风云卫星数据和产品应用手册讲解
发布时间:2019-06-03 22:23:42
发布时间:2019-06-03 22:23:42
风云卫星数据和产品
应用手册
风云三号A气象卫星(简称FY-3A)是我国的第二代太阳同步极轨气象卫星。风云三号气象卫星将实现全球、全天候、多光谱、三维、定量对地观测。风云三号星发射总质量为2450kg,发射尺寸:4.38m×2m×2m,卫星长期功耗1130W。
卫星本体由服务舱、推进舱与有效载荷舱组成。服务舱采用中心承力筒和隔板结构,主要安装电源、测控、数管及姿轨控分系统的部件和设备、推进舱采用中心承筒和隔板结构,主要安装推进系统设备以及蓄电池组和放电调节器。有效载荷舱隔板和构架结构,主要安装探测仪器的探测头部,舱内主要安装探测仪器的电子设备等。
风云三号A卫星有十一台遥感探测仪器。遥感数据通过两个实时传输信道(HRPT和MPT)和一个延时传输信道(DPT)进行传输。
风云三号A卫星设计寿命为3年。
⑴轨道类型:近极地太阳同步轨道
⑵轨道标称高度:831公里
⑶轨道倾角:98.81°
⑷入轨精度:半长轴偏差: |Δa|≤5公里
轨道倾角偏差:|Δi|≤0.1°
轨道偏心率 ≤0.003
⑸标称轨道回归周期为5.79天
⑹轨道保持偏心率:≤0.00013
⑺交点地方时漂移:2年小于15分钟
⑻卫星发射窗口:降交点地方时10:05
⑴姿态稳定方式:三轴稳定
⑵三轴指向精度:≤0.3°
⑶三轴测量精度:≤0.05°
⑷三轴姿态稳定度:≤4×10-3 °/s
⑴记时方式:J2000日计数和日毫秒计数
⑵记时单位:1毫秒
⑶时间精度(星地总精度):小于20毫秒
(1)通道数、各通道波段范围、灵敏度见表1-1。
(2)空间分辨率:星下点分辨率1.1Km
(3)扫描范围:±55.4°
(4)扫描器转速:6线/秒
(5)每条扫描线采样点数:2048
(6)MTF≥0.3
(7)通道配准:飞行方向/扫描方向星下点配准精度<0.5个像元
(8)扫描抖动:<0.8个IFOV
(9)通道信号衰减:<15%/2年
(10)量化等级:10比特
(11)定标精度:可见光和近红外通道:
CH1、2、7、8、9 7%(反射率)
CH6、10 10%(反射率)
红外通道:1k(270k)。
表1-1 可见光红外扫描辐射计光谱性能
通道 | 波段范围(μm) | 噪声等效反射率ρ(%) 噪声等效温差(300k) | 动态范围 (ρ或k) |
1 | 0.58-0.68 | 0.1% | 0-100% |
2 | 0.84-0.89 | 0.1% | 0-100% |
3 | 3.55-3.93 | 0.4k | 180-350k |
4 | 10.3-11.3 | 0.2k | 180-330k |
5 | 11.5-12.5 | 0.2k | 180-330k |
6 | 1.55-1.64 | 0.15% | 0-90% |
7 | 0.43-0.48 | 0.05% | 0-50% |
8 | 0.48-0.53 | 0.05% | 0-50% |
9 | 0.53-0.58 | 0.05% | 0-50% |
10 | 1.325-1.395 | 0.19% | 0-90% |
(1)仪器通道光谱参数
(2)仪器通道灵敏度
(3)定标精度
(4)探测像元地面分辨率
(5)通道间配准
(6)仪器通道动态范围
(7)黑体温度
(8)辐射校准周期、量化等级等性能指标
(9)其他遥测特征参数
(10)仪器性能参数稳定性分析
(11)产品示例
表1-2 红外分光计性能
仪 器 性 能 | 要 求 |
对地扫描张角 | ±49.5° |
每条线扫描点数 | 56 |
地面视场 | 17km(836km高度,星下点) |
步进和测量时间 | 100ms |
行扫描时间和回扫时间 | 6.4s |
辐射校准暖黑体温度 | 290K |
冷空间温度 | ~3K |
红外定标精度 | 1K@(270K) |
可见光定标精度 | 5%反射率(CH21-CH24 7%,争取6%) (CH25-CH26 10%,争取9%) |
通道间配准精度 | 5%像元 |
辐射校准周期 | 256s |
量化等级 | 13比特 |
表1-3 红外分光计光谱通道特征
通道序号 | 中心 波数 (cm-1) | 中心 波长 (μm) | 半功率 带宽 (cm-1) | 主要吸收 气体成份 | 最高 温度 (K) | NEΔN (mW/m2 .sr.cm-1) | 贡献 最大层 (hPa) |
1 2 3 4 5 6 7 | 669 680 690 703 716 733 749 | 14.95 14.71 14.49 14.22 13.97 13.64 13.35 | 3 10 12 16 16 16 16 | CO2 CO2 CO2 CO2 CO2 CO2/H2O CO2/H2O | 280 265 250 260 275 290 300 | 4.00 0.80 0.60 0.35 0.32 0.36 0.30 | 30 60 100 400 600 800 900 |
8 | 802 | 12.47 | 30 | 大气窗区 | 330 | 0.20 | 地表 |
9 | 900 | 11.11 | 35 | 大气窗区 | 330 | 0.15 | 地表 |
10 | 1030 | 9.71 | 25 | O3 | 280 | 0.20 | 25 |
11 | 1345 | 7.43 | 50 | H2O | 330 | 0.23 | 800 |
12 13 | 1365 1533 | 7.33 6.52 | 40 55 | H2O H2O | 285 275 | 0.30 0.30 | 700 500 |
14 15 16 17 | 2188 2210 2235 2245 | 4.57 4.52 4.47 4.45 | 23 23 23 23 | N2O N2O CO2/N2O CO2/N2O | 310 290 280 266 | 0.01 0.01 0.01 0.01 | 1000 950 700 400 |
18 | 2388 | 4.19 | 25 | CO2 | 320 | 0.01 | 大气 |
19 20 | 2515 2660 | 3.98 3.76 | 35 100 | 大气窗区 大气窗区 | 340 340 | 0.01 0.002 | 地表 地表 |
21 | 14500 | 0.69 | 1000 | 大气窗区 | 100%A | 0.10%A | 云 |
22 | 11299 | 0.885 | 385 | 大气窗区 | 100%A | 0.10%A | 地表 |
23 | 10638 | 0.94 | 550 | H2O | 100%A | 0.10%A | 地表 |
24 | 10638 | 0.94 | 200 | H2O | 100%A | 0.10%A | 地表 |
25 | 8065 | 1.24 | 650 | H2O | 100%A | 0.10%A | 地表 |
26 | 6098 | 1.64 | 450 | H2O | 100%A | 0.10%A | 地表 |
(1)仪器通道中心频率
(2)仪器通道频率宽度
(3)仪器通道主波率效率
(4)通道间配准精度
(5)通道频率稳定度
(6)通道灵敏度
(7)动态范围
(8)冷空计数值
(9)黑体PRT温度变化分析
(10)定标精度
(11)与国外同类产品的相互比较
微波温度计仪器参数和通道参数主要技术指标具体见表1-4和表1-5。
表1-4 仪器参数
参 数 | 指 标 |
对地扫描张角 | ±48.3° |
对地观测 | 15个点/每条扫描线 |
扫描步进角 | 6.9° |
水平分辨率* | 50~75公里(836km高度,星下点) |
星上校正黑体 | 2个(暖黑体、外层冷空间) |
通道间配准精度 | 波束指向误差<0.1° (* 波束宽度的公差为其标称值的±10%。) 考核指标:小于0.2° |
每条扫描线扫描时间 | 16秒 |
频率稳定度 | 优于10-4 |
量化等级 | 13比特 |
表1-5 光谱通道技术指标
通道序号 | 中心频率 (GHz) | 主要吸收气体 | 带宽 (MHz) | NEΔT (k) | 天线波束效率(%) | 动态范围 (K) | 定标精度 (不含NEΔT) (K) |
1 | 50.30 | 窗区 | 180±10% | 0.55 | >90 | 3-340 | 1.2 |
2 | 53.596±0.115 | O2 | (2×170)±10% | 0.4 | >90 | 3-340 | 1.2 |
3 | 54.94 | O2 | 400±10% | 0.4 | >90 | 3-340 | 1.2 |
4 | 57.290 | O2 | 330±10% | 0.4 | >90 | 3-340 | 1.2 |
(1)对地扫描张角
(2)扫描带宽度
(3)对地观测
(4)通道间配准精度
(5)扫描周期
(6)量化等级
(7)定标精度
(8)灵敏度
(9)动态范围
(10)星下点像元水平尺度
(11)通道频率特性
(12)黑体温度均匀性
(13)天线扫描时序
(14)定标观测数据特性
(15)在轨频率干扰
(16)产品应用示例
微波湿度计仪器参数和通道参数主要技术指标具体见表1-6和表1-7。
表1-6 仪器参数
参 数 | 指 标 |
对地扫描张角 | ±53.35° |
扫描带宽度 | 约2700公里 |
对地观测 | 98个点/每条扫描线 |
水平分辨率* | 约15公里(836km高度,星下点) |
星上校正黑体 | 2个(暖黑体、外层冷空间) |
通道间配准精度 | 波束指向误差<0.1° |
扫描周期 | 2.667秒 |
量化等级 | 14比特 |
仪器定标精度 | 1.5K(不含NEΔT) |
表1-7 光谱通道技术指标
通道 序号 | 中心频率 (GHz) | 主要吸收气体 | 单边 带宽 (MHz) | NEΔT (k) | 频率 稳定度(MHz) | 天线波束效率 | 接收机 工作方式 | 动态 范围(K) |
1 | 150(V) | 窗区 | 1000±10% | 1.1 | 50 | ≥93% | 双边带 | 3-340 |
2 | 150(H) | 窗区 | 1000±10% | 1.1 | 50 | ≥93% | 双边带 | 3-340 |
3 | 183.31±1 | H2O | 500±10% | 1.2 | 30 | ≥95% | 双边带 | 3-340 |
4 | 183.31±3 | H2O | 1000±10% | 1.1 | 30 | ≥95% | 双边带 | 3-340 |
5 | 183.31±7 | H2O | 2000±10% | 1.2 | 30 | ≥95% | 双边带 | 3-340 |
(1)光谱通道选择和性能要求见表1-8
(2)量化等级:12比特
(3)扫描范围:±(55.1±0.05)度
(4)扫描器转速:40转/分
(5)扫描抖动:小于1 IFOV(1公里)
(6)每条扫描线采样点数:2048(~1000米),8192(~250米)
(7)波长定位精度:优于光谱带宽的10%
(8)通道间像元配准:<0.3个像元
(9)饱和恢复:≤6个像元(1000米)
≤24个像元(250米)
(10)MTF:≥0.27(1000米)
≥0.25(250米)
(11)进行星上可见光、红外定标(可见光定标为试验)
(12)定标精度:可见光和近红外通道:
CH1-4,6-14:7%(反射率)
CH15-20:10%(反射率)
红外通道:1k(270k)
(13)同一通道,不同像元响应的不均匀性:≤5-7%(通过遥控注数修正后的结果)
表1-8 中分辨率光谱成像仪通道性能要求
通道序号 | 中心波长 (微米) | 光谱带宽 (微米) | 空间分辨率 (米) | 噪声等效反射率ρ(%)、温差(300K) | 动态范围(最大反射率ρ、最大温度K) |
1 | 0.470 | 0.05 | 250 | 0.45 | 100% |
2 | 0.550 | 0.05 | 250 | 0.4 | 100% |
3 | 0.650 | 0.05 | 250 | 0.4 | 100% |
4 | 0.865 | 0.05 | 250 | 0.45 | 100% |
5 | 11.25 | 2.5 | 250 | 0.54 K | 330k |
6 | 0.412 | 0.02 | 1000 | 0.1 | 80% |
7 | 0.443 | 0.02 | 1000 | 0.1 | 80% |
8 | 0.490 | 0.02 | 1000 | 0.05 | 80% |
9 | 0.520 | 0.02 | 1000 | 0.05 | 80% |
10 | 0.565 | 0.02 | 1000 | 0.05 | 80% |
11 | 0.650 | 0.02 | 1000 | 0.05 | 80% |
12 | 0.685 | 0.02 | 1000 | 0.05 | 80% |
13 | 0.765 | 0.02 | 1000 | 0.05 | 80% |
14 | 0.865 | 0.02 | 1000 | 0.05 | 80% |
15 | 0.905 | 0.02 | 1000 | 0.10 | 90% |
16 | 0.940 | 0.02 | 1000 | 0.10 | 90% |
17 | 0.980 | 0.02 | 1000 | 0.10 | 90% |
18 | 1.030 | 0.02 | 1000 | 0.10 | 90% |
19 | 1.640 | 0.05 | 1000 | 0.08 | 90% |
20 | 2.130 | 0.05 | 1000 | 0.07 | 90% |
微波成像仪通道特性列于表1-9。
表1-9 微波成像仪通道特性
频率(GHz) | 10.65 | 18.7 | 23.8 | 36.5 | 89 | |
极化 | V.H | V.H | V.H | V.H | V.H | |
带宽(MHz) | 180 | 200 | 400 | 900 | 2×2300 | |
灵敏度(k) | 0.6 | 1.0 | 1.0 | 1.0 | 2.0 | |
定标精度(k) | 1.2 | 2.0 | 2.0 | 2.0 | 2.8 | |
动态范围(k) | 3~340 | |||||
采样点数 | 240 | |||||
量化等级 | 12比特 | |||||
主波束效率 | ≥90% | |||||
地面分辨率 ≤(km×km) | 51×85 | 30×50 | 27×45 | 18×30 | 9×15 | |
通道间配准 | 波束指向误差<0.1° | |||||
扫描方式 | 圆锥扫描 | |||||
幅宽(Km) | 1400 | |||||
天线视角(°) | 45±0.1 | |||||
扫描周期(s) | 1.7±0.1 | |||||
扫描周期误差(ms) | 0.34ms(相邻扫描线)、1ms(连续30分钟内) | |||||
1.通道光谱参数
2.通道信噪比
3.仪器线性度
4.慢反射板双向反射特性
5.定标精度
6.动态范围
7.产品示例
8.功能测试:包括通过命令注入的方式控制观测模式的运行以及改变观测模式的运行参数。
光谱波段及扫描方式如下所述:
(1)大气模式
在250~340nm间选定12个通道探测大气臭氧的垂直分布,其光谱特性见表1-10。
表1-10 大气模式的仪器光谱特性
通道 | 中心波长(nm) | 带宽(nm) |
1 | 252.00±0.05 | 1+0.2,-0 |
2 | 273.62±0.05 | 1+0.2,-0 |
3 | 283.10±0.05 | 1+0.2,-0 |
4 | 287.70±0.05 | 1+0.2,-0 |
5 | 292.29±0.05 | 1+0.2,-0 |
6 | 297.59±0.05 | 1+0.2,-0 |
7 | 301.97±0.05 | 1+0.2,-0 |
8 | 305.87±0.05 | 1+0.2,-0 |
9 | 312.57±0.05 | 1+0.2,-0 |
10 | 317.56±0.05 | 1+0.2,-0 |
11 | 331.26±0.05 | 1+0.2,-0 |
12 | 339.89±0.05 | 1+0.2,-0 |
云盖光度计 | 379.00±1.00 | 3+0.3 |
(2)太阳模式
①在光谱波段160~400nm进行连续扫描,步长为0.07nm,观测太阳光谱辐照度。
②波长重复性:±0.02nm
③波长精度:±0.03nm(臭氧特征线)
±0.05nm(连续光谱)
④动态范围:106(从最小量化信号到最大量化信号,量化等级16bit/档)
⑤灵敏度:
亮度:6×10-4μw/cm2·sr·nm(λ=252nm)时,S/N≥30
(第一颗星)S/N≥5
照度:0.5W/cm3(λ=160nm)时,S/N≥2
⑥杂散光:4.5X10-6量级
⑦辐亮、辐照度相对定标精度:3%(160~250nm)
2%(250~400nm)
⑧漫反射板定标精度:3%
⑨星下点分辨率:约200Km
⑩波长监测:星上用253.7nmHg线进行波长监测,在该谱线上的监测点数目视仪器的光谱响应形状确定,如为三角形,可取五点。
星上应监测仪器的增益和漫反射板反射率的变化,并通过遥测发送到地面。
(1)光谱波段:臭氧总量探测仪为一个六通道分光光度计,其通道的光谱特性见表1-1。
表1-11 仪器的光谱特性
通道 | 中心波长(nm) | 带宽(nm) |
1 | 308.68±0.15 | 1+0.3,-0 |
2 | 312.59±0.15 | 1+0.3,-0 |
3 | 317.61±0.15 | 1+0.3,-0 |
4 | 322.40±0.15 | 1+0.3,-0 |
5 | 331.31±0.15 | 1+0.3,-0 |
6 | 360.11±0.25 | 1+0.3,-0 |
(2)动态范围:104,详见表1-12
表1-12 动态范围
通道中心波长(nm) | 探测最小亮度(W/cm2.nm.sr) | 探测最大亮度(W/cm2.nm.sr) |
308.68 | 0.009 | 9.878 |
312.59 | 0.009 | 13.684 |
317.61 | 0.027 | 17.424 |
322.40 | 0.036 | 18.26 |
331.31 | 0.108 | 30.525 |
360.11 | 0.207 | 34.683 |
(3)灵敏度:≤0.004μw/cm2·sr·nm(S/N=1)
(4)扫描范围:垂直于卫星轨道的平面内作空间扫描,在天底方向两侧各取样15个点,天底一个点,共31个取样点。
(5)行扫描时间:8.16秒
(6)相对定标精度:辐亮、辐照度2%;光谱0.03nm
(7)漫反射板定标精度:3%
(8)量化等级:12比特(放大器分3档)
(9)杂散光:<10-3
(10)星下点分辨率: 优于55km
(11)星上应作波长监测和漫反射板反射率监测,并通过遥测发送到地面。
(1)辐照度测量范围:100~1400W/m2
(2)光谱范围:0.2~50μm
(3)测量灵敏度:0.2Wm-2
(4)定标精度:0.5%
(5)2年长期稳定度:<0.02%
(6)量化等级:16比特
ERM在轨测试的主要项目及技术指标如下:
(1)辐亮度范围
短波通道:0-370Wm-2Sr-1,全波通道:0-500 Wm-2Sr-1。
(2)定标精度
短波通道:1%;全波通道:0.8%
(3)灵敏度
短波通道:0.4 Wm-2Sr-1;全波通道:0.4 Wm-2Sr-1。
(4) 2年的长期稳定度小于1 %。
(5)产品示例
选择ERM扫描视场、GERB的Level2(大气顶辐射通量)在同一区域、时间相近产品显示,比较,分析产品偏差。
(6)仪器指向误差
空间重离子成分和高能质子能谱。
(1)高能质子能道
表1-13 高能质子能谱探测主要指标
通道 | 质子能谱 | 能量范围 |
1 | P1 | 3.0~5.0 MeV |
2 | P2 | 5.0~10 MeV |
3 | P3 | 10~26 MeV |
4 | P4 | 26~40 MeV |
5 | P5 | 40~100 MeV |
6 | P6 | 100~300 MeV |
(2)重离子能道
表1-14 重离子探测主要指标
通道 | 探测重离子 | 能量范围 |
1 | He | 12~110 MeV |
2 | Li, Be, B | 24~220 MeV |
3 | C, N, O, F, Ne, Na | 60~570 MeV |
4 | Mg, Al, Si, P, S, Cl | 0.2~1.2 GeV |
5 | Ar, K, Ca, Sc, Ti | 0.3~2.0 GeV |
6 | Fe | 0.5~2.0 GeV |
本文档中常用的缩略语如下表所示。其中,产品的缩略语将用于相关软件成分的命名与标识。
表 2-1 缩略语表——风云三号应用系统工程技术系统名称
中文 | 英文 | 缩写 |
数据接收系统 | Data Aqurization System | DAS |
运行控制系统 | Operation & Control System | OCS |
数据预处理系统 | Data PreProcessing System | DP2S |
产品生成系统 | Products Generation System | PGS |
监测分析服务系统 | Analysis & Service System | ASS |
产品质量检验系统 | Quality Control System | QCS |
计算机及网络系统 | Computer & Network System | CNS |
数据存档与检索服务系统 | Archival & Retrieval Service System | ARS2 |
应用示范系统 | Users Demonstration System | UDS |
仿真与技术支持系统 | Simulation & Technique Support System | STS2 |
有效载荷飞机试验系统 | PayLoad Airplane System | PAS |
表 2-2 缩略语表——风云三号遥感仪器名称
中文 | 英文 | 缩写 |
扫描辐射计 | Visible and InfraRed Radiometer | VIRR |
红外分光计 | InfraRed Atmospheric Sounder | IRAS |
中分辨率光谱成像仪 | Medium Resolution Spectral Imager | MERSI |
微波温度计 | MicroWave Temperature Sounder | MWTS |
微波湿度计 | MicroWave Humidity Sounder | MWHS |
微波成像仪 | MicroWave Radiation Imager | MWRI |
地球辐射探测仪 | Earth Radiation Measurement | ERM |
太阳辐射监测仪 | Solar Irradiation Monitor | SIM |
紫外臭氧总量探测仪 | Total Ozone Unit | TOU |
紫外臭氧垂直探测仪 | Solar Backscatter Ultraviolet Sounder | SBUS |
空间环境监测器 | Space Environment Monitor | SEM |
表 2-3 缩略语表——数据及产品名称
英文 | 中文 | 缩略 |
MEdium resolution Spectral Picture Transmission | 风云三号中分辨图像传输 | MPT |
High Resolution Picture Transmission | 风云三号高分辨图像传输 | HRPT |
Delayed Picture Transmission | 风云三号延时图像传输 | DPT |
Orbital Elements | 轨道根数 | ORB |
Satellite Orbit Decision | 卫星轨道计算 | SOD |
CALibration Parameters | 定标参数 | CAL |
CLoud Detection | 云检测结果 | CLD |
SEGment Cluster Dataset | 段气候数据集 | SEG |
CLoud Classification | 云分类结果 | CLC |
Cloud Analysis | 云分析参数 | CLA |
Cloud Total Amount | 云总量 | CTA |
Atmospheric Motion Vectors | 大气运动矢量 | AMV |
PRecipitation Estimation | 降水估计 | PRE |
PRecipitation Index | 降水指数 | PRI |
Temperature Blackbody Equivalent | 相当黑体温度 | TBB |
Outgoing Long wave Radiation | 出射长波辐射 | OLR |
Humidity ProFile derived from Cloud Analysis | 用云分析出的湿度廓线 | HPF |
Total Precipitation Water for Clear Sky | 晴空大气可降水 | TPW |
Upper Troposphere Humidity | 对流层上部湿度 | UTH |
FOG Detection | 浓雾自动分析 | FOG |
Products from Energy Water Balance System | 能量水份平衡系统 | EWB |
Sea Surface Temperature | 海表温度 | SST |
Sea ICE | 海冰 | ICE |
DuST Storm Monitoring | 沙尘监测产品 | DST |
FLooD Monitoring | 水情监测产品 | FLD |
FIRe Monitoring | 火情监测产品 | FIR |
Soil Moisture | 地表土壤含水量 | SOL |
Tropical Cyclone Location & Intensity Information | 热带气旋卫星定位 | TCL |
Image MOSaic | 拼图 | MOS |
SNoW Cover | 积雪 | SNW |
Surface Solar Irradiance | 地面入射太阳辐射 | SSI |
Normalized Derived Vegetation Index | 归一化植被指数 | NVI |
Satellite and Ground Equipment STatUs | 卫星和地面设备工况 | STU |
Image Acquisition System | 图像获取系统 | IAS |
ISCCP Data Set | ISCCP数据集 | IDS |
Coded Telemetry | 编码遥测 | TMC |
Analog Telemetry | 模拟遥测 | TMA |
Sensor Alignment Parameters | 图像通道配准参数 | SAP |
Product Customized Tailor | 产品定制处理 | PCT |
Product Personation Processing | 产品替代处理 | PPP |
Telemetry and Tele-Command | 遥测和遥控 | TTC |
表2- 4 缩略语表——数据及产品格式
英文 | 中文 | 缩写 |
Advanced Weather-satellite eXchange format | 9210分发及PGS中间数据集数据格式(V2.0) | AWX |
Hierarchical Data Format | 分层数据格式(V5.1.4) | HDF |
Joint Picture Expert Group | 联合压缩文件格式 | JPG |
Bit Mapping Picture | 位图格式 | BMP |
HDF(Hierarchical Data Format)是用于存储和分发科学数据的一种自我描述、多对象文件格式。HDF是由美国国家超级计算应用中心(NCSA)创建的,以满足不同群体的科学家在不同工程项目领域之需要。HDF被设计为:
✧ 自述性:对于一个HDF文件里的每一个数据对象,有关于该数据的综合信息(元数据)。在没有任何外部信息的情况下,HDF允许应用程序解释HDF文件的结构和内容。
✧ 通用性:许多数据类型都可以被嵌入在一个HDF文件里。例如,通过使用合适的HDF数据结构,符号、数字和图形数据可以同时存储在一个HDF文件里。
✧ 灵活性:HDF允许用户把相关的数据对象组合在一起,放到一个分层结构中,向数据对象添加描述和标签。它还允许用户把科学数据放到多个HDF文件里。
✧ 扩展性:HDF极易容纳将来新增加的数据模式,容易与其他标准格式兼容。
✧ 跨平台性:HDF是一个与平台无关的文件格式。HDF文件无需任何转换就可以在不同平台上使用。
HDF是存储科学数据的容器,能够存储图像、多维数组、表格等,强调存储和I/O效率。HDF在国际科学界和产业界得到广泛支持。HDF是一个开放式的数据格式,针对不断出现的新应用,HDF也在不断的升级。HDF新的版本支持网络化环境下的资料服务应用需求,目前已经有大量基于Internet的HDF数据文件发布和应用程序(如JVH等)。更重要的是,这种升级与应用软件的编制是无关的,保证了程序和数据的向上兼容性。
NCSA 提供了各类UNIX平台、Windows平台的HDF库。并且提供的语言接口有FORTRAN和C语言,也有用于Java 程序员访问HDF文件的Java HDF接口程序。
HDF提供6种基本数据类型:光栅图像(Raster Image),调色板(Palette),科学数据集(Scientific Data Set),注解(Annotation),虚拟数据(Vdata)和虚拟组(Vgroup)。所有的这6种基本数据类型由图3-1来阐明。
图3-1 HDF数据类型
✧ Raster Image数据模型被设计成能为光栅图像数据的存储和描述提供一个灵活的方法,包括8比特和24比特光栅图像。
✧ Palette作为颜色查找表提供图像的色谱。它是一个表格,其表中每列的数字表示特定颜色的数字。
✧ Scientific Data Set模型是用来存储和描述科学数据的多维数组。
✧ Vdata模式是用来存储和描述数据表格的结构。
✧ HDF的Annotations是文本字符串,用来描述HDF文件,或HDF文件包含的HDF数据对象。
✧ Vgroup结构模型被设计为与相关数据对象有关。一个Vgroup可以包含另一个Vgroup以及数据对象。任何HDF对象都可以包含在一个Vgroup中。
HDF库为每一个数据模型提供一个应用编程接口。
HDF文件可以在几个交互层次中可视。在最底层,HDF是一个存储科学数据的物理文件格式。在它的最高层,HDF是集工具和应用于一体的数据文件,可以对HDF文件中的数据进行修改、显示和分析。在这两个层次之间,HDF是一个能提供高层和底层编程接口的软件库。图3-2为这些接口层的示意图。
图3-2 HDF文件的3层交互
基本接口层,或称为底层的应用编程接口(API),是为软件开发者保留的。它是为数据流的直接文件I/O、错误处理、内存管理和物理存储而设计的。它是一个为有经验的HDF程序员提供的软件工具。比较目前从高层接口得到的功能,通过使用这些基本接口层,HDF程序员创建HDF文件时能够做更多的事。底层接口例程只提供C语言。
HDF APIs(HDF应用编程接口)分为两类:多文档接口(用于新版本)和单文档接口(用于旧版本)。多文档接口是提供从一个应用中同时连接几个HDF文件的接口,这点很重要,但单文档接口并不支持这点。用户在开发新的接口和界面时,必须提醒他们是在一个改进了的新接口版本下开发的。为了向上兼容,旧版本仍然保留。
HDF APIs包含几个独立的例程集,每个例程集是专门为简化一种数据类型的存储处理而设计的。这些接口在图1d中作为单文件和多文件层。尽管每个接口都要求程序调用,但所有底层细节都可以忽略。大多数情况下,只须在正确的时间调用正确的函数,剩下的事就由接口程序处理。多数HDF接口例程都有FORTRAN-77和C语言。也有用于Java 程序员访问HDF文件的Java HDF接口程序。
文件属性又称全局属性。HDF 除了描述每一个科学数据对象SDS的特征外,也在总体上描述文件的内容。FY-3卫星数据文件(全局)属性记录了扫描时间、轨道参数、扫描线数和仪器状态等信息。
在科学数据集中保存的是探测数据、定位数据、定标数据等信息。科学数据集有一些属性参数,可以对数据对象进行自我描述。 图 4-1 是科学数据集对象的组成结构。
必要属性 可选属性
图4-1 科学数据集(SDS)的必选属性和可选属性示意图。
科学数据集(SDS):是多维结构的数据。
左边是必选属性,右边是可选属性 。
必要属性:
描述科学数据集(SDS)所需要的最少信息。
● 名称: 该科学数据集具有唯一性的标识名称。
● 数据类型: 数据存储类型(如, float 32)
● 数据维数: 描述数据各维的大小。
可选属性:
● 预定义属性:补充描述以下信息。
各维及数据的标记
数据的单位(units):
值域(Valid_range):
填充值(_FillValue)
用于解释或显示数据的坐标系
● 用户定义属性
MODIS 1B产品用这类属性(不同于类似的预定义属性)指明定标缩放比例和偏移量。
● 坐标缩放比例
在解释和显示数据时使用的各维的缩放比例
虚拟数据(Vdata) 是有固定数据域的表格,FY-3数据文件中可以使用Vdata保存每一扫描线的附加信息。图 4-2 是其结构示意图。
Vdata 的名称 | ||
Vdata的类别 | ||
数据域_1 | 数据域_2 | 数据域_3 |
6.9 | 3.3 | 6.5 |
2.1 | 0.4 | 2.8 |
9.7 | 3.3 | 9.5 |
0.6 | 2.2 | 4.3 |
记录 数据域
图4-2 由HDF定义的Vdata各项示意图
虚拟数据(Vdata) 由名称、类别、数据域名唯一地定义
∙ 名称: 从总体上描述数据内容的标记
∙ 类别:通过指明数据用途进一步区分Vdata
∙ 数据域名:各数据域的标记
数据域:保存元数据的单元,每列为一类数据域,在Vdata生成时要指明其数据类型和级别数(order)。数据类型可以是字符,8比特、16比特或32比特的有符号的或无符号的整型数、32比特或64比特的浮点数。级别数(order)则指明在数据域中特定数据类型所使用的字的个数。
表5-1 FY3A扫描辐射计L1数据概况表
产品名称 | FY3A扫描辐射计L1数据 |
FY3A VIRR Level1 Product | |
物理意义(中英文) | 扫描辐射计10个可见光和红外通道1公里分辨率测值,经辐射定标和地球定位处理后生成的数据文件 |
The geolocated and calibrated observations from VIRR instrument with 10 channels in visible and infrared spectral region with ground resolution of 1km at nadir are included | |
用途(中英文) | 主要用于云、冰雪、气溶胶、植被、海面温度等产品的计算 |
It is manly used for calculating cloud, parameter,Ice cover,snow cover,aerosol,vegetation index, sea surface temperature etc. | |
用户 | FY3产品生成系统、应用服务系统、应用示范系统 |
表5-2 FY3A扫描辐射计L1数据基本信息表
产品名称:FY3A扫描辐射计L1数据 | ||
文件名约定: FY3A_VIRRD_GBAL_L1_YYYYMMDD_HHmm_1000M_MS.HDF(白天) FY3A_VIRRN_GBAL_L1_YYYYMMDD_HHmm_1000M_MS.HDF(夜间) | ||
栏目 | 值 | 备注 |
卫星名 | FY3A | 参考“附件2:风云三号应用数据文件名命名规范”4.3 |
仪器名称 | VIRRX | |
数据区域类型 | GBAL | |
数据级别 | L1 | |
分辨率 | 1000M | |
数据格式名称 | HDF | |
分块方式 | 块/5分钟 | |
数据量 | 146M(白天),94M(夜间) | |
表5-3 FY3A扫描辐射计L1数据HDF结构
L1全局文件属性 | |||||
私有文件属性 | 私有文件属性名 | 私有文件属性中文名 | |||
1 | Product_Format_Ver | Product_Format_Ver | 产品格式版本号 | ||
2 | Time_Error_Scans | Time_Error_Scans | 时序出错线数 | ||
3 | Frame_Count_Error_Scans | Frame_Count_Error_Scans | 帧计数出错线数 | ||
4 | Frame_Sync_Error_Scans | Frame_Sync_Error_Scans | 帧同步出错线数 | ||
5 | Lost_Scans | Lost_Scans | 丢线数 | ||
6 | Calibrated_Scans | Calibrated_Scans | 完成定标扫描线数 | ||
7 | Geolocated_Scans | Geolocated_Scans | 完成定位扫描线数 | ||
8 | Ramp_Cal_Indicators | Ramp_Cal_Indicators | 斜坡校准指示符 | ||
9 | RefSB_Cal_Coefficients | RefSB_Cal_Coefficients | 反射通道定标系数 | ||
10 | RefSB_Solar_Irradiance | RefSB_Solar_Irradiance | 反射通道太阳辐照度 | ||
11 | RefSB_Equivalent_Width | RefSB_Equivalent_Width | 反射通道等效宽度 | ||
12 | RefSB_Effective_Wavelength | RefSB_Effective_Wavelength | 反射通道有效波长 | ||
13 | Emmisive_Centroid_Wave_Number | Emmisive_Centroid_Wave_Number | 发射通道中心波数 | ||
14 | Emmisive_BT_Coefficients | Emmisive_BT_Coefficients | 发射通道亮温订正系数 | ||
15 | Prelaunch_Nonlinear_Coefficients | Prelaunch_Nonlinear_Coefficients | 发射前非线性订正系数 | ||
16 | Emissive_Coefficients_Ave | Emissive_Coefficients_Ave | 发射通道定标系数平均值 | ||
17 | Emissive_Coefficients_Std | Emissive_Coefficients_Std | 发射通道定标系数标准差 | ||
科学数据集 | 科学数据集名(英文) | 科学数据集中文名 | |||
SDS 01 | EV_RefSB SDS | EV_RefSB | 太阳反射通道地球观测数据 | ||
SDS 02 | EV_Emissive SDS | EV_Emissive | 发射通道地球观测数据 | ||
SDS 03 | Emissive_Radiance_Scales SDS | Emissive_Radiance_Scales | 发射通道定标系数 | ||
SDS 04 | Emissive_Radiance_Offsets SDS | Emissive_Radiance_Offsets | 发射通道定标偏移量 | ||
SDS 05 | Longitude SDS | Longitude | 经度 | ||
SDS 06 | Latitude SDS | Latitude | 纬度 | ||
SDS 07 | SensorZenith SDS | SensorZenith | 传感器天顶角 | ||
SDS 08 | SensorAzimuth SDS | SensorAzimuth | 传感器方位角 | ||
SDS 09 | SolarZenith SDS | SolarZenith | 太阳高度角 | ||
p < class=' _15'> > | SDS 10 | SolarAzimuth SDS | SolarAzimuth | 太阳方位角 | |
p < class=' _15'> > | SDS 11 | LandSeaMask SDS | LandSeaMask | 海陆模板数据 | |
p < class=' _15'> > | SDS 12 | Height SDS | Height | 海拔高度 | |
p < class=' _15'> > | SDS 13 | LandCover SDS | LandCover | 陆地覆盖类型 | |
p < class=' _15'> > | SDS 14 | QA SDS | QA | 质量信息 | |
p < class=' _15'> > | SDS 15 | Packet_Count SDS | Packet_Count | 包序列计数 | |
p < class=' _15'> > | SDS 16 | Day_Count SDS | Day_Count | 天计数 | |
p < class=' _15'> > | SDS 17 | Msec_Count SDS | Msec_Count | 天毫秒级计数 | |
p < class=' _15'> > | SDS 18 | Day_Night_Flag SDS | Day_Night_Flag | 白天/夜晚模式标志 | |
p < class=' _15'> > | SDS 19 | EVS_Orb_Pos SDS | EVS_Orb_Pos | 对地观测起始时刻ECR轨道位置(x,y,z) | |
p < class=' _15'> > | SDS 20 | EVS_Orb_Vel SDS | EVS_Orb_Vel | 对地观测起始时刻ECR轨道速度 | |
p < class=' _15'> > | SDS 21 | EVS_Attitude_Angles SDS | EVS_Attitude_Angles | 对地观测起始时刻姿态角(φ,θ,ψ) | |
表5-4 FY3A扫描辐射计L1数据全局文件属性定义
描述 | 属性名称 | 数据类型 | 数量 | 值 |
卫星名称(如FY-3A等) | Satellite Name | 8-bit signed char | 不定长 | FY-3A |
仪器名称 | Sensor Name | 8-bit signed char | 不定长 | Visible and InfraRed Radiometer |
传感器代码(如VIRR) | Sensor Identification Code | 8-bit signed char | 不定长 | VIRR |
数据集名称(如MPT) | Dataset Name | 8-bit signed char | 不定长 | Global VIRR Data |
文件名称 | File Name | 8-bit signed char | 不定长 | |
文件别名 | File Alias Name | 8-bit signed char | 不定长 | |
产品生成地(NSMC) | Responser | 8-bit signed char | 不定长 | |
处理软件版本号(如V1.0.0) | Version Of Software | 8-bit signed char | 不定长 | V 1.0.0 |
处理软件更新日期 | Software Revision Date | 8-bit signed char | 不定长 | |
定标系数版本号 | Version Of Coefficient Index | 8-bit signed char | 不定长 | |
定标系数更新日期 | Coefficient Index Revision Date | 8-bit signed char | 不定长 | |
数据观测开始日期(包括年月日) | Observing Beginning Date | 8-bit signed char | 不定长 | |
数据观测开始时间(包括时分秒毫秒) | Observing Beginning Time | 8-bit signed char | 不定长 | |
数据观测结束日期(包括年月日) | Observing Ending Date | 8-bit signed char | 不定长 | |
数据观测结束时间(包括时分秒毫秒) | Observing Ending Time | 8-bit signed char | 不定长 | |
数据创建日期(包括年月日) | Data Creating Date | 8-bit signed char | 不定长 | |
数据创建时间(包括时分秒毫秒) | Data Creating Time | 8-bit signed char | 不定长 | |
白天夜间标志 | Day Or Night Flag | 8-bit signed char | 不定长 | |
轨道号 | Orbit Number | 32-bit unsigned Integer | 1 | |
轨道周期 | Orbit Period | 16-bit unsigned Integer | 1 | |
轨道方向 | Orbit Direction | 8-bit signed char | 1 | |
数据质量标记(1-5级) | Data Quality | 8-bit unsigned Integer | 1 | |
总扫描数 | Number Of Scans | 32-bit signed Integer | 1 | |
白天模式扫描数 | Number Of Day mode scans | 32-bit signed Integer | 1 | |
晚上模式扫描数 | Number of Night mode scans | 32-bit signed Integer | 1 | |
不完整的扫描数 | Incomplete Scans | 32-bit signed Integer | 1 | |
扫描线质量检验码 | QA_Scan_Flag | 8-bit unsigned Integer | nscans | |
象元质量检验码 | QA_Pixel_Flag | 16-bit unsigned Integer | nscans | |
起始行号 | Begin Line Number | 16-bit unsigned Integer | 1 | |
结束行号 | End Line Number | 16-bit unsigned Integer | 1 | |
起始象元号 | Begin Pixel Number | 16-bit unsigned Integer | 1 | |
结束象元号 | End Pixel Number | 16-bit unsigned Integer | 1 | |
地球椭球参考坐标系ID(WGS84) | Reference Ellipsoid Model ID | 8-bit signed char | 1 | |
日地距离比 | Earth/Sun Distance Ratio | 64-bit floating point | 1 | |
地球半径(m) | Earth Radius | 64-bit floating point | 1 | |
地球扁率 | Earth Oblateness | 64-bit floating point | 1 | |
地球偏心率 | Earth Eccentricity | 64-bit floating point | 1 | |
历元时间 | EpochTime | 64-bit floating point | 1 | |
半长轴(KM) | SemimajorAxis | 64-bit floating point | 1 | |
偏心率 | Eccentricity | 64-bit floating point | 1 | |
倾角(度) | OrbitalInclination | 64-bit floating point | 1 | |
升交点赤经(度) | AscendingNodeLongitude | 64-bit floating point | 1 | |
近地点角(度) | PerigeeArgument | 64-bit floating point | 1 | |
平近地点角(度) | MeanAnomaly | 64-bit floating point | 1 | |
轨道4个角点纬度 | Orbit Point Latitude | 32-bit floating point | 4 | |
轨道4个角点经度 | Orbit Point Longitude | 32-bit floating point | 4 | |
文件的附加说明(可以对文件的使用、创建人等说明) | AdditionalAnotation | 8-bit signed char | 不定长 | |
表5-5 FY3A扫描辐射计L1数据私有文件属性定义
描述 | 属性名称 | 数据类型 | 数量 |
产品格式版本号 | Product_Format_Ver | char | 16 |
时序出错线数 | Time_Error_Scans | uint16 | 1 |
帧计数出错线数 | Frame_Count_Error_Scans | uint16 | 1 |
帧同步出错线数 | Frame_Sync_error_scans | uint16 | 1 |
丢线数 | Lost_Scans | uint16 | 1 |
完成定标扫描线数 | Calibrated_Scans | uint16 | 1 |
完成定位扫描线数 | Geolocated_Scans | uint16 | 1 |
斜坡校准指示符 | Ramp_Cal_Indicators | uint8 | 1 |
反射通道定标系数 | RefSB_Cal_Coefficients | float32 | 7*2 |
反射通道太阳辐照度 | RefSB_Solar_Irradiance | float32 | 7 |
反射通道等效宽度 | RefSB_ Equivalent_Width | float32 | 7 |
反射通道有效波长 | RefSB_Effective_Wavelength | float32 | 7 |
发射通道中心波数 | Emmisive_Centroid_Wave_Number | float32 | 3 |
发射通道亮温订正系数 | Emmisive_BT_Coefficients | float32 | 3*2 |
发射前非线性订正系数 | Prelaunch_Nonlinear_Coefficients | float32 | 3*4 |
发射通道定标系数平均值 | Emissive_Coefficients_Ave | float32 | 3*2 |
发射通道定标系数标准差 | Emissive_Coefficients_Std | float32 | 3*2 |
表5-6 FY3A扫描辐射计L1数据科学数据集(SDS)定义
SDS 1. SDS名称 | 数据类型 | 维数 | 白天数据量(MB) | 夜间数据量(MB) |
EV_RefSB 太阳反射通道地球观测数据 | uint16 | [7, nscans,2048] | 51.6 | 0 |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 32767 | |
FillValue | int32 | 1 | 65535 | |
long_name | String | 1 | "Earth View Reflective Solar Bands Scaled Integers" | |
band_names | String | 1 | "1, 2, 6, 7 , 8, 9, 10" | |
Slope | float32 | 7 | 1.0 | |
Intercept | float32 | 7 | 0.0 | |
SDS 2. SDS名称 | 数据类型 | 维数 | 白天数据量(MB) | 夜间数据量(MB) |
EV_Emissive 发射通道地球观测原始计数值数据 | uint16 | [3, nscans,2048] | 22.1 | 22.1 |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | uint16 | 2 | 0, 32767 | |
FillValue | uint16 | 1 | 65535 | |
long_name | string | 1 | "Earth View Emissive Bands Scaled Integers" | |
band_names | string | 1 | "3, 4, 5" | |
Slope | float32 | 3 | 1.0 | |
Intercept | float32 | 3 | 0.0 | |
radiance_units | string | 1 | "Milliwatts/m^2/cm^-1/steradian" | |
SDS 3. SDS名称 | 数据类型 | 维数 | 白天数据量(MB) | 夜间数据量(MB) |
Emissive_Radiance_Scales 发射通道定标系数 | float32 | [nscans, 3] | 0.03 | 0.03 |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
long_name | string | 1 | "Earth View Emissive Radiance Scales" | |
band_names | string | 1 | "3, 4, 5" | |
valid_range | float64 | 2 | ||
FillValue | float64 | 1 | ||
Slope | float64 | 1 | 1.0 | |
Intercept | float64 | 1 | 0.0 | |
SDS 4. SDS名称 | 数据类型 | 维数 | 白天数据量(MB) | 夜间数据量(MB) |
Emissive_Radiance_Offsets 发射通道定标偏移量 | float32 | [nscans, 3] | 0.03 | 0.03 |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
long_name | string | 1 | "Earth View Emissive Radiance Offsets" | |
band_names | string | 1 | "3, 4, 5" | |
valid_range | float64 | 2 | ||
FillValue | float64 | 1 | ||
Slope | float64 | 1 | 1.0 | |
Intercept | float64 | 1 | 0.0 | |
SDS 5. SDS名称 | 数据类型 | 维数 | 白天数据量(MB) | 夜间数据量(MB) |
Longitude 经度 | float32 | [nscans, 2048] | 14.8 | 14.8 |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "degrees" | |
valid_range | float64 | 2 | -180.0, 180.0 | |
FillValue | float64 | 1 | -999.9 | |
long_name | string | 1 | "Longitude" | |
Slope | float64 | 1 | 1.0 | |
Intercept | float64 | 1 | 0.0 | |
SDS 6. SDS名称 | 数据类型 | 维数 | 白天数据量(MB) | 夜间数据量(MB) |
Latitude 纬度 | float32 | [nscans,2048] | 14.8 | 14.8 |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "degrees" | |
valid_range | float64 | 2 | -90, 90 | |
FillValue | float64 | 1 | -999.9 | |
long_name | string | 1 | "Latitude" | |
Slope | float64 | 1 | 1.0 | |
Intercept | float64 | 1 | 0.0 | |
SDS 7. SDS名称 | 数据类型 | 维数 | 数据量(MB) | |
SensorZenith 传感器天顶角 | int16 | [nscans, 2048] | 7.4 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "degrees" | |
valid_range | int32 | 2 | 0, 1800 | |
FillValue | int32 | 1 | 7FFF | |
long_name | string | 1 | " Sensor Zenith Angle" | |
Slope | float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
SDS 8. SDS名称 | 数据类型 | 维数 | 数据量 | |
SensorAzimuth 传感器方位角 | int16 | [nscans, 2048] | 7.4 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "degrees" | |
valid_range | int32 | 2 | 0, 360 | |
FillValue | int32 | 1 | 9999 | |
long_name | string | 1 | "Sensor Azimuth Angle" | |
Slope | float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
SDS 9. SDS名称 | 数据类型 | 维数 | 数据量 | |
SolarZenith 太阳天顶角 | int16 | [nscans, 2048] | 7.4 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "degrees" | |
valid_range | int32 | 2 | 0,1800 | |
FillValue | int32 | 1 | 7FFF | |
long_name | string | 1 | "Solar Zenith Angle" | |
Slope | float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
SDS 10. SDS名称 | 数据类型 | 维数 | 数据量 | |
SolarAzimuth 太阳方位角 | int16 | [nscans, 2048] | 7.4 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "degrees" | |
valid_range | int32 | 2 | 0, 360 | |
FillValue | int32 | 1 | 9999 | |
long_name | string | 1 | "Solar Azimuth Angle" | |
Slope | float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
SDS 11. SDS名称 | 数据类型 | 维数 | 数据量 | |
LandSeaMask 海陆模板数据 | uint8 | [ nscans,2048] | 3.7 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0,7 | |
FillValue | int32 | 1 | 255 | |
long_name | string | 1 | "Land Sea Mask" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0.0 | |
SDS 12. SDS名称 | 数据类型 | 维数 | 数据量 | |
Height 海拔高度 | int16 | [ nscans,2048] | 7.4 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "meters" | |
valid_range | int32 | 2 | -30000, 30000 | |
FillValue | int32 | 1 | 32767 | |
long_name | string | 1 | "Height" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0.0 | |
SDS 13. SDS名称 | 数据类型 | 维数 | 数据量 | |
LandCover 陆地覆盖类型 | uint8 | [nscans,2048] | 3.7 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 16 | |
FillValue | int32 | 1 | 255 | |
long_name | string | 1 | " Land Cover " | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0.0 | |
SDS 14. SDS名称 | 数据类型 | 维数 | 数据量 | |
QA 质量信息 | uint32 | [nscans] | 14.8 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | uint32 | 2 | 0, 0xffffffff | |
FillValue | uint32 | 1 | ||
long_name | string | 1 | " QA" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0.0 | |
SDS 15. SDS名称 | 数据类型 | 维数 | 数据量 | |
Packet_Count 包序列计数 | uint16 | [nscans] | 0.004 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 16383 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | " Packet Count " | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 16. SDS名称 | 数据类型 | 维数 | 数据量 | |
Day_Count 天计数 | uint16 | [nscans] | 0.004 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 4095 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | " Day Count" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 17. SDS名称 | 数据类型 | 维数 | 数据量 | |
Msec_Count 天毫秒级计数 | uint32 | [nscans] | 0.008 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | uint32 | 2 | 0, 86399999 | |
FillValue | uint32 | 1 | 0xffffffff | |
long_name | string | 1 | " Millisecond Count" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 18. SDS名称 | 数据类型 | 维数 | 数据量 | |
Day_Night_Flag 白天/夜晚模式标志 | uint16 | [nscans] | 0.004 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1023 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | " Day Night Flag" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0.0 | |
SDS 19. SDS名称 | 数据类型 | 维数 | 数据量 | |
EVS_Orb_Pos 对地观测起始时刻ECR轨道位置(x,y,z) | float64 | [nscans,3] | ||
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "meter" | |
valid_range | float64 | 2 | -7300000 , +7300000 | |
FillValue | float64 | 1 | 4294967295 | |
long_name | string | 1 | ‘Orbit Position Data (x,y,z) when Earth View Start’ | |
Slope | float64 | 1 | 1.0 | |
Intercept | float64 | 1 | 0.0 | |
SDS 20. SDS名称 | 数据类型 | 维数 | 数据量 | |
EVS_Orb_Vel 对地观测起始时刻ECR轨道速度 | float64 | [nscans,3] | 0.004 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "m/s" | |
valid_range | float64 | 2 | -7600,7600 | |
FillValue | float64 | 1 | 65535 | |
long_name | string | 1 | ‘Orbit Velocity Data when Earth View Start(u,v,w)’ | |
Slope | float64 | 1 | 1.0 | |
Intercept | float64 | 1 | 0.0 | |
SDS 21. SDS名称 | 数据类型 | 维数 | 数据量 | |
EVS_Attitude_Angles 对地观测起始时刻姿态角(φ,θ,ψ) | float64 | [nscans,3] | 0.004 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "radians" | |
valid_range | float64 | 2 | -0.01,0.01 | |
FillValue | float64 | 1 | 65535 | |
long_name | string | 1 | ‘Attitude Data when Earth View Start(φ,θ,ψ)’ | |
Slope | float64 | 1 | 1.0 | |
Intercept | float64 | 1 | 0.0 | |
表5-7 FY3A扫描辐射计L1 OBC数据概况表
产品名称 | FY3A扫描辐射计L1 OBC数据 |
FY3A VIRR Level1 OBC Product | |
物理意义(中英文) | 扫描辐射计10个可见光和红外通道测值,经辐射定标和地球定位处理后生成的数据文件,另含黑体PRT温度、VIRR对黑体的扫描及其它工程遥测数据。 |
The geolocated and calibrated observations from VIRR instrument with 10 channels in visible and infrared spectral region and ground resolution of 1km at nadir as well as the output of the MERSI when viewing the housing blackbody target, space and other telemetry data are included | |
用途(中英文) | 主要用于辐射定标算法试验和仪器性能分析 |
It is mainly used for radiometric calibration algorithm study and instrument status analysis. | |
用户 | FY3产品预处理定标系统 |
表5-8 FY3A扫描辐射计L1 OBC数据基本信息表
产品名称:FY3A扫描辐射计L1 OBC数据 | ||
文件名约定: FY3A_VIRRX_GBAL_L1_YYYYMMDD_HHmm_OBCXX_MS.HDF | ||
栏目 | 值 | 备注 |
卫星名 | FY3A | 参考“附件2:风云三号应用数据文件名命名规范”4.3 |
仪器名称 | VIRRX | |
数据区域类型 | GBAL | |
数据级别 | L1 | |
分辨率 | ||
数据格式名称 | HDF | |
分块方式 | 块/5分钟 | |
数据量 | ~3M | |
表5-9 FY3A扫描辐射计L1 OBC数据HDF结构
L1全局文件属性 | ||||
私有文件属性 | 私有文件属性名 | 私有文件属性中文名 | ||
18 | Product_Format_Ver | Product_Format_Ver | 产品格式版本号 | |
19 | Time_Error_Scans | Time_Error_Scans | 时序出错线数 | |
20 | Frame_Count_Error_Scans | Frame_Count_Error_Scans | 帧计数出错线数 | |
21 | Frame_Sync_Error_Scans | Frame_Sync_Error_Scans | 帧同步出错线数 | |
22 | Lost_Scans | Lost_Scans | 丢线数 | |
23 | Calibrated_Scans | Calibrated_Scans | 完成定标扫描线数 | |
24 | Geolocated_Scans | Geolocated_Scans | 完成定位扫描线数 | |
25 | Ramp_Cal_Indicators | Ramp_Cal_Indicators | 斜坡校准指示符 | |
26 | RefSB_Cal_Coefficients | RefSB_Cal_Coefficients | 反射通道定标系数 | |
27 | RefSB_Solar_Irradiance | RefSB_Solar_Irradiance | 反射通道太阳辐照度 | |
28 | RefSB_Equivalent_Width | RefSB_ Equivalent_Width | 反射通道等效宽度 | |
29 | RefSB_Effective_Wavelength | RefSB_Effective_Wavelength | 反射通道有效波长 | |
30 | Emmisive_Centroid_Wave_Number | Emmisive_Centroid_Wave_Number | 发射通道中心波数 | |
31 | Emmisive_BT_Coefficients | Emmisive_BT_Coefficients | 发射通道亮温订正系数 | |
32 | Prelaunch_Nonlinear_Coefficients | Prelaunch_Nonlinear_Coefficients | 发射前非线性订正系数 | |
33 | Emissive_Coefficients_Ave | Emissive_Coefficients_Ave | 发射通道定标系数平均值 | |
34 | Emissive_Coefficients_Std | Emissive_Coefficients_Std | 发射通道定标系数标准差 | |
35 | Ramp_Calibration_Coefficients | Ramp_Calibration_Coefficients | 斜坡校准处理系数 | |
36 | PRT_Count_Stat | PRT_Count_Stat | PRT计数值统计 | |
37 | Blackbody_View_Stat | Blackbody_View_Stat | 黑体观测值统计 | |
38 | Space_View_Stat | Space_View_Stat | 外空观测值统计 | |
39 | Radiator_Temperature_Stat | Radiator_Temperature_Stat | 辐冷器温度统计 | |
40 | Radiator_Voltage_Stat | Radiator_Voltage_Stat | 辐冷器温控电压统计 | |
41 | PRT_Temperature_Coefficients | PRT_Temperature_Coefficients | PRT温度转换系数 | |
42 | Blackbody_Temperature_Coefficients | Blackbody_Temperature_Coefficients | 黑体温度转换系数 | |
43 | PRT_Weighting_Factors | PRT_Weighting_Factors | PRT权重系数 | |
44 | Radiator_Temperature_Coefficients | Radiator_Temperature_Coefficients | 辐冷器温度转换系数 | |
45 | Radiator_Voltage_Coefficients | Radiator_Voltage_Coefficients | 辐冷器电压转换系数 | |
46 | Space_Radiance | Space_Radiance | 发射通道冷空辐射率 | |
科学数据集 | 科学数据集名(英文) | 科学数据集中文名 | ||
SDS 22 | Emissive_Radiance_Scales SDS | Emissive_Radiance_Scales | 发射通道定标系数 | |
SDS 23 | Emissive_Radiance_Offsets SDS | Emissive_Radiance_Offsets | 发射通道定标偏移量 | |
SDS 24 | QA SDS | QA | 质量信息 | |
SDS 25 | Packet_Flag_Version SDS | Packet_Flag_Version | 包标识版本号 | |
SDS 26 | Packet_Flag_Type SDS | Packet_Flag_Type | 包类型指示符 | |
SDS 27 | Packet_Flag_Sub_Header SDS | Packet_Flag_Sub_Header | 包副导头标记 | |
SDS 28 | Packet_Flag_Process SDS | Packet_Flag_Process | 过程标识符 | |
SDS 29 | Packet_Group_Flag SDS | Packet_Group_Flag | 分组标志 | |
SDS 30 | Packet_Count SDS | Packet_Count | 包序列计数 | |
SDS 31 | Packet_Length SDS | Packet_Length | 源包长度 | |
SDS 32 | Day_Count SDS | Day_Count | 天计数 | |
SDS 33 | Msec_Count SDS | Msec_Count | 天毫秒级计数 | |
SDS 34 | Frame_Header SDS | Frame_Header | 帧头标志 | |
SDS 35 | Sat_Flag SDS | Sat_Flag | 卫星标志 | |
SDS 36 | Backup_Flag SDS | Backup_Flag | 备份标志 | |
SDS 37 | Sync_Flag SDS | Sync_Flag | 同步标志 | |
SDS 38 | Day_Night_Flag SDS | Day_Night_Flag | 白天/夜晚模式标志 | |
SDS 39 | Gain_Code SDS | Gain_Code | 增益码 | |
SDS 40 | Blackbody_View SDS | Blackbody_View | 黑体观测值 | |
SDS 41 | Space_View SDS | Space_View | 空间观测值 | |
SDS 42 | Self_Adjust SDS | Self_Adjust | 自校正码 | |
SDS 43 | Ramp_Count SDS | Ramp_Count | 斜坡校准码 | |
SDS 44 | Radiator1_Count SDS | Radiator1_Count | 一级辐冷器温度计数值 | |
SDS 45 | Radiator2_Count SDS | Radiator2_Count | 二级辐冷器温度计数值 | |
SDS 46 | Radiator_Voltage SDS | Radiator_Voltage | 辐冷器温控电压计数值 | |
SDS 47 | PRT1_Count SDS | PRT1_Count | PRT1测温计数值 | |
SDS 48 | PRT2_Count SDS | PRT2_Count | PRT2测温计数值 | |
SDS 49 | EVC_Lon_Lat SDS | EVC_Lon_Lat | 1KM星下点经纬度 | |
SDS 50 | EVC_Azi_Zen SDS | EVC_Azi_Zen | 1KM星下点时刻太阳相对卫星角度(方位角\天顶角) | |
表5-10 FY3A扫描辐射计L1 OBC数据全局文件属性定义
描述 | 属性名称 | 数据类型 | 数量 | 值 |
卫星名称(如FY-3A等) | Satellite Name | 8-bit signed char | 不定长 | FY-3A |
仪器名称 | Sensor Name | 8-bit signed char | 不定长 | Visible and InfraRed Radiometer |
传感器代码(如VIRR) | Sensor Identification Code | 8-bit signed char | 不定长 | VIRR |
数据集名称(如MPT) | Dataset Name | 8-bit signed char | 不定长 | Global VIRR Data |
文件名称 | File Name | 8-bit signed char | 不定长 | |
文件别名 | File Alias Name | 8-bit signed char | 不定长 | |
产品生成地(NSMC) | Responser | 8-bit signed char | 不定长 | |
处理软件版本号(如V1.0.0) | Version Of Software | 8-bit signed char | 不定长 | V 1.0.0 |
处理软件更新日期 | Software Revision Date | 8-bit signed char | 不定长 | |
定标系数版本号 | Version Of Coefficient Index | 8-bit signed char | 不定长 | |
定标系数更新日期 | Coefficient Index Revision Date | 8-bit signed char | 不定长 | |
数据观测开始日期(包括年月日) | Observing Beginning Date | 8-bit signed char | 不定长 | |
数据观测开始时间(包括时分秒毫秒) | Observing Beginning Time | 8-bit signed char | 不定长 | |
数据观测结束日期(包括年月日) | Observing Ending Date | 8-bit signed char | 不定长 | |
数据观测结束时间(包括时分秒毫秒) | Observing Ending Time | 8-bit signed char | 不定长 | |
数据创建日期(包括年月日) | Data Creating Date | 8-bit signed char | 不定长 | |
数据创建时间(包括时分秒毫秒) | Data Creating Time | 8-bit signed char | 不定长 | |
白天夜间标志 | Day Or Night Flag | 8-bit signed char | 不定长 | |
轨道号 | Orbit Number | 32-bit unsigned Integer | 1 | |
轨道周期 | Orbit Period | 16-bit unsigned Integer | 1 | |
轨道方向 | Orbit Direction | 8-bit signed char | 不定长 | |
数据质量标记(1-5级) | Data Quality | 8-bit unsigned Integer | 1 | |
总扫描数 | Number Of Scans | 32-bit signed Integer | 1 | |
白天模式扫描数 | Number Of Day mode scans | 32-bit signed Integer | 1 | |
晚上模式扫描数 | Number of Night mode scans | 32-bit signed Integer | 1 | |
不完整的扫描数 | Incomplete Scans | 32-bit signed Integer | 1 | |
扫描线质量检验码 | QA_Scan_Flag | 8-bit unsigned Integer | nscans | |
象元质量检验码 | QA_Pixel_Flag | 16-bit unsigned Integer | nscans | |
起始行号 | Begin Line Number | 16-bit unsigned Integer | 1 | |
结束行号 | End Line Number | 16-bit unsigned Integer | 1 | |
起始象元号 | Begin Pixel Number | 16-bit unsigned Integer | 1 | |
结束象元号 | End Pixel Number | 16-bit unsigned Integer | 1 | |
地球椭球参考坐标系ID(WGS84) | Reference Ellipsoid Model ID | 8-bit signed char | 1 | |
日地距离比 | Earth/Sun Distance Ratio | 64-bit floating point | 1 | |
地球半径(m) | Earth Radius | 64-bit floating point | 1 | |
地球扁率 | Earth Oblateness | 64-bit floating point | 1 | |
地球偏心率 | Earth Eccentricity | 64-bit floating point | 1 | |
历元时间 | EpochTime | 64-bit floating point | 1 | |
半长轴(KM) | SemimajorAxis | 64-bit floating point | 1 | |
偏心率 | Eccentricity | 64-bit floating point | 1 | |
倾角(度) | OrbitalInclination | 64-bit floating point | 1 | |
升交点赤经(度) | AscendingNodeLongitude | 64-bit floating point | 1 | |
近地点角(度) | PerigeeArgument | 64-bit floating point | 1 | |
平近地点角(度) | MeanAnomaly | 64-bit floating point | 1 | |
轨道4个角点纬度 | Orbit Point Latitude | 32-bit floating point | 4 | |
轨道4个角点经度 | Orbit Point Longitude | 32-bit floating point | 4 | |
文件的附加说明(可以对文件的使用、创建人等说明) | AdditionalAnotation | 8-bit signed char | 不定长 | |
表5-11 FY3A扫描辐射计L1 OBC数据私有文件属性定义
描述 | 属性名称 | 数据类型 | 数量 |
产品格式号 | Product_Format_Ver | char | 16 |
时序出错线数 | Time_Error_Scans | uint16 | 1 |
帧计数出错线数 | Frame_Count_Error_Scans | uint16 | 1 |
帧同步出错线数 | Frame_Sync_error_scans | uint16 | 1 |
丢线数 | Lost_Scans | uint16 | 1 |
完成定标扫描线数 | Calibrated_Scans | uint16 | 1 |
完成定位扫描线数 | Geolocated_Scans | uint16 | 1 |
斜坡校准指示符 | Ramp_Cal_Indicators | uint8 | 1 |
反射通道定标系数 | RefSB_Cal_Coefficients | float32 | 7*2 |
反射通道太阳辐照度 | RefSB_Solar_Irradiance | float32 | 7 |
反射通道等效宽度 | RefSB_ Equivalent_Width | float32 | 7 |
反射通道有效波长 | RefSB_Effective_Wavelength | float32 | 7 |
发射通道中心波数 | Emmisive_Centroid_Wave_Number | float32 | 3 |
发射通道亮温订正系数 | Emmisive_BT_Coefficients | float32 | 3*2 |
发射前非线性订正系数 | Prelaunch_Nonlinear_Coefficients | float32 | 3*4 |
发射通道定标系数平均值 | Emissive_Coefficients_Ave | float32 | 3*2 |
发射通道定标系数标准差 | Emissive_Coefficients_Std | float32 | 3*2 |
斜坡校准处理系数 | Ramp_Calibration_Coefficients | float32 | 10*2 |
PRT计数值统计 | PRT_Count_Stat | float32 | 2*4 |
黑体观测值统计 | Blackbody_View_Stat | float32 | 10*4 |
外空观测值统计 | Space_View_Stat | float32 | 10*4 |
辐冷器温度统计 | Radiator_Temperature_Stat | float32 | 2*4 |
辐冷器温控电压统计 | Radiator_Voltage_Stat | float32 | 4 |
PRT温度转换系数 | PRT_Temperature_Coefficients | float32 | 2*6 |
黑体温度转换系数 | Blackbody_Temperature_Coefficients | float32 | 3*2*6 |
PRT权重系数 | PRT_Weighting_Factors | float32 | 2 |
辐冷器温度转换系数 | Radiator_Temperature_Coefficients | float32 | 2*11 |
辐冷器电压转换系数 | Radiator_Voltage_Coefficients | float32 | 1 |
发射通道冷空辐射率 | Space_Radiance | float32 | 3 |
表5-12 FY3A扫描辐射计L1 OBC数据科学数据集(SDS)定义
SDS 22. SDS名称 | 数据类型 | 维数 | 白天数据量(MB) | 夜间数据量(MB) |
Emissive_Radiance_Scales 发射通道定标系数 | float32 | [nscans ,3] | 0.03 | 0.03 |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
long_name | string | 1 | "Earth View Emissive Radiance Scales" | |
band_names | string | 1 | "3, 4, 5" | |
valid_range | float64 | 2 | ||
FillValue | float64 | 1 | ||
Slope | float64 | 1 | 1 | |
Intercept | float64 | 1 | 0 | |
SDS 23. SDS名称 | 数据类型 | 维数 | 白天数据量(MB) | 夜间数据量(MB) |
Emissive_Radiance_Offsets 发射通道定标偏移量 | float32 | [nscans ,3] | 0.03 | 0.03 |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
long_name | string | 1 | "Earth View Emissive Radiance Offsets" | |
band_names | string | 1 | "3, 4, 5" | |
valid_range | float64 | 2 | ||
FillValue | float64 | 1 | ||
Slope | float64 | 1 | 1 | |
Intercept | float64 | 1 | 0 | |
SDS 24. SDS名称 | 数据类型 | 维数 | 数据量 | |
QA 质量信息 | uint32 | [nscans] | 14.8 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | uint32 | 2 | ||
FillValue | uint32 | 1 | ||
long_name | string | 1 | " QA" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0.0 | |
SDS 25. SDS名称 | 数据类型 | 维数 | 数据量 | |
Packet_Flag_Version 包标识版本号 | uint8 | [nscans] | 0.002 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 7 | |
FillValue | int32 | 1 | 255 | |
long_name | string | 1 | " Packet Flag Version " | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0.0 | |
SDS 26. SDS名称 | 数据类型 | 维数 | 数据量 | |
Packet_Flag_Type 包类型指示符 | uint8 | [ nscans] | 0.002 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1 | |
FillValue | int32 | 1 | 255 | |
long_name | string | 1 | " Packet Flag Type " | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 27. SDS名称 | 数据类型 | 维数 | 数据量 | |
Packet_Flag_Sub_Header 包副导头标记 | uint8 | [ nscans] | 0.002 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1 | |
FillValue | int32 | 1 | 2555 | |
long_name | string | 1 | " Packet Flag Sub Header" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 28. SDS名称 | 数据类型 | 维数 | 数据量 | |
Packet_Flag_Process 过程标识符 | uint16 | [ nscans] | 0.004 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 2047 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | " Packet Flag Process " | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 29. SDS名称 | 数据类型 | 维数 | 数据量 | |
Packet_Group_Flag 分组标志 | uint8 | [ nscans] | 0.002 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 3 | |
FillValue | int32 | 1 | 255 | |
long_name | string | 1 | " Packet Group Flag " | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 30. SDS名称 | 数据类型 | 维数 | 数据量 | |
Packet_Count 包序列计数 | uint16 | [ nscans] | 0.004 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 16383 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | " Packet Count " | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 31. SDS名称 | 数据类型 | 维数 | 数据量 | |
Packet_Length 源包长度 | uint16 | [ nscans] | 0.004 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 65535 | |
FillValue | int32 | 1 | ||
long_name | string | 1 | " Packet Length" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 32. SDS名称 | 数据类型 | 维数 | 数据量 | |
Day_Count 天计数 | uint16 | [ nscans] | 0.004 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 4095 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | " Day Count" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 33. SDS名称 | 数据类型 | 维数 | 数据量 | |
Msec_Count 天毫秒级计数 | uint32 | [ nscans] | 0.008 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | uint32 | 2 | 0, 86399999 | |
FillValue | uint32 | 1 | 0xffffffff | |
long_name | string | 1 | " Millisecond Count" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 34. SDS名称 | 数据类型 | 维数 | 数据量 | |
Frame_Header 帧头标志 | uint8 | [ nscans,8] | 0.016 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 255 | |
FillValue | int32 | 1 | ||
long_name | string | 1 | " Frame Header" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 35. SDS名称 | 数据类型 | 维数 | 数据量 | |
Sat_Flag 卫星标志 | uint8 | [ nscans] | 0.002 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 255 | |
FillValue | int32 | 1 | ||
long_name | string | 1 | " Sat Flag" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 36. SDS名称 | 数据类型 | 维数 | 数据量 | |
Backup_Flag 备份标志 | uint8 | [ nscans] | 0.002 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 255 | |
FillValue | int32 | 1 | ||
long_name | string | 1 | " Backup Flag" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 37. SDS名称 | 数据类型 | 维数 | 数据量 | |
Sync_Flag 同步标志 | uint8 | [ nscans] | 0.002 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 255 | |
FillValue | int32 | 1 | ||
long_name | string | 1 | " Syn Flag" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 38. SDS名称 | 数据类型 | 维数 | 数据量 | |
Day_Night_Flag 白天/夜晚模式标志 | uint16 | [ nscans] | 0.004 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1023 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | " Day Night Flag" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0.0 | |
SDS 39. SDS名称 | 数据类型 | 维数 | 数据量 | |
Gain_Code 增益码 | uint8 | [ nscans,3] | 0.006 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 7 | |
FillValue | int32 | 1 | 255 | |
long_name | string | 1 | " Gain Code" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 40. SDS名称 | 数据类型 | 维数 | 数据量 | |
Blackbody_View 黑体观测值 | uint16 | [10, nscans,6] | 0.22 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1023 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | " Blackbody View " | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 41. SDS名称 | 数据类型 | 维数 | 数据量 | |
Space_View 空间观测值 | uint16 | [10, nscans,10] | 0.36 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1023 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | " Space View" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 42. SDS名称 | 数据类型 | 维数 | 数据量 | |
Self_Adjust 自校正码 | uint16 | [10, nscans,16] | 0.58 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1023 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | " Self Adjust" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 43. SDS名称 | 数据类型 | 维数 | 数据量 | |
Ramp_Count 斜坡校准码 | uint16 | [nscans,10] | 0.036 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1023 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | " Ramp Count" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 44. SDS名称 | 数据类型 | 维数 | 数据量 | |
Radiator1_Count 一级辐冷器温度计数值 | uint16 | [nscans,2] | 0.007 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1023 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | "Radiator1 Count" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 45. SDS名称 | 数据类型 | 维数 | 数据量 | |
Radiator2_Count 一级辐冷器温度计数值 | uint16 | [nscans,2] | 0.007 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1023 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | "Radiator2 Count" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 46. SDS名称 | 数据类型 | 维数 | 数据量 | |
Radiator_Voltage 辐冷器温控电压计数值 | uint16 | [nscans,2] | 0.007 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1023 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | "Radiator Voltage" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 47. SDS名称 | 数据类型 | 维数 | 数据量 | |
PRT1_Count PRT1测温计数值 | uint16 | [nscans,2] | 0.007 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1023 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | " PRT1 Count" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 48. SDS名称 | 数据类型 | 维数 | 数据量 | |
PRT2_Count PRT2测温计数值 | uint16 | [nscans,2] | 0.007 | |
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "none" | |
valid_range | int32 | 2 | 0, 1023 | |
FillValue | int32 | 1 | 65535 | |
long_name | string | 1 | "PRT2 Count" | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0 | |
SDS 49. SDS名称 | 数据类型 | 维数 | 数据量 | |
EVC_Lon_Lat 1KM星下点经纬度 | float32 | [nscans,2] | ||
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "degrees" | |
valid_range | float64 | 2 | -180.0, 180.0 | |
_FillValue | float64 | 1 | -999.9 | |
intercept | float64 | 1 | 0.0 | |
slope | float64 | 1 | 1.0 | |
long_name | string | 1 | "EVC Longitude and Lattitude" | |
SDS 50. SDS名称 | 数据类型 | 维数 | 数据量 | |
EVC_Azi_Zen 1KM星下点时刻太阳相对卫星角度(方位角\天顶角) | int16 | [nscans,2] | ||
SDS属性名 | 数据类型 | 数量 | 值 | |
units | string | 1 | "degrees" | |
valid_range | int32 | 2 | -18000, 18000 | |
_FillValue | int32 | 1 | -32767 | |
intercept | float32 | 3 | 0.0 | |
slope | float32 | 3 | 0.01 | |
long_name | string | 1 | "EVC Azimuth and Zenith Angle" | |
表5-13 FY-3A中分辨率光谱成像仪L1数据(250m)概况表
产品名称 | FY-3A中分辨率光谱成像仪L1数据(250m) |
FY-3A MERSI Level 1 250m Earth View Data Products | |
物理意义(中英文) | 中分辨率光谱成像仪5个可见光和红外通道原分辨率(250m)测值,经辐射定标和地球定位处理后生成的数据文件 |
The geolocated and calibrated observations from the 5 channels (VI and IR) of MERSI instrument with ground resolution of 250m at nadir are included. | |
用途(中英文) | 主要用于生成真彩色图象产品和植被产品等 |
It is mainly used for producing truth color imagery, sea ice, vegetation index etc.. | |
用户 | 图象产品和地表遥感产品生成用户 Users of Imagery products and surface products generation |
表5-14 FY-3A中分辨率光谱成像仪L1数据(250m)基本信息表
产品名称:FY-3A中分辨率光谱成像仪L1数据(250m) | ||
文件名约定:FY3A_MERSI_GBAL_L1_YYYYMMDD_HHmm_0250m_MS.HDF | ||
栏目 | 值 | 备注 |
卫星名 | FY3A | 参考“附件2:风云三号应用数据文件名命名规范”4.3 |
仪器名称 | MERSI | |
数据区域类型 | GBAL | |
数据级别 | L1 | |
分辨率 | 250m | |
数据格式名称 | HDF | |
分块方式 | 块/5分钟 | |
数据量 | 704. 512M | |
表5-15 FY-3A中分辨率光谱成像仪L1数据(250m)HDF结构
L1全局文件属性 | ||||
私有文件属性 | 私有文件属性名 | 私有文件属性中文名 | ||
1 | EQUATORCROSSINGLONGITUDE | EQUATORCROSSINGLONGITUDE | 交叉赤道经度 | |
2 | EQUATORCROSSINGDATE | EQUATORCROSSINGDATE | 交叉赤道日期 | |
3 | EQUATORCROSSINGTIME | EQUATORCROSSINGTIME | 交叉赤道时间 | |
4 | Max Total Frames | Max Total Frames | 最大总帧 | |
5 | Max Earth Frames | Max Earth Frames | 最大地球采样点 | |
6 | Max VOC Frames | Max VOC Frames | 最大VOC采样点 | |
7 | Max BB Frames | Max BB Frames | 最大黑体采样点 | |
8 | Max SV Frames | Max SV Frames | 最大空间采样点 | |
9 | Incomplete Scans | Incomplete Scans | 不完整的扫描数 | |
10 | Missing Packets | Missing Packets | 缺帧数 | |
11 | Discarded packets | Discarded packets | 抛弃帧数 | |
12 | Scan number | Scan number | 扫描号 | |
13 | Frame count arry | Frame count arry | 帧计数矩阵 | |
14 | Scan Type | Scan Type | 扫描类型 | |
15 | VOC start time | VOC start time | VOC起始时间 | |
16 | BB start time | BB start time | BB起始时间 | |
17 | SV start time | SV start time | SV起始时间 | |
18 | EV start time | EV start time | EV起始时间 | |
19 | Packet scan count | Packet scan count | 包扫描计数 | |
20 | Engineering BB DN data | Engineering BB DN data | 黑体扫描数据 | |
21 | Telemetry BB PRT data | Telemetry BB PRT data | 遥测黑体数据 | |
22 | VOC frames | VOC frames | 积分球帧扫描 | |
23 | SV frames | SV frames | 空间扫描帧扫描 | |
24 | IR_Cal_Coeff | IR_Cal_Coeff | 红外通道定标系数 | |
25 | VIS_Cal_Coeff | VIS_Cal_Coeff | 可见光通道定标系数 | |
26 | TimeCode_QC_Flag | TimeCode_QC_Flag | 时间码质量检验码 | |
27 | Instrment_State_QC_Flag | Instrment_State_QC_Flag | 仪器状态质量检验码 | |
28 | IR_DN_Normalized_Coeff | IR_DN_Normalized_Coeff | 红外通道多探元修正系数 | |
29 | VIS_250m_DN_Normalized_Coeff | VIS_250m_DN_Normalized_Coeff | 250m反射通道多探元修正系数 | |
科学数据集 | 科学数据集名(英文) | 科学数据集中文名 | ||
SDS 1 | EV_250_RefSB_b1 | EV_250_RefSB_b1 | 地球观测250m太阳反射通道1 | |
SDS 2 | EV_250_RefSB_b2 | EV_250_RefSB_b2 | 地球观测250m太阳反射通道2 | |
SDS 3 | EV_250_RefSB_b3 | EV_250_RefSB_b3 | 地球观测250m太阳反射通道3 | |
SDS 4 | EV_250_RefSB_b4 | EV_250_RefSB_b4 | 地球观测250m太阳反射通道4 | |
SDS 5 | EV_250_ Emissive | EV_250_ Emissive | 地球观测250m热红外通道 | |
SDS 6 | Latitude | Latitude | 纬度 | |
SDS 7 | Longitude | Longitude | 经度 | |
SDS 8 | QA_Index | QA_Index | 质量信息码 | |
表5-16 FY-3A中分辨率光谱成像仪L1数据(250m)全局文件属性定义
描述 | 属性名称 | 数据类型 | 数量 | 值 |
卫星名称(如FY-3A等) | Satellite Name | 8-bit signed char | 不定长 | FY-3A |
仪器名称 | Sensor Name | 8-bit signed char | 不定长 | Medium Resolution Spectral Imager |
传感器代码(如VIRR) | Sensor Identification Code | 8-bit signed char | 不定长 | MERSI |
数据集名称(如MPT) | Dataset Name | 8-bit signed char | 不定长 | MERSI_EV_250m |
文件名称 | File Name | 8-bit signed char | 不定长 | |
文件别名 | File Alias Name | 8-bit signed char | 不定长 | |
产品生成地(NSMC) | Responser | 8-bit signed char | 不定长 | |
处理软件版本号(如V1.0.0) | Version Of Software | 8-bit signed char | 不定长 | V 1.0.1 |
处理软件更新日期 | Software Revision Date | 8-bit signed char | 不定长 | |
定标系数版本号 | Version Of Coefficient Index | 8-bit signed char | 不定长 | |
定标系数更新日期 | Coefficient Index Revision Date | 8-bit signed char | 不定长 | |
数据观测开始日期(包括年月日) | Observing Beginning Date | 8-bit signed char | 不定长 | |
数据观测开始时间(包括时分秒毫秒) | Observing Beginning Time | 8-bit signed char | 不定长 | |
数据观测结束日期(包括年月日) | Observing Ending Date | 8-bit signed char | 不定长 | |
数据观测结束时间(包括时分秒毫秒) | Observing Ending Time | 8-bit signed char | 不定长 | |
数据创建日期(包括年月日) | Data Creating Date | 8-bit signed char | 不定长 | |
数据创建时间(包括时分秒毫秒) | Data Creating Time | 8-bit signed char | 不定长 | |
白天夜间标志 | Day Or Night Flag | 8-bit signed char | 不定长 | |
轨道号 | Orbit Number | 32-bit unsigned Integer | 1 | |
轨道周期 | Orbit Period | 16-bit unsigned Integer | 1 | |
轨道方向 | Orbit Direction | 8-bit signed char | 1 | |
数据质量标记(1-5级) | Data Quality | 8-bit unsigned Integer | 1 | |
总扫描数 | Number Of Scans | 32-bit signed Integer | 1 | |
白天模式扫描数 | Number Of Day mode scans | 32-bit signed Integer | 1 | |
晚上模式扫描数 | Number of Night mode scans | 32-bit signed Integer | 1 | |
不完整的扫描数 | Incomplete Scans | 32-bit signed Integer | 1 | |
扫描线质量检验码 | QA_Scan_Flag | 8-bit unsigned Integer | 2000 | |
象元质量检验码 | QA_Pixel_Flag | 16-bit unsigned Integer | 2000 | |
起始行号 | Begin Line Number | 16-bit unsigned Integer | 1 | |
结束行号 | End Line Number | 16-bit unsigned Integer | 1 | |
起始象元号 | Begin Pixel Number | 16-bit unsigned Integer | 1 | |
结束象元号 | End Pixel Number | 16-bit unsigned Integer | 1 | |
地球椭球参考坐标系ID(WGS84) | Reference Ellipsoid Model ID | 8-bit signed char | 1 | |
日地距离比 | Earth/Sun Distance Ratio | 64-bit floating point | 1 | |
地球半径(m) | Earth Radius | 64-bit floating point | 1 | |
地球扁率 | Earth Oblateness | 64-bit floating point | 1 | |
地球偏心率 | Earth Eccentricity | 64-bit floating point | 1 | |
历元时间 | EpochTime | 64-bit floating point | 1 | |
半长轴(KM) | SemimajorAxis | 64-bit floating point | 1 | |
偏心率 | Eccentricity | 64-bit floating point | 1 | |
倾角(度) | OrbitalInclination | 64-bit floating point | 1 | |
升交点赤经(度) | AscendingNodeLongitude | 64-bit floating point | 1 | |
近地点角(度) | PerigeeArgument | 64-bit floating point | 1 | |
平近地点角(度) | MeanAnomaly | 64-bit floating point | 1 | |
轨道4个角点纬度 | Orbit Point Latitude | 32-bit floating point | 4 | |
轨道4个角点经度 | Orbit Point Longitude | 32-bit floating point | 4 | |
文件的附加说明 | AdditionalAnotation | 8-bit signed char | 不定长 | |
表5-17 FY-3A中分辨率光谱成像仪L1数据(250m)私有文件属性定义
描述 | 属性名称 | 数据类型 | 数量/有效范围 | ||||
交叉赤道经度 | EQUATORCROSSINGLONGITUDE | Float64 | -180.000—180.000 | ||||
交叉赤道日期 | EQUATORCROSSINGDATE | String | YYYY-MM-DD | ||||
交叉赤道时间 | EQUATORCROSSINGTIME | String | HH:MM:SS.SSSSSS | ||||
最大总帧 | Max Total Frames | Int32 | 1/(0,200) | ||||
最大地球采样点 | Max Earth Frames | Int32 | 1/2048 | ||||
最大VOC采样点 | Max VOC Frames | Int32 | 1/24 | ||||
最大黑体采样点 | Max BB Frames | Int32 | 1/24 | ||||
最大空间采样点 | Max SV Frames | Int32 | 1/24 | ||||
不完整的扫描数 | Incomplete Scans | Int32 | 1/ | ||||
缺帧数 | Missing Packets | Int32 | 2000/ | ||||
抛弃帧数 | Discarded packets | Int32 | 2000/ | ||||
扫描号 | Scan number | Int32 | 2000/ | ||||
帧计数矩阵 | Frame count arry | Int32 | 200/ | ||||
扫描类型 | Scan Type | uint8 | 200/ | ||||
VOC起始时间 | VOC start time | Float64 | 200/ | ||||
BB起始时间 | BB start time | Float64 | 200/ | ||||
SV起始时间 | SV start time | Float64 | 200/ | ||||
EV起始时间 | EV start time | Float64 | 200/ | ||||
包扫描计数 | Packet scan count | Int32 | 2000/ | ||||
黑体扫描数据 | Engineering BB data | float32 | 2000/ | ||||
遥测黑体数据 | Telemetry BB PRT data | float32 | 2000/ | ||||
积分球帧扫描 | VOC frames | FLOAT32 | 2000/ | ||||
空间扫描帧扫描 | SV frames | FLOAT32 | 2000/ | ||||
红外通道定标系数 | IR_Cal_Coeff | float64 | [200,4]/ | ||||
可见光通道定标系数 | VIS_Cal_Coeff | float64 | [4,3]/ | ||||
时间码质量检验码 | TimeCode_QC_Flag | uint8 | 200/ | ||||
仪器状态质量检验码 | Instrment_State_QC_Flag | Uint32 | 200/ | ||||
红外通道多探元修正系数 | IR_DN_Normalized_Coeff | Float32 | [8000,2]/ | ||||
250m反射通道多探元修正系数 | VIS_250m_DN_Normalized_Coeff | Float32 | [4,40,2]/ | ||||
表5-18 FY-3A中分辨率光谱成像仪L1数据(250m)科学数据集(SDS)定义
SDS 1. SDS Name | Type | Dimensions | Data Size |
EV_250_RefSB_b1 | uint16 | [2000*4, 8192] | 131.072 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 4 | 0 |
slope | float32 | 4 | 1 |
long_name | string | 1 | "250m Earth View Science data b1" |
band_names | string | 1 | “1” |
SDS 2. SDS Name | Type | Dimensions | Data Size |
EV_250_RefSB_b2 | uint16 | [2000*4, 8192] | 131.072 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 4 | 0 |
slope | float32 | 4 | 1 |
long_name | string | 1 | "250m Earth View Science data b2" |
band_names | string | 1 | “2” |
SDS 3. SDS Name | Type | Dimensions | Data Size |
EV_250_RefSB_b3 | uint16 | [2000*4, 8192] | 131.072 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 4 | 0 |
slope | float32 | 4 | 1 |
long_name | string | 1 | "250m Earth View Science data b3" |
band_names | string | 1 | “3” |
SDS 4. SDS Name | Type | Dimensions | Data Size |
EV_250_RefSB_b4 | uint16 | [2000*4, 8192] | 131.072 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 4 | 0 |
slope | float32 | 4 | 1 |
long_name | string | 1 | "250m Earth View Science data b4" |
band_names | string | 1 | “4” |
SDS 5. SDS Name | Type | Dimensions | Data Size |
EV_250_Emissive | uint16 | [2000*4, 8192] | 131.072 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 1 | 0 |
slope | float32 | 1 | 1 |
band_names | string | 1 | “5” |
long_name | string | 1 | "250m Earth View Science data b5" |
SDS 6. SDS Name | Type | Dimensions | Data Size |
Latitude | float32 | [2000, 2048] | 16.384 |
SDS Attribute | Data Type | number | value |
units | string | 1 | degree |
valid_range | float64 | 2 | [-90,90] |
_FillValue | float64 | 1 | -9999 |
intercept | float64 | 1 | 0 |
slope | float64 | 1 | 1 |
band_names | string | 1 | “latitude” |
long_name | string | 1 | Geolocation Latitude |
SDS 7. SDS Name | Type | Dimensions | Data Size |
Longitude | float32 | [2000, 2048] | 16.384 |
SDS Attribute | Data Type | number | value |
units | string | 1 | degree |
valid_range | float64 | 2 | [-180,180] |
_FillValue | float64 | 1 | -9999 |
intercept | float64 | 1 | 0 |
slope | float64 | 1 | 1 |
band_names | string | 1 | “longitude” |
long_name | string | 1 | Geolocation longitude |
SDS 8. SDS Name | Type | Dimensions | Data Size |
QA_index质量信息 | Uint32 | [2000, 2048] | 16.384 |
SDS Attribute | Data Type | number | value |
units | string | 1 | "none" |
valid_range | int32 | 2 | 0, 50000 |
FillValue | int32 | 1 | 65535 |
Intercept | float32 | 1 | 0.0 |
Slope | float32 | 1 | 1 |
band_names | string | 1 | "" |
long_name | string | 1 | " Quality Assurance Index" |
表5-19 FY-3A中分辨率光谱成像仪L1级数据(1000m)概况表
产品名称 | FY-3A中分辨率光谱成像仪L1级数据(1000m) |
FY-3A MERSI Level 1 1KM Earth View Data Products | |
物理意义(中英文) | 中分辨率光谱成像仪15个可见光和近红外通道原分辨率(1km)测值,经辐射定标和地球定位处理后生成的数据文件 |
The geolocated and calibrated observations from the 15 channels (VI and NIR) of MERSI instrument with ground resolution of 1km at nadir are included | |
用途(中英文) | 主要用于生成地表反射率、陆地覆盖类型、海洋水色、 气溶胶等产品。 |
It is mainly used for calculating surface reflectivity, land type, sea color etc. | |
用户 | 大气、陆地和海洋遥感产品生成用户 User of atmosphere, Land and Ocean L2 products of MERSI |
表5-20 FY-3A中分辨率光谱成像仪L1级数据(1000m)基本信息表
产品名称:FY-3A中分辨率光谱成像仪L1级数据(1000m) | ||
文件名约定: FY3A_MERSI_GBAL_L1_YYYYMMDD_HHmm_1000m_MS.HDF | ||
栏目 | 值 | 备注 |
卫星名 | FY3A | 参考“附件2:风云三号应用数据文件名命名规范”4.3 |
仪器名称 | MERSI | |
数据区域类型 | GBAL | |
数据级别 | L1 | |
分辨率 | 1000m | |
数据格式名称 | HDF | |
分块方式 | 段/5分钟 | |
数据量 | 300M | |
表5-21 FY-3A中分辨率光谱成像仪L1级数据(1000m)HDF结构
L1全局文件属性 | ||||||
私有文件属性 | 私有文件属性名 | 私有文件属性中文名 | ||||
47 | EQUATORCROSSINGLONGITUDE | EQUATORCROSSINGLONGITUDE | 交叉赤道经度 | |||
48 | EQUATORCROSSINGDATE | EQUATORCROSSINGDATE | 交叉赤道日期 | |||
49 | EQUATORCROSSINGTIME | EQUATORCROSSINGTIME | 交叉赤道时间 | |||
50 | Max Total Frames | Max Total Frames | 最大总帧 | |||
51 | Max Earth Frames | Max Earth Frames | 最大地球采样点 | |||
52 | Max VOC Frames | Max VOC Frames | 最大VOC采样点 | |||
53 | Max BB Frames | Max BB Frames | 最大黑体采样点 | |||
54 | Max SV Frames | Max SV Frames | 最大空间采样点 | |||
55 | Incomplete Scans | Incomplete Scans | 不完整的扫描数 | |||
56 | Missing Packets | Missing Packets | 缺帧数 | |||
57 | Discarded packets | Discarded packets | 抛帧包数 | |||
58 | Scan number | Scan number | 扫描号 | |||
59 | Frame count arry | Frame count arry | 帧计数矩阵 | |||
60 | Scan Type | Scan Type | 扫描类型 | |||
61 | VOC start time | VOC start time | VOC起始时间 | |||
62 | BB start time | BB start time | BB起始时间 | |||
63 | SV start time | SV start time | SV起始时间 | |||
64 | EV start time | EV start time | EV起始时间 | |||
65 | Packet scan count | Packet scan count | 包扫描计数 | |||
66 | Engineering BB DN data | Engineering BB DN data | 黑体帧扫描数据 | |||
67 | Telemetry BB PRT data | Telemetry BB PRT data | 遥测黑体数据 | |||
68 | EV center time | EV center time | 地球观测中心时间 | |||
69 | VOC Sun azimuth | VOC Sun azimuth | 积分球太阳方位角 | |||
70 | VOC Sun zenith | VOC Sun zenith | 积分球太阳天顶角 | |||
71 | VOC frames | VOC frames | 积分球帧扫描 | |||
72 | SV frames | SV frames | 空间帧扫描 | |||
73 | IR_Cal_Coeff | IR_Cal_Coeff | 红外通道定标系数 | |||
74 | VIS_Cal_Coeff | VIS_Cal_Coeff | 可见光通道定标系数 | |||
75 | TimeCode_QC_Flag | TimeCode_QC_Flag | 时间码质量检验码 | |||
76 | Instrment_State_QC_Flag | Instrment_State_QC_Flag | 仪器状态质量检验码 | |||
77 | IR_DN_Normalized_Coeff | IR_DN_Normalized_Coeff | 红外通道多探元修正系数 | |||
78 | VIS_250m_DN_Normalized_Coeff | VIS_250m_DN_Normalized_Coeff | 250m反射通道多探元修正系数 | |||
79 | VIS_1km_DN_Normalized_Coeff | VIS_250m_DN_Normalized_Coeff | 1km反射通道多探元修正系数 | |||
科学数据集 | 科学数据集名(英文) | 科学数据集中文名 | ||||
SDS 1 | EV_250_Aggr.1KM_RefSB | EV_250_Aggr.1KM_RefSB | 地球观测250m反射通道融合到1km | |||
SDS 2 | EV_1KM_RefSB | EV_1KM_RefSB | 地球观测1km反射通道 | |||
SDS 3 | EV_250_Aggr.1KM_Emissive | EV_250_Aggr.1KM_Emissive | 地球观测250m热红外通道融合到1km | |||
SDS 4 | Latitude | Latitude | 纬度 | |||
SDS 5 | Longitude | Longitude | 经度 | |||
SDS 6 | SensorAzimuth | SensorAzimuth | 传感器方位角 | |||
SDS 7 | SensorZenith | SensorZenith | 传感器天顶角 | |||
SDS 8 | SolarAzimuth | SolarAzimuth | 太阳方位角 | |||
SDS 9 | SolarZenith | SolarZenith | 太阳天顶角 | |||
SDS 10 | LandSeaMask | LandSeaMask | 海陆模板数据 | |||
SDS 11 | Range | Range | 斜距 | |||
SDS 12 | EVS_orb_pos | EVS_orb_pos | 对地观测起始时刻ECR轨道位置 | |||
SDS 13 | EVS_orb_vel | EVS_orb_vel | 对地观测起始时刻ECR轨道速度 | |||
SDS 14 | EVS_Attitude_angles | EVS_Attitude_angles | 对地观测起始时刻姿态角(φ,θ,ψ) | |||
SDS 15 | Moon_Vector | Moon_Vector | 星下点仪器坐标系月亮位置单位矢量 | |||
SDS 16 | Sun_Vector | Sun_Vector | 星下点仪器坐标系太阳位置单位矢量 | |||
SDS 17 | Height | Height | 海拔高程 | |||
SDS 18 | LandCover | LandCover | 陆地覆盖类型 | |||
SDS 19 | QA_Index | QA_Index | 质量信息码 | |||
表5-22 FY-3A中分辨率光谱成像仪L1级数据(1000m)全局文件属性定义
描述 | 属性名称 | 数据类型 | 数量 | 值 |
卫星名称(如FY-3A等) | Satellite Name | 8-bit signed char | 不定长 | FY-3A |
仪器名称 | Sensor Name | 8-bit signed char | 不定长 | Medium Resolution Spectral Imager |
传感器代码(如VIRR) | Sensor Identification Code | 8-bit signed char | 不定长 | MERSI |
数据集名称(如MPT) | Dataset Name | 8-bit signed char | 不定长 | |
文件名称 | File Name | 8-bit signed char | 不定长 | |
文件别名 | File Alias Name | 8-bit signed char | 不定长 | |
产品生成地(NSMC) | Responser | 8-bit signed char | 不定长 | |
处理软件版本号 | Version Of Software | 8-bit signed char | 不定长 | V 1.0.1 |
处理软件更新日期 | Software Revision Date | 8-bit signed char | 不定长 | |
定标系数版本号 | Version Of Coefficient Index | 8-bit signed char | 不定长 | |
定标系数更新日期 | Coefficient Index Revision Date | 8-bit signed char | 不定长 | |
数据观测开始日期 | Observing Beginning Date | 8-bit signed char | 不定长 | |
数据观测开始时间 | Observing Beginning Time | 8-bit signed char | 不定长 | |
数据观测结束日期 | Observing Ending Date | 8-bit signed char | 不定长 | |
数据观测结束时间 | Observing Ending Time | 8-bit signed char | 不定长 | |
数据创建日期 | Data Creating Date | 8-bit signed char | 不定长 | |
数据创建时间 | Data Creating Time | 8-bit signed char | 不定长 | |
白天夜间标志 | Day Or Night Flag | 8-bit signed char | 不定长 | |
轨道号 | Orbit Number | 32-bit unsigned Integer | 1 | |
轨道周期 | Orbit Period | 16-bit unsigned Integer | 1 | |
轨道方向 | Orbit Direction | 8-bit signed char | 1 | |
数据质量标记(1-5级) | Data Quality | 8-bit unsigned Integer | 1 | |
总扫描数 | Number Of Scans | 32-bit signed Integer | 1 | |
白天模式扫描数 | Number Of Day mode scans | 32-bit signed Integer | 1 | |
晚上模式扫描数 | Number of Night mode scans | 32-bit signed Integer | 1 | |
不完整的扫描数 | Incomplete Scans | 32-bit signed Integer | 1 | |
扫描线质量检验码 | QA_Scan_Flag | 8-bit unsigned Integer | 2000 | |
象元质量检验码 | QA_Pixel_Flag | 16-bit unsigned Integer | 2000 | |
起始行号 | Begin Line Number | 16-bit unsigned Integer | 1 | |
结束行号 | End Line Number | 16-bit unsigned Integer | 1 | |
起始象元号 | Begin Pixel Number | 16-bit unsigned Integer | 1 | |
结束象元号 | End Pixel Number | 16-bit unsigned Integer | 1 | |
地球椭球参考坐标系ID(WGS84) | Reference Ellipsoid Model ID | 8-bit signed char | 1 | |
日地距离比 | Earth/Sun Distance Ratio | 64-bit floating point | 1 | |
地球半径(m) | Earth Radius | 64-bit floating point | 1 | |
地球扁率 | Earth Oblateness | 64-bit floating point | 1 | |
地球偏心率 | Earth Eccentricity | 64-bit floating point | 1 | |
历元时间 | EpochTime | 64-bit floating point | 1 | |
半长轴(KM) | SemimajorAxis | 64-bit floating point | 1 | |
偏心率 | Eccentricity | 64-bit floating point | 1 | |
倾角(度) | OrbitalInclination | 64-bit floating point | 1 | |
升交点赤经(度) | AscendingNodeLongitude | 64-bit floating point | 1 | |
近地点角(度) | PerigeeArgument | 64-bit floating point | 1 | |
平近地点角(度) | MeanAnomaly | 64-bit floating point | 1 | |
轨道4个角点纬度 | Orbit Point Latitude | 32-bit floating point | 4 | |
轨道4个角点经度 | Orbit Point Longitude | 32-bit floating point | 4 | |
文件的附加说明 | AdditionalAnotation | 8-bit signed char | 不定长 | |
表5-23 FY-3A中分辨率光谱成像仪L1级数据(1000m)私有文件属性定义
描述 | 属性名称 | 数据类型 | 数量/有效范围 |
交叉赤道经度 | EQUATORCROSSINGLONGITUDE | Float64 | 1/-180.000—180.000 |
交叉赤道日期 | EQUATORCROSSINGDATE | String | 1/YYYY-MM-DD |
交叉赤道时间 | EQUATORCROSSINGTIME | String | 1/HH:MM:SS.SSSS |
最大总帧 | Max Total Frames | Int32 | 1/(0,2000) |
最大地球采样点 | Max Earth Frames | Int32 | 1/2048 |
最大VOC采样点 | Max VOC Frames | Int32 | 1/6 |
最大黑体采样点 | Max BB Frames | Int32 | 1/6 |
最大空间采样点 | Max SV Frames | Int32 | 1/6 |
不完整的扫描数 | Incomplete Scans | Int32 | 1/(0, 2000) |
缺帧数 | Missing Packets | Int32 | 2000/ |
抛帧包数 | Discarded packets | Int32 | 2000/ |
扫描号 | Scan number | Int32 | 2000/ |
帧计数矩阵 | Frame count arry | Int32 | 200/ |
扫描类型 | Scan Type | uint8 | 200/ |
VOC起始时间 | VOC start time | Float64 | 200/ |
BB起始时间 | BB start time | Float64 | 200/ |
SV起始时间 | SV start time | Float64 | 200/ |
EV起始时间 | EV start time | Float64 | 200/ |
包扫描计数 | Packet scan count | Int32 | 2000/ |
黑体帧扫描数据 | Engineering BB DN data | Float32 | 2000/ |
遥测黑体数据 | Telemetry BB PRT data | Float32 | 2000/ |
地球观测中心时间 | EV center time | Float32 | 200/ |
积分球太阳方位角 | VOC Sun azimuth | FLOAT32 | 200/ |
积分球太阳天顶角 | VOC Sun zenith | FLOAT32 | 200/ |
积分球帧扫描 | VOC frames | FLOAT32 | 2000/ |
空间扫描帧扫描 | SV frames | FLOAT32 | 2000/ |
红外通道定标系数 | IR_Cal_Coeff | float64 | [200,4]/ |
可见光通道定标系数 | VIS_Cal_Coeff | float64 | [19,3]/ |
时间码质量检验码 | TimeCode_QC_Flag | uint8 | 200 |
仪器状态质量检验码 | Instrment_State_QC_Flag | Uint32 | 200 |
红外通道多探元修正系数 | IR_DN_Normalized_Coeff | Float32 | [8000,2] |
250m反射通道多探元修正系数 | VIS_250m_DN_Normalized_Coeff | Float32 | [4,40,2] |
1km反射通道多探元修正系数 | VIS_1km_DN_Normalized_Coeff | Float32 | [15,10,2] |
表5-24 FY-3A中分辨率光谱成像仪L1级数据(1000m)科学数据集(SDS)定义
SDS 1. SDS Name | Type | Dimensions | Data Size | |||||
EV_250_Aggr.1KM_RefSB | uint16 | [4, 2000, 2048] | 32.768 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | "none" | |||||
valid_range | int32 | 2 | [0,4095] | |||||
_FillValue | int32 | 1 | -9999 | |||||
intercept | float32 | 4 | 0.0 | |||||
slope | float32 | 4 | 1.0 | |||||
band_names | string | 1 | “1,2,3,4” | |||||
long_name | string | 1 | "250m EV Science data aggregated to 1 km" | |||||
SDS 2. SDS Name | Type | Dimensions | Data Size | |||||
EV_1KM_RefSB | uint16 | [15, 2000, 2048] | 122.88 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | NO | |||||
valid_range | int32 | 2 | [0,4095] | |||||
_FillValue | int32 | 1 | -9999 | |||||
intercept | float32 | 15 | ||||||
slope | float32 | 15 | ||||||
band_names | string | 1 | "6,7,8,9,10,11,12,13,14,15,16,17,18,19,20" | |||||
long_name | string | 1 | "1km EV Science data of Reflective Solar Bands" | |||||
SDS 3. SDS Name | Type | Dimensions | Data Size | |||||
EV_250_Aggr.1KM_Emissive | uint16 | [1,2000, 2048] | 8.192 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | NO | |||||
valid_range | int32 | 2 | [0,4095] | |||||
_FillValue | int32 | 1 | -9999 | |||||
intercept | float32 | 1 | 0.0 | |||||
slope | float32 | 1 | 1.0 | |||||
band_names | string | 1 | “5” | |||||
long_name | string | 1 | "Emissive 250m EV Science data aggregated to 1 km" | |||||
SDS 4. SDS Name | Type | Dimensions | Data Size | |||||
Latitude(纬度) | FLOAT32 | [2000,2048] | 16.384 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | degree | |||||
valid_range | float64 | 2 | [-90,90] | |||||
_FillValue | float64 | 1 | -9999 | |||||
intercept | float64 | 1 | 0 | |||||
slope | float64 | 1 | 1 | |||||
band_names | string | 1 | “latitude” | |||||
long_name | string | 1 | "Geolocation Latitude" | |||||
SDS 5. SDS Name | Type | Dimensions | Data Size | |||||
Longitude(经度) | FLOAT32 | [2000,2048] | 16.384 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | degree | |||||
valid_range | float64 | 2 | [-180,180] | |||||
_FillValue | float64 | 1 | -9999 | |||||
intercept | float64 | 1 | 0 | |||||
slope | float64 | 1 | 1 | |||||
band_names | string | 1 | “longitude” | |||||
long_name | string | 1 | "Geolocation longitude" | |||||
SDS 6. SDS Name | Type | Dimensions | Data Size | |||||
SensorAzimuth(传感器方位角) | int16 | [2000,2048] | 8.192 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | degree | |||||
valid_range | int32 | 2 | [-180,180] | |||||
_FillValue | int32 | 1 | -9999 | |||||
intercept | float32 | 1 | 0 | |||||
slope | float32 | 1 | 1 | |||||
band_names | string | 1 | “azimuth” | |||||
long_name | string | 1 | "Veiwing Azimith Angle to EV pixels" | |||||
SDS 7. SDS Name | Type | Dimensions | Data Size | |||||
SensorZenith(传感器天顶角) | int16 | [2000,2048] | 8.192 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | degree | |||||
valid_range | int32 | 2 | [0,180] | |||||
_FillValue | int32 | 1 | -9999 | |||||
intercept | float32 | 1 | 0 | |||||
slope | float32 | 1 | 1 | |||||
band_names | string | 1 | “zenith” | |||||
long_name | string | 1 | "Veiwing Zenith Angle to EV pixels" | |||||
SDS 8. SDS Name | Type | Dimensions | Data Size | |||||
SolarAzimuth(太阳方位角) | int16 | [2000,2048] | 8.192 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | degree | |||||
valid_range | int32 | 2 | [-180,180] | |||||
_FillValue | int32 | 1 | -9999 | |||||
intercept | float32 | 1 | 0 | |||||
slope | float32 | 1 | 1 | |||||
band_names | string | 1 | “azimuth” | |||||
long_name | string | 1 | "Solar Azimith Angle to EV pixels" | |||||
SDS 9. SDS Name | Type | Dimensions | Data Size | |||||
SolarZenith(太阳天顶角) | int16 | [2000,2048] | 8.192 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | degree | |||||
valid_range | int32 | 2 | [0,180] | |||||
_FillValue | int32 | 1 | -9999 | |||||
intercept | float32 | 1 | 0 | |||||
slope | float32 | 1 | 1 | |||||
band_names | string | 1 | “zenith” | |||||
long_name | string | 1 | "Solar Zenith Angle to EV pixels" | |||||
SDS 10. SDS Name | Type | Dimensions | Data Size | |||||
LandSeaMask(海陆模板数据) | UINT8 | [2000,2048] | 4.096 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | none | |||||
valid_range | int32 | 2 | 0, 7 | |||||
_FillValue | int32 | 1 | 255 | |||||
intercept | float32 | 1 | 0 | |||||
slope | float32 | 1 | 1 | |||||
band_names | string | 1 | “mask” | |||||
long_name | string | 1 | "LandSea Mask" | |||||
SDS 11. SDS Name | Type | Dimensions | Data Size | |||||
Range(斜距) | UINT16 | [2000,2048] | 8.192 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | meters | |||||
valid_range | int32 | 2 | [,] | |||||
_FillValue | int32 | 1 | -9999 | |||||
intercept | float32 | 1 | 0.0 | |||||
slope | float32 | 1 | 1.0 | |||||
band_names | string | 1 | “mask” | |||||
long_name | string | 1 | "Range betweem Sensor and pixls" | |||||
SDS 12. SDS Name | Type | Dimensions | Data Size | |||||
EVS_orb_pos | float64 | [200,3] | 0.0048 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | "meter" | |||||
valid_range | float64 | 2 | -7300000 , +7300000 | |||||
_FillValue | float64 | 1 | 4294967295 | |||||
intercept | float64 | 1 | 0.0 | |||||
slope | float64 | 1 | 1.0 | |||||
band_names | string | 1 | “none” | |||||
long_name | string | 1 | ‘Orbit Velocity Data when Earth View Start(u,v,w)’ | |||||
SDS 13. SDS Name | Type | Dimensions | Data Size | |||||
EVS_orb_vel | float64 | [200,3] | 0.0048 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | "m/s" | |||||
valid_range | float64 | 2 | -7600,7600 | |||||
_FillValue | float64 | 1 | 65535 | |||||
intercept | float64 | 1 | 0.0 | |||||
slope | float64 | 1 | 1.0 | |||||
band_names | string | 1 | “” | |||||
long_name | string | 1 | ||||||
SDS 14. SDS Name | Type | Dimensions | Data Size | |||||
EVS_Attitude_angles | float64 | [200,3] | 0.0048 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | "radians" | |||||
valid_range | float64 | 2 | -0.01,0.01 | |||||
_FillValue | float64 | 1 | 65535 | |||||
intercept | float64 | 1 | 0.0 | |||||
slope | float64 | 1 | 1.0 | |||||
band_names | string | 1 | “” | |||||
long_name | string | 1 | ‘Attitude Data when Earth View Start(φ,θ,ψ)’ | |||||
SDS 15. SDS Name | Type | Dimensions | Data Size | |||||
Moon_Vector | float32 | [200,3] | 0.0024 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | ‘none’ | |||||
valid_range | float64 | 2 | -1,1 | |||||
_FillValue | float64 | 1 | FFFF | |||||
intercept | float64 | 1 | 0.0 | |||||
slope | float64 | 1 | 1.0 | |||||
band_names | string | 1 | “” | |||||
long_name | string | 1 | "Moon Vector to Sensor" | |||||
SDS 16. SDS Name | Type | Dimensions | Data Size | |||||
Sun_Vector | float32 | [200,3] | 0.0024 | |||||
SDS Attribute | Data Type | number | value | |||||
units | string | 1 | ‘none’ | |||||
valid_range | float64 | 2 | -1,1 | |||||
_FillValue | float64 | 1 | FFFF | |||||
intercept | float64 | 1 | 0.0 | |||||
slope | float64 | 1 | 1.0 | |||||
band_names | string | 1 | “” | |||||
long_name | string | 1 | "Sun Vector to Sensor" | |||||
SDS 17 SDS Name | Type | Dimensions | Data Size | |||||
Height (海拔高度) | int16 | [ 2000,2048] | 8.192 | |||||
SDS属性名 | Data Type | number | value | |||||
units | string | 1 | "meters" | |||||
valid_range | int32 | 2 | -30000, 30000 | |||||
FillValue | int32 | 1 | 32767 | |||||
Slope | float32 | 1 | 1 | |||||
Intercept | float32 | 1 | 0.0 | |||||
band_names | string | 1 | “” | |||||
long_name | string | 1 | "Height" | |||||
SDS 18 SDS Name | Type | Dimensions | Data Size | |||||
LandCover(陆地覆盖类型) | uint8 | [2000,2048] | 4.096 | |||||
SDS属性名 | Data Type | number | value | |||||
units | string | 1 | "none" | |||||
valid_range | int32 | 2 | 0, 16 | |||||
FillValue | int32 | 1 | 255 | |||||
Slope | float32 | 1 | 1 | |||||
Intercept | float32 | 1 | 0.0 | |||||
band_names | string | 1 | “ ” | |||||
long_name | string | 1 | " Land Cover " | |||||
SDS 51. SDS Name | Type | Dimensions | Data Size | |||||
QA_index质量信息 | Uint32 | [2000, 2048] | 16.384 | |||||
SDS属性名 | Data Type | number | value | |||||
units | string | 1 | "none" | |||||
valid_range | int32 | 2 | 0, 50000 | |||||
FillValue | int32 | 1 | 65535 | |||||
Slope | float32 | 1 | 1 | |||||
Intercept | float32 | 1 | 0.0 | |||||
band_names | string | 1 | “ ” | |||||
long_name | string | 1 | " Quality Assurance Index" | |||||
表5-25 FY-3A中分辨率光谱成像仪L1数据(OBC)概况表
产品名称 | FY-3A中分辨率光谱成像仪L1数据(OBC) |
FY-3A MERSI Level 1 Onboard calibration data Products | |
物理意义(中英文) | 中分辨率光谱成像仪20个可见光和红外通道原分辨率测值,经辐射定标和地球定位处理后生成的数据文件,另含黑体PRT温度、MERS1对黑体的扫描及其它工程遥测数据 |
The geolocated and calibrated observations from MERSI instrument with 20 channels( VIR,NIR and IR) as well as the output of the MERSI when viewing the housing blackbody target, space and other telemetry data are included. | |
用途(中英文) | 主要用于辐射定标算法试验和仪器性能分析 |
It is mainly used for radiometric calibration algorithm study and instrument status analysis. | |
用户 | MERSI仪器研制方和定标工作组 MERSI Manufacturer and Calibration Working Group |
表5-26 FY-3A中分辨率光谱成像仪L1数据(OBC)基本信息表
产品名称:FY-3A中分辨率光谱成像仪L1数据(OBC) | ||
文件名约定: FY3A_MERSI_GBAL_L1_YYYYMMDD_HHmm_OBCXX_MS.HDF | ||
栏目 | 值 | 备注 |
卫星名 | FY3A | 参考“附件2:风云三号应用数据文件名命名规范”4.3 |
仪器名称 | MERSI | |
数据区域类型 | GBAL | |
数据级别 | L1 | |
分辨率 | ||
数据格式名称 | HDF | |
分块方式 | 块/5分钟 | |
数据量 | 5.36M | |
表5-27 FY-3A中分辨率光谱成像仪L1数据(OBC)HDF结构
L1全局文件属性 | |||
私有文件属性 | 私有文件属性名 | 私有文件属性中文名 | |
1 | Frame_Count | Frame_Count | 帧计数 |
2 | Broadcast_TIme | Broadcast_TIme | 广播时间 |
3 | Day_Count | Day_Count | 天计数 |
4 | Millisecond_Count | Millisecond_Count | 毫秒计数 |
5 | Time_Interval | Time_Interval | 时间间隔 |
6 | Time_Count | Time_Count | 计时器 |
7 | Position | Position | 位置 |
8 | Position_Time | Position_Time | 位置时间 |
9 | Attitude | Attitude | 姿态 |
10 | Attitude_Time | Attitude_Time | 姿态时间 |
11 | Cal_Signal | Cal_Signal | 定标器信号 |
12 | Bracket_Calibratior_Temp | Bracket_Calibratior_Temp | 支架温度DN |
13 | Cool_Tem_Voltage | Cool_Tem_Voltage | 辐冷温度电压 |
14 | Status_Telemetry | Status_Telemetry | 遥测状态参数 |
15 | Gain_status | Gain_status | 增益状态 |
16 | BB_Temp | BB_Temp | 黑体温度 |
17 | Scan Type | Scan Type | 扫描类型 |
18 | VOC start time | VOC start time | VOC起始时间(十进制小时) |
19 | BB start time | BB start time | BB起始时间(十进制小时) |
20 | SV start time | SV start time | SV起始时间(十进制小时) |
21 | EV start time | EV start time | EV起始时间(十进制小时) |
22 | EV center time | EV center time | 地球观测中心时间(十进制小时) |
23 | VOC Sun azimuth | VOC Sun azimuth | 积分球太阳方位角 |
24 | VOC Sun zenith | VOC Sun zenith | 积分球太阳天顶角 |
25 | IR_Cal_Coeff | IR_Cal_Coeff | 红外通道定标系数 |
26 | VIS_Cal_Coeff | VIS_Cal_Coeff | 可见光通道定标系数 |
27 | TimeCode_QC_Flag | TimeCode_QC_Flag | 时间码质量检验码 |
28 | Instrment_State_QC_Flag | Instrment_State_QC_Flag | 仪器状态质量检验码 |
29 | IR_DN_Normalized_Coeff | IR_DN_Normalized_Coeff | 红外通道多探元修正系数 |
30 | VIS_250m_DN_Normalized_Coeff | VIS_250m_DN_Normalized_Coeff | 250m反射通道多探元修正系数 |
31 | VIS_1km_DN_Normalized_Coeff | VIS_1km_DN_Normalized_Coeff | 1km反射通道多探元修正系数 |
科学数据集 | 科学数据集名(英文) | 科学数据集中文名 | |
SDS 1 | SV_250m_REFL | SV_250m_REFL | 250M反射通道空间扫描DN |
SDS 2 | VOC_250m_REFL | VOC_250m_REFL | 250M反射通道星上定标器扫描DN |
SDS 3 | BB_250m_REFL | BB_250m_REFL | 250M反射通道黑体扫描DN |
SDS 4 | SV_250m_EMIS | SV_250m_EMIS | 250M红外通道空间扫描DN |
SDS 5 | VOC_250m_ EMIS | VOC_250m_ EMIS | 250M红外通道星上定标器扫描DN |
SDS 6 | BB_250m_ EMIS | BB_250m_ EMIS | 250M红外通道黑体扫描DN |
SDS 7 | SV_1km | SV_1km | 1KM反射通道空间扫描DN |
SDS 8 | VOC_1km | VOC_1km | 1KM反射通道星上定标器扫描DN |
SDS 9 | BB_1km | BB_1km | 1KM反射通道黑体扫描DN |
SDS 10 | OBC_PRT_Temperature | OBC_PRT_Temperature | 星上黑体等效亮温 |
SDS 11 | OBC_BB_Average_Temperature | OBC_BB_Average_Temperature | 星上黑体平均温度 |
SDS 12 | OBC_PRT_Average_Temperature | OBC_PRT_Average_Temperature | 星上黑体平均等效亮温 |
SDS 13 | OBC_BB_Temperature | OBC_BB_Temperature | 星上黑体温度 |
SDS 14 | VOC_Temp | OBC_Temperature | 星上定标器温度 |
SDS 15 | DN_avg_SV_1km | DN_avg_SV_1km | 1KM反射通道空间扫描DN平均值 |
SDS 16 | DN_avg_SV_250m | DN_avg_SV_250m | 250M反射通道空间扫描DN平均值 |
SDS 17 | IR_DN_SV | IR_DN_SV | 250M红外通道空间扫描DN平均值 |
SDS 18 | EVC_Lon_Lat | EVC_Lon_Lat | 1KM星下点经纬度 |
SDS 19 | EVC_Azi_Zen | EVC_Azi_Zen | 太阳相对卫星角度(方位角\天顶角) |
SDS 20 | BB_250m_EMIS_QC_Flag | BB_250m_EMIS_QC_Flag | 红外通道黑体扫描数据质量检验码 |
SDS 21 | SV_250m_EMIS_QC_Flag | SV_250m_EMIS_QC_Flag | 红外通道空间扫描数据质量检验码 |
表5-28 FY-3A中分辨率光谱成像仪L1数据(OBC)全局文件属性定义
描述 | 属性名称 | 数据类型 | 数量 | 值 |
卫星名称(如FY-3A等) | Satellite Name | 8-bit signed char | 不定长 | FY-3A |
仪器名称 | Sensor Name | 8-bit signed char | 不定长 | Medium Resolution Spectral Imager |
传感器代码(如VIRR) | Sensor Identification Code | 8-bit signed char | 不定长 | MERSI |
数据集名称(如MPT) | Dataset Name | 8-bit signed char | 不定长 | MPT |
文件名称 | File Name | 8-bit signed char | 不定长 | |
文件别名 | File Alias Name | 8-bit signed char | 不定长 | |
产品生成地(NSMC) | Responser | 8-bit signed char | 不定长 | NSMC |
处理软件版本号(如V1.0.0) | Version Of Software | 8-bit signed char | 不定长 | V 1.0.0 |
处理软件更新日期 | Software Revision Date | 8-bit signed char | 不定长 | |
定标系数版本号 | Version Of Coefficient Index | 8-bit signed char | 不定长 | |
定标系数更新日期 | Coefficient Index Revision Date | 8-bit signed char | 不定长 | |
数据观测开始日期(包括年月日) | Observing Beginning Date | 8-bit signed char | 不定长 | |
数据观测开始时间(包括时分秒毫秒) | Observing Beginning Time | 8-bit signed char | 不定长 | |
数据观测结束日期(包括年月日) | Observing Ending Date | 8-bit signed char | 不定长 | |
数据观测结束时间(包括时分秒毫秒) | Observing Ending Time | 8-bit signed char | 不定长 | |
数据创建日期(包括年月日) | Data Creating Date | 8-bit signed char | 不定长 | |
数据创建时间(包括时分秒毫秒) | Data Creating Time | 8-bit signed char | 不定长 | |
白天夜间标志 | Day Or Night Flag | 8-bit signed char | 不定长 | |
轨道号 | Orbit Number | 32-bit unsigned Integer | 1 | |
轨道周期 | Orbit Period | 16-bit unsigned Integer | 1 | |
轨道方向 | Orbit Direction | 8-bit signed char | 1 | |
数据质量标记(1-5级) | Data Quality | 8-bit unsigned Integer | 1 | |
总扫描数 | Number Of Scans | 32-bit signed Integer | 1 | |
白天模式扫描数 | Number Of Day mode scans | 32-bit signed Integer | 1 | |
晚上模式扫描数 | Number of Night mode scans | 32-bit signed Integer | 1 | |
不完整的扫描数 | Incomplete Scans | 32-bit signed Integer | 1 | |
扫描线质量检验码 | QA_Scan_Flag | 8-bit unsigned Integer | nscans | |
象元质量检验码 | QA_Pixel_Flag | 16-bit unsigned Integer | nscans | |
起始行号 | Begin Line Number | 16-bit unsigned Integer | 1 | |
结束行号 | End Line Number | 16-bit unsigned Integer | 1 | |
起始象元号 | Begin Pixel Number | 16-bit unsigned Integer | 1 | |
结束象元号 | End Pixel Number | 16-bit unsigned Integer | 1 | |
地球椭球参考坐标系ID(WGS84) | Reference Ellipsoid Model ID | 8-bit signed char | 1 | |
日地距离比 | Earth/Sun Distance Ratio | 64-bit floating point | 1 | |
地球半径(m) | Earth Radius | 64-bit floating point | 1 | |
地球扁率 | Earth Oblateness | 64-bit floating point | 1 | |
地球偏心率 | Earth Eccentricity | 64-bit floating point | 1 | |
历元时间 | EpochTime | 64-bit floating point | 1 | |
半长轴(KM) | SemimajorAxis | 64-bit floating point | 1 | |
偏心率 | Eccentricity | 64-bit floating point | 1 | |
倾角(度) | OrbitalInclination | 64-bit floating point | 1 | |
升交点赤经(度) | AscendingNodeLongitude | 64-bit floating point | 1 | |
近地点角(度) | PerigeeArgument | 64-bit floating point | 1 | |
平近地点角(度) | MeanAnomaly | 64-bit floating point | 1 | |
轨道4个角点纬度 | Orbit Point Latitude | 32-bit floating point | 4 | |
轨道4个角点经度 | Orbit Point Longitude | 32-bit floating point | 4 | |
文件的附加说明(可以对文件的使用、创建人等说明) | AdditionalAnotation | 8-bit signed char | 不定长 | |
表5-29 FY-3A中分辨率光谱成像仪L1数据(OBC)私有文件属性定义
描述 | 属性名称 | 数据类型 | 数量/有效范围 |
帧计数 | Frame_Count | Int32 | [200, 1]/ |
广播时间 | Broadcast_TIme | Float64 | [200, 1]/ |
天计数 | Day_Count | Int32 | [200, 1]/ |
毫秒计数 | Millisecond_Count | Int32 | [200, 1]/ |
时间间隔 | Time_Interval | Int16 | [200, 1]/ |
计时器 | Time_Count | Int64 | [200, 1]/ |
位置 | Position | int32 | [200,3]/ |
位置时间 | Position_Time | unt32 | [200, 1]/ |
姿态 | Attitude | int16 | [200, 3]/ |
姿态时间 | Attitude_Time | uint32 | [200, 1]/ |
定标器信号 | Cal_Signal | uint16 | [200, 5]/ |
支架温度DN | Bracket_Calibratior_Temp | uint16 | [200, 2]/ |
辐冷温度电压 | Cool_Tem_Voltage | uint16 | [200, 3]/ |
遥测状态参数 | Status_Telemetry | uint16 | [200, 2]/ |
增益状态 | Gain_status | uint8 | [200, 3]/ |
黑体温度 | BB_Temp | uint16 | [200, 4]/ |
扫描类型 | Scan Type | uint8 | 200// |
VOC起始时间 | VOC start time | Float64 | 200/ |
BB起始时间 | BB start time | Float64 | 200/ |
SV起始时间 | SV start time | Float64 | 200/ |
EV起始时间 | EV start time | Float64 | 200/ |
地球观测中心时间 | EV center time | Float64 | 200/ |
积分球太阳方位角 | VOC Sun azimuth | FLOAT32 | 200/ |
积分球太阳天顶角 | VOC Sun zenith | FLOAT32 | 200/ |
红外通道定标系数 | IR_Cal_Coeff | float64 | [200,4]/ |
可见光通道定标系数 | VIS_Cal_Coeff | float64 | [19,3]/ |
时间码质量检验码 | TimeCode_QC_Flag | uint8 | 200/ |
仪器状态质量检验码 | Instrment_State_QC_Flag | Uint32 | 200/ |
红外通道多探元修正系数 | IR_DN_Normalized_Coeff | Float32 | [8000,2]/ |
250m反射通道多探元修正系数 | VIS_250m_DN_Normalized_Coeff | Float32 | [4,40,2]/ |
1km反射通道多探元修正系数 | VIS_1km_DN_Normalized_Coeff | Float32 | [15,10,2]/ |
表5-30 FY-3A中分辨率光谱成像仪L1数据(OBC)科学数据集(SDS)定义
SDS 1. SDS Name | Type | Dimensions | Data Size |
SV_250m_REFL | uint16 | [4, 200*40, 24] | 1.536M |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 4 | 0 |
slope | float32 | 4 | 1 |
long_name | string | 1 | "Space View DN of 250m Reflective Bands" |
SDS 2. SDS Name | Type | Dimensions | Data Size |
VOC_250m_REFL | uint16 | [4, 200*40, 24] | 1.536M |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 4 | 0 |
slope | float32 | 4 | 1 |
long_name | string | 1 | "Visble Oboard Calibrator DN of 250m Reflective Bands" |
SDS 3. SDS Name | Type | Dimensions | Data Size |
BB_250m_REFL | uint16 | [4, 200*40, 24] | 1.536M |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 4 | 0 |
slope | float32 | 4 | 1 |
long_name | string | 1 | "BlackBody Scanning DN of 250m Reflective Bands" |
SDS 4. SDS Name | Type | Dimensions | Data Size |
SV_250m_EMIS | uint16 | [1, 200*40, 24] | 0.384M |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 1 | 0 |
slope | float32 | 1 | 1 |
long_name | string | 1 | "Space View DN of 250m Emissive Bands" |
SDS 5. SDS Name | Type | Dimensions | Data Size |
VOC_250m_ EMIS | uint16 | [1, 200*40, 24] | 0.384M |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 1 | 0 |
slope | float32 | 1 | 1 |
long_name | string | 1 | "Visble Oboard Calibrator DN of 250m Emissive Bands" |
SDS 6. SDS Name | Type | Dimensions | Data Size |
BB_250m_ EMIS | uint16 | [1, 200*40, 24] | 0.384M |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 1 | 0 |
slope | float32 | 1 | 1 |
long_name | string | 1 | "BlackBody Scanning DN of 250m Emissive Bands" |
SDS 7. SDS Name | Type | Dimensions | Data Size |
SV_1km | uint16 | [15, 200*10, 6] | 0.360 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 15 | 0 |
slope | float32 | 15 | 1 |
long_name | string | 1 | "Space View DN of 1km Reflective Bands" |
SDS 8. SDS Name | Type | Dimensions | Data Size |
VOC_1km | uint16 | [15, 200*10, 6] | 0.360 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 15 | 0 |
slope | float32 | 15 | 1 |
long_name | string | 1 | "Visble Oboard Calibrator DN of 1km Reflective Bands" |
SDS 9. SDS Name | Type | Dimensions | Data Size |
BB_1km | uint16 | [15, 200*10, 6] | 0.360 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0,4095] |
_FillValue | int32 | 1 | -9999 |
intercept | float32 | 15 | 0 |
slope | float32 | 15 | 1 |
long_name | string | 1 | "BlackBody Scanning DN of 1km Reflective Bands" |
SDS 10. SDS Name | Type | Dimensions | Data Size |
OBC_PRT_Temperature | Float32 | [200, 4] | 0.032 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | float64 | 2 | [0,4095] |
_FillValue | float64 | 1 | -9999 |
intercept | float64 | 1 | 0 |
slope | float64 | 1 | 1 |
long_name | string | 1 | "Equivlent BlackBody 4 PRTs temperature" |
SDS 11. SDS Name | Type | Dimensions | Data Size |
OBC_BB_Average_Temperature | Float32 | [200, 1] | 0.008 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | float64 | 2 | [0,4095] |
_FillValue | float64 | 1 | -9999 |
intercept | float64 | 1 | 0 |
slope | float64 | 1 | 1 |
long_name | string | 1 | "BlackBody mean of 4 PRTs temperature" |
SDS 12. SDS Name | Type | Dimensions | Data Size |
OBC_PRT_Average_Temperature | Float32 | [200, 1] | 0.008 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | float64 | 2 | [0,4095] |
_FillValue | float64 | 1 | -9999 |
intercept | float64 | 1 | 0 |
slope | float64 | 1 | 1 |
long_name | string | 1 | "Equivlent BlackBody mean of 4 PRTs temperature" |
SDS 13. SDS Name | Type | Dimensions | Data Size |
OBC_BB_Temperature | Float32 | [200, 4] | 0.008 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | float64 | 2 | [0,4095] |
_FillValue | float64 | 1 | -9999 |
intercept | float64 | 1 | 0 |
slope | float64 | 1 | 1 |
long_name | string | 1 | "BlackBody mean of 4 PRTs temperature" |
SDS 14. SDS Name | Type | Dimensions | Data Size |
VOC_Temperature | Float32 | [200, 1] | 0.008 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | float64 | 2 | [0,4095] |
_FillValue | float64 | 1 | -9999 |
intercept | float64 | 1 | 0 |
slope | float64 | 1 | 1 |
long_name | string | 1 | "VOC PRT temperature" |
SDS 15. SDS Name | Type | Dimensions | Data Size |
DN_avg_SV_1km | Float32 | [15, 200*10] | 0.12M |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | float64 | 2 | [0,4095] |
_FillValue | float64 | 1 | -9999 |
intercept | float64 | 15 | 0 |
slope | float64 | 15 | 1 |
long_name | string | 1 | "Mean value of Space View DN of 1km Reflective Bands" |
SDS 16. SDS Name | Type | Dimensions | Data Size |
DN_avg_SV_250m | Float32 | [4, 200*40] | 0.128M |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | float64 | 2 | [0,4095] |
_FillValue | float64 | 1 | -9999 |
intercept | float64 | 4 | 0 |
slope | float64 | 4 | 1 |
long_name | string | 1 | "Mean value of Space View DN of 250m Reflective Bands" |
SDS 17. SDS Name | Type | Dimensions | Data Size |
IR_DN_SV | Float32 | [1, 200* 40] | 0.032MB |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | float64 | 2 | [0,4095] |
_FillValue | float64 | 1 | -9999 |
intercept | float64 | 1 | 0 |
slope | float64 | 1 | 1 |
long_name | string | 1 | "Mean value of Space View DN of 250m Emissive Band" |
SDS 18. SDS Name | Type | Dimensions | Data Size |
EVC_Lon_Lat (1KM星下点经纬度) | float32 | [2000,2] | 0.016M |
SDS Attribute | Data Type | number | value |
units | string | 1 | "degrees" |
valid_range | float64 | 2 | -180.0, 180.0 |
_FillValue | float64 | 1 | -999.9 |
intercept | float64 | 1 | 0.0 |
slope | float64 | 1 | 1.0 |
long_name | string | 1 | "EVC Nadir Longitude and Lattitude" |
SDS 19. SDS Name | Type | Dimensions | Data Size |
EVC_Azi_Zen (1KM星下点时刻太阳相对卫星角度方位角\天顶角) | float32 | [2000,2] | 0.016M |
SDS Attribute | Data Type | number | value |
units | string | 1 | "degrees" |
valid_range | int32 | 2 | -18000, 18000 / 0,1800 |
_FillValue | int32 | 1 | -32767 / 7FFF |
intercept | float32 | 3 | 0.0 |
slope | float32 | 3 | 0.01 |
long_name | string | 1 | "EVC Nadir Azimuth and Zenith Angle" |
SDS 20. SDS Name | Type | Dimensions | Data Size |
BB_250m_EMIS_QC_Flag | Uint8 | [8000] | 0.008 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0 or 1] |
_FillValue | int32 | 1 | -9999 |
intercept | Float32 | 1 | 0 |
slope | Float32 | 1 | 1 |
long_name | string | 1 | "250m Emissive BB Scan Quality Check" |
SDS 21. SDS Name | Type | Dimensions | Data Size |
SV_250m_EMIS_QC_Flag | Uint8 | [8000] | 0.008 |
SDS Attribute | Data Type | number | value |
units | string | 1 | NO |
valid_range | int32 | 2 | [0 or 1] |
_FillValue | int32 | 1 | -9999 |
intercept | Float32 | 1 | 0 |
slope | Float32 | 1 | 1 |
long_name | string | 1 | "250m Emissive SV Scan Quality Check" |
表5-31 FY-3A微波温度计L1级数据概况表
产品名称 | FY-3A微波温度计L1级数据 |
L1 Data of FY-3A MicroWave Temperature Sounder | |
物理意义(中英文) | 位于50GHz O2吸收带4个光谱通道的微波温度计测值,经辐射定标和地球定位处理后生成的数据文件。 |
The geolocated and calibrated observations from MWTS instrument with 4 channels in 50GHz O2 absorption band are included. | |
用途(中英文) | 主要用大气温度廓线反演 |
It is mainly used for retrieving atmospheric temperature profiles. | |
用户 | 产品生成系统、应用服务系统、应用示范系统。 |
表5-32 FY-3A微波温度计L1级数据基本信息表
产品名称:FY-3A微波温度计L1级数据 | ||
文件名约定: FY3A_MWTSX_GBAL_L1_YYYYMMDD_HHmm_060KM_MS.HDF | ||
栏目 | 值 | 备注 |
卫星名 | FY3A | 参考“附件2:风云三号应用数据文件名命名规范”4.3 |
仪器名称 | MWTSX | |
数据区域类型 | GBAL | |
数据级别 | L1 | |
分辨率 | 60KM | 星下点 |
数据格式名称 | HDF | |
分块方式 | 弧段 | |
更新频率 | 14圈/天 | |
数据量 | 约4M/天 | 24*60*60/16*256*3.0/天=4M/天 |
表5-33 FY-3A微波温度计L1级数据HDF结构
L1数据全局文件属性 | |||||||
L1数据私有文件属性 | |||||||
科学数据集 | |||||||
科学数据集 | 科学数据集名(英文) | 科学数据集中文名 | |||||
错误!未找到引用源。 | Scnlin SDS | Scan Line Number | 扫描线序号 | ||||
错误!未找到引用源。 | Scnlin_daycnt SDS | Scan Line Time(day counter) | 扫描线天计数 | ||||
错误!未找到引用源。 | Scnlin_mscnt SDS | Scan Line Time(miliseconds counter) | 扫描线起始时刻毫秒计数 | ||||
错误!未找到引用源。 | Latitude SDS | Latitude | 纬度 | ||||
SDS 5 | Longitude SDS | Longitude | 经度 | ||||
SDS 6 | SolarAzimuth SDS | SunAzimuth | 太阳方位角 | ||||
SDS 6 | SolarZenith SDS | SunZenith | 太阳天顶角 | ||||
SDS 9 | SensorAzimuth SDS | SensorAzimuth | 传感器方位角 | ||||
SDS 8 | SensorZenith SDS | SensorZenith | 传感器天顶角 | ||||
SDS 10 | View_Angle SDS | View_Angle | 观测时序角 | ||||
SDS 11 | Height SDS | Height | 拔海高度数据 | ||||
SDS 12 | LandSeaMask SDS | LandSeaMask | 海陆掩码数据 | ||||
SDS 12 | LandCover SDS | LandCover | 陆地覆盖类型数据 | ||||
SDS 14 | Cal_Coefficient SDS | Cal_Coefficient | 定标系数 | ||||
SDS 14 | Raw_Data_DN SDS | Raw_Data_DN | 原始计数值 | ||||
SDS 14 | Objector_Brightness_Temperature SDS | Objector_BT | 目标亮温 | ||||
错误!未找到引用源。 | Space_View_DN SDS | Space_View_DN | 外空观测计数值数据 | ||||
错误!未找到引用源。 | Space_View_Angle SDS | Space_View_Angle | 外空观测角编码数据 | ||||
错误!未找到引用源。 | Black_Body_View SDS | Black_Body_View | 黑体观测计数值数据 | ||||
错误!未找到引用源。 | Black_Body_View_Angle SDS | Black_Body_View_Angle | 黑体观测角编码数据 | ||||
错误!未找到引用源。 | Temp_Remote_Measure SDS | Temp_Remote_Measure | 温度遥测数据 | ||||
错误!未找到引用源。 | Attitude_Data_SDS | Attitude_Data | 姿态数据(φ,θ,ψ) | ||||
错误!未找到引用源。 | Attitude_Data_Time SDS | Attitude_Data_Time | 姿态数据获取时间t | ||||
错误!未找到引用源。 | Position_Data SDS | Position_Data | 位置数据(x,y,z) | ||||
错误!未找到引用源。 | Position_Data_Time SDS | Position_Data_Time | 位置数据获取时间t | ||||
错误!未找到引用源。 | EVS_orb_pos SDS | Earth_View_Start_Orbit_Position_Data | 对地观测起始时刻ECR轨道位置(x,y,z)(逐帧) | ||||
错误!未找到引用源。 | EVS_orb_vel SDS | Earth_View_Start_Orbit_Velocity_Data | 对地观测起始时刻ECR轨道速度(逐帧) | ||||
错误!未找到引用源。 | EVS_Attitude_angles SDS | Earth_View_Start_Attitude_Data | 对地观测起始时刻姿态角(φ,θ,ψ)(逐帧) | ||||
错误!未找到引用源。 | CV_Moon_Vector SDS | Cold_View_Moon_Vector | 冷空观测时刻仪器坐标系中月亮位置单位矢量 | ||||
错误!未找到引用源。 | CV_Sun_Vector SDS | Cold_View_Sun_Vector | 冷空观测时刻仪器坐标系中太阳位置单位矢量 | ||||
错误!未找到引用源。 | PRT_Tavg SDS | Averaged_PRT_Temperature_Data | PRT平均温度数据 | ||||
错误!未找到引用源。 | SPBB_DN_Avg SDS | Averaged_SpaceView_WarmbodyView_ DN_Data | 冷空、黑体计数值平均值 | ||||
错误!未找到引用源。 | Ira_scnlin_qc SDS | scan line quality flag | 扫描线质量标识字 | ||||
错误!未找到引用源。 | Ira_cal_qc SDS | calibration quality flag | 定标质量标识字 | ||||
错误!未找到引用源。 | Ira_pixel_qc SDS | pixel quality flag | 像元质量标识字 | ||||
表5-34 FY-3A微波温度计L1数据全局文件属性定义
描述 | 属性名称 | 数据类型 | 数量 | 值 |
卫星名称 | Satellite Name | 8-bit signed char | 不定长 | FY-3A |
仪器名称 | Sensor Name | 8-bit signed char | 不定长 | Microwave Temperature Sounder |
传感器代码 | Sensor Identification Code | 8-bit signed char | 不定长 | MWTS |
数据集名称 | Dataset Name | 8-bit signed char | 不定长 | Global MWTS Data |
文件名称 | File Name | 8-bit signed char | 不定长 | FY3A_MWTSX_GBAL_L1_YYYYMMDD_HHmm_060KM_MS.HDF |
文件别名 | File Alias Name | 8-bit signed char | 不定长 | |
产品生成地 | Responser | 8-bit signed char | 不定长 | NSMC |
处理软件版本号(如V1.0.0) | Version Of Software | 8-bit signed char | 不定长 | V 1.0.0 |
处理软件更新日期 | Software Revision Date | 8-bit signed char | 不定长 | |
定标系数版本号 | Version Of Coefficient Index | 8-bit signed char | 不定长 | |
定标系数更新日期 | Coefficient Index Revision Date | 8-bit signed char | 不定长 | |
数据观测开始日期(包括年月日) | Observing Beginning Date | 8-bit signed char | 不定长 | |
数据观测开始时间(包括时分秒毫秒) | Observing Beginning Time | 8-bit signed char | 不定长 | |
数据观测结束日期(包括年月日) | Observing Ending Date | 8-bit signed char | 不定长 | |
数据观测结束时间(包括时分秒毫秒) | Observing Ending Time | 8-bit signed char | 不定长 | |
数据创建日期(包括年月日) | Data Creating Date | 8-bit signed char | 不定长 | |
数据创建时间(包括时分秒毫秒) | Data Creating Time | 8-bit signed char | 不定长 | |
白天/夜间标志 | Day Or Night Flag | 8-bit signed char | 不定长 | |
轨道号 | Orbit Number | 32-bit unsigned Integer | 1 | |
轨道周期 | Orbit Period | 16-bit unsigned Integer | 1 | 102分钟 |
轨道方向 | Orbit Direction | 8-bit signed char | 1 | |
数据质量标记(1-5级) | Data Quality | 8-bit unsigned Integer | 1 | |
总扫描线数 | Number Of Scans | 32-bit signed Integer | 1 | |
白天模式扫描线数 | Number Of Day mode scans | 32-bit signed Integer | 1 | |
晚上模式扫描线数 | Number of Night mode scans | 32-bit signed Integer | 1 | |
不完整的扫描线数 | Incomplete Scans | 32-bit signed Integer | 1 | |
扫描线质量检验码 | QA_Scan_Flag | 8-bit unsigned Integer | nscans | |
象元质量检验码 | QA_Pixel_Flag | 16-bit unsigned Integer | nscans*15 | |
起始行号 | Begin Line Number | 16-bit unsigned Integer | 1 | |
结束行号 | End Line Number | 16-bit unsigned Integer | 1 | |
起始象元号 | Begin Pixel Number | 16-bit unsigned Integer | 1 | |
结束象元号 | End Pixel Number | 16-bit unsigned Integer | 1 | |
地球椭球参考坐标系ID(WGS84) | Reference Ellipsoid Model ID | 8-bit signed char | 1 | |
日地距离比 | Earth/Sun Distance Ratio | 64-bit floating point | 1 | |
地球半径(m) | Earth Radius | 64-bit floating point | 1 | |
地球扁率 | Earth Oblateness | 64-bit floating point | 1 | |
地球偏心率 | Earth Eccentricity | 64-bit floating point | 1 | |
历元时间 | EpochTime | 64-bit floating point | 1 | |
半长轴(KM) | SemimajorAxis | 64-bit floating point | 1 | |
偏心率 | Eccentricity | 64-bit floating point | 1 | |
倾角(度) | OrbitalInclination | 64-bit floating point | 1 | |
升交点赤经(度) | AscendingNodeLongitude | 64-bit floating point | 1 | |
近地点角(度) | PerigeeArgument | 64-bit floating point | 1 | |
平近地点角(度) | MeanAnomaly | 64-bit floating point | 1 | |
轨道4个角点纬度 | Orbit Point Latitude | 32-bit floating point | 4 | |
轨道4个角点经度 | Orbit Point Longitude | 32-bit floating point | 4 | |
HDF版本 | HDF Version | 8-bit signed char | 不定长 | 建议增加 |
文件的附加说明(可以对文件的使用、创建人等说明) | AdditionalAnotation | 8-bit signed char | 不定长 | |
表5-35 FY-3A微波温度计L1数据私有文件属性定义
描述 | 属性名称 | 数据类型 | 数量 | 值 |
应用标识 | Application ID | 16-bit unsigned Integer | 1 | 0807H |
扫描模态 | Scanning Mode | 16-bit unsigned Integer | 1 | 0100、0101 |
时钟更新指示(0 = none during this orbit; otherwise the record number of the first occurrence) | Clock Update Indicator | 16-bit unsigned Integer | 1 | |
总帧数 | Package_Number | 32-bit signed Integer | 1 | |
源包长度 | Package_Length | 32-bit signed Integer | 1 | |
完成数据预处理的扫描线数 | Count of Calibrated, Earth Located Scan Lines in this Data Set | 32-bit signed Integer | 1 | |
时序出错帧数 | Count of Time Sequence Error | 32-bit signed Integer | 1 | |
丢帧数 | Count of Missing Scan Lines | 32-bit signed Integer | 1 | |
实时定标失败帧数 | Real Time Cali. Scans | 32-bit signed Integer | 1 | |
参考定标系数版本号 | Version Of Coefficient Index | 8-bit signed char | 不定长 | |
参考定标系数更新日期 | Date Of Coefficient Index Revision | 8-bit signed char | 不定长 | |
辐射订正数据版本号 | Version Of Radiance Correcting Data | 8-bit signed char | 不定长 | |
辐射订正数据更新日期 | Date Of Radiance Correcting Data Version | 8-bit signed char | 不定长 | |
定标基础参数数据版本号 | Version Of Basic Calibration Data | 8-bit signed char | 不定长 | |
定标基础参数数据更新日期 | Date Of Basic Calibration Data Version | 8-bit signed char | 不定长 | |
PRT数量 | Number of PRT | 16-bit signed Integer | 4个 | |
黑体数量 | Number of Blackbody | 16-bit signed Integer | 1个 | |
黑体 / 外空观测数 | Number of Blackbody View | 16-bit signed Integer | 1个 | |
PRT温度转换系数 | PRT Temperature Coefficient | 32-bit floating point | 4*3个 | |
冷空观测订正值 | Cold Space Fixed Bias | 32-bit floating point | 4个 | |
黑体偏差订正 | Warm Target Fixed Bias | 32-bit floating point | 4个 | |
非线性订正因子 | Nonlinearity Coef. For 4 channels at different reference temperature | 32-bit floating point | 4*3个 | |
通道中心频率 | Temperature-radiance Central Wavenumber of 4 channels | 32-bit floating point | 4个 | |
数据覆盖时段定标系数增益平均值 | Coefficient AG | 32-bit floating point | 1 | 4 |
数据覆盖时段定标系数增益标准差 | Coefficient SG | 32-bit floating point | 1 | 4 |
数据覆盖时段定标系数截距平均值 | Coefficient AI | 32-bit floating point | 1 | 4 |
数据覆盖时段定标系数截距标准差 | Coefficient SI | 32-bit floating point | 1 | 4 |
数据覆盖时段定标系数二次项平均值 | Coefficient A2 | 32-bit floating point | 1 | 4 |
数据覆盖时段定标系数二次项标准差 | Coefficient S2 | 32-bit floating point | 1 | 4 |
数据覆盖时段仪器温度平均值 | Ave.. Instru.Temp | 32-bit floating point | 1 | 4 |
数据覆盖时段仪器温度标准差 | SIGM Instru.Temp | 32-bit floating point | 1 | 4 |
受到月亮污染的外空测点数 | Count of Scans Containing Lunar-Contaminated Space Views | 16-bit signed Integer | 1 | |
表5-36 FY-3A微波温度计L1数据科学数据集(SDS)定义
SDS 1. SDS Name | Type | Dimensions | Data Size | |
Scnlin | uint 16 | [nscans,1] | nscans*2 Bytes | |
注释:Nscans:扫描线数,每条线上有15个像素点 | ||||
SDS Attribute | Data Type | number | value | |
units | String | 1 | ‘none’ | |
valid range | Int32 | 2 | 0,10000 | |
Fill Value | Int32 | 1 | 32767 | |
long name | string | 1 | ‘Scan line number’ | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0.0 | |
SDS 2. SDS Name | Type | Dimensions | Data Size | |
Scnlin_daycnt | uint16 | [nscans,1] | nscans*2 Bytes | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘none’ | |
valid range | Int32 | 2 | 0,4650 | |
Fill Value | Int32 | 1 | 32767 | |
long name | string | 1 | ‘Scan line Time(day counter)’ | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0.0 | |
SDS 3. SDS Name | Type | Dimensions | Data Size | |
Scnlin_mscnt | uint32 | [nscans,1] | nscans*4 Bytes | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘milliseconds’ | |
valid range | Int32 | 2 | 0,864000000 | |
Fill Value | Int32 | 1 | 4294967295 | |
long name | string | 1 | ‘Scan line Time(milliseconds counter)’ | |
Slope | float32 | 1 | 1 | |
Intercept | float32 | 1 | 0.0 | |
SDS 4. SDS Name | Type | Dimensions | Data Size | |
Latitude | float32 | [Nscans,15] | 4* Nscans* 15 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘degree’ | |
valid_range | float64 | 2 | -90,90 | |
FillValue | float64 | 1 | 32767 | |
long_name | string | 1 | ‘Latitude’ | |
Slope | float64 | 1 | 1.0 | |
Intercept | float64 | 1 | 0.0 | |
band_name | string | 1 | ||
SDS 5. SDS Name | Type | Dimensions | Data Size | |
Longitude | float32 | [Nscans, 15] | 4 * Nscans* 15 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘degree’ | |
valid_range | float64 | 2 | -180,+180 | |
FillValue | float64 | 1 | 32767 | |
long_name | string | 1 | ‘Longitude’ | |
Slope | float64 | 1 | 1.0 | |
Intercept | float64 | 1 | 0.0 | |
band_name | string | 1 | ||
SDS 6. SDS Name | Type | Dimensions | Data Size | |
SolarAzimuth | Int16 | [Nscans, 15] | 2* Nscans*15 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘degree’ | |
valid_range | int32 | 2 | -18000,18000 | |
FillValue | int32 | 1 | 32767 | |
long_name | string | 1 | ‘Solar Azimuth’ | |
Slope | Float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
band_name | string | 1 | ||
SDS 7. SDS Name | Type | Dimensions | Data Size | |
SolarZenith | Int16 | [Nscans, 15] | 2*Nscans*15 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘degree’ | |
valid_range | int32 | 2 | 0,18000 | |
FillValue | int32 | 1 | 32767 | |
long_name | string | 1 | ‘Solar Zenith’ | |
Slope | float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
band_name | string | 1 | ||
SDS 8. SDS Name | Type | Dimensions | Data Size | |
SensorAzimuth | Int16 | [Nscans, 15] | 2*Nscans*15 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘degree’ | |
valid_range | Int32 | 2 | -18000,18000 | |
FillValue | int32 | 1 | 32767 | |
long_name | string | 1 | ‘Sensor Azimuth’ | |
Slope | float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
band_name | string | 1 | ||
SDS 9. SDS Name | Type | Dimensions | Data Size | |
SensorZenith | Int16 | [Nscans, 15] | 2*Nscans*15Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘degree’ | |
valid_range | int32 | 2 | 0,18000 | |
FillValue | int32 | 1 | 32767 | |
long_name | string | 1 | ‘Sensor Zenith’ | |
Slope | float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
band_name | string | 1 | ||
SDS 10. SDS Name | Type | Dimensions | Data Size | |
Pixel_View_Angle | Int16 | [Nscans,15] | 2* Nscans*15 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘degree’ | |
valid_range | int32 | 2 | -6000,6000 | |
FillValue | int32 | 1 | 32767 | |
long_name | string | 1 | ‘Pixel View Angle’ | |
Slope | float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
SDS 11. SDS Name | Type | Dimensions | Data Size | |
Height | Int16 | [Nscans,15] | 2* Nscans *15 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘meter’ | |
valid_range | int32 | 2 | -400,10000 | |
FillValue | int32 | 1 | 32767 | |
long_name | string | 1 | ‘Digital Elevation Measurement’ | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
band_name | string | 1 | ||
SDS 12. SDS Name | Type | Dimensions | Data Size | |
LandSeaMask | Uint8 | [Nscans,15] | 1* Nscans *15 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘none’ | |
valid_range | int32 | 2 | 1,5 | |
FillValue | int32 | 1 | 255 | |
long_name | string | 1 | ‘Land Sea Mask’ | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
band_name | string | 1 | ||
SDS 13. SDS Name | Type | Dimensions | Data Size | |
LandCover | Uint8 | [Nscans,15] | 1* Nscans *15 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘none’ | |
valid_range | int32 | 2 | 0,16 | |
FillValue | int32 | 1 | 32767 | |
long_name | string | 1 | ‘Land Cover’ | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
band_name | string | 1 | ||
SDS 14. SDS Name | Type | Dimensions | Data Size | |
Cal_Coefficient | int32 | [Nscans,4,3] | 4*(4*3)* Nscans Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘none’ | |
valid_range | int32 | 2 | -2000000000,2000000000 | |
FillValue | int32 | 1 | 2147483647 | |
long_name | string | 1 | ‘Calibration Coefficients’ | |
band_names | string | 1 | ‘Calibration Coefficients a0,a1,a2, 4 channels’ | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
band_name | string | 1 | ||
SDS 15. SDS Name | Type | Dimensions | Data Size | |
Raw_DN_Data | uint16 | [4,Nscans,15] | 2*4*Nscans*15 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘none’ | |
valid_range | int32 | 2 | 1,32767 | |
FillValue | Int32 | 1 | 65535 | |
long_name | string | 1 | ‘Raw Digital Number Data’ | |
band_names | string | 1 | ‘Channels 1 to 4’ | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
SDS 16. SDS Name | Type | Dimensions | Data Size | |
Earth_Obs_BT | Float 32 | [4,Nscans,15] | 4*4* Nscans*15 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘K’ | |
valid_range | float64 | 2 | 80,340 | |
FillValue | float64 | 1 | 66536 | |
long_name | string | 1 | ‘Earth Observation Brightness Temperature’ | |
band_names | string | 1 | ‘Channel 1 to 4’ | |
Slope | float64 | 1 | 0.01 | |
Intercept | float64 | 1 | 0.0 | |
SDS 17. SDS Name | Type | Dimensions | Data Size | |
Space_View | Uint16 | [Nscans,1] | 2 *Nscans*3 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘none’ | |
valid_range | Int32 | 2 | 1,16368 | |
Fill Value | int32 | 1 | 66536 | |
long_name | string | 1 | ‘Space View Count’ | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
SDS 18. SDS Name | Type | Dimensions | Data Size | |
Black_Body_View | Uint16 | [Nscans,1] | 2*Nscans*1 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘none’ | |
valid_range | int32 | 2 | 16368,32767 | |
Fill Value | int32 | 1 | 66535 | |
long_name | string | 1 | ‘Black Body View Count’ | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
SDS 19. SDS Name | Type | Dimensions | Data Size | |
Space_View_Ang | Uint16 | [Nscans,1] | 2* Nscans*1 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘none’ | |
valid_range | int32 | 2 | 8000,12000 | |
Fill Value | int32 | 1 | 66536 | |
long_name | string | 1 | ‘Space View Angle Count’ | |
Slope | float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
SDS 20. SDS Name | Type | Dimensions | Data Size | |
Black_Body_View_Ang | Uint16 | [Nscans,1] | 2* Nscans*1 Byte | |
SDS Attribute | Data Type | Number | Value | |
units | string | 1 | ‘none’ | |
valid_range | int32 | 2 | -2000,2000 | |
FillValue | int32 | 1 | 66535 | |
long_name | string | 1 | ‘Black Body View Angle Count’ | |
Slope | float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
SDS 21. SDS Name | Type | Dimensions | Data Size | |
PRT | Uint16 | [Nscans,4] | 2* Nscans*4 Byte | |
SDS Attribute | Data Type | Number | Value | |
units | string | 1 | ‘none’ | |
valid_range | int32 | 2 | 1,32767 | |
FillValue | int32 | 1 | 66535 | |
long_name | string | 1 | ‘Pr Temperature Measurement’ | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
SDS 22. SDS Name | Type | Dimensions | Data Size | |
Attitude_Data | Int16 | [Nscans,3] | 2* Nscans*3 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘degree’ | |
valid_range | int32 | 2 | -30,+30 | |
FillValue | int32 | 1 | 66536 | |
long_name | string | 1 | ‘Attitude_Data’ | |
Slope | float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
SDS 23. SDS Name | Type | Dimensions | Data Size | |
Attitude_Time | Uint32 | [Nscans,1] | 4* Nscans Byte | |
SDS Attribute | Data Type | number | value | |
units | string | 1 | ‘millisecond’ | |
valid_range | int32 | 2 | 0 , 86400000 | |
FillValue | int32 | 1 | 4294967295 | |
long_name | string | 1 | ‘Attitude Time ‘ | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
SDS 24. SDS Name | Type | Dimensions | Data Size | |
Position_Data | Int32 | [Nscans,3] | 4* Nscans*3 Byte | |
SDS Attribute | Data Type | number | value | |
units | string | 1 | ‘m’ | |
valid_range | int32 | 2 | -7300000 , +7300000 | |
FillValue | int32 | 1 | 2147483647 | |
long_name | string | 1 | ‘Position Data’ | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
SDS 25. SDS Name | Type | Dimensions | Data Size | |
Position_Time | Uint32 | [Nscans,1] | 4*Nscans Byte | |
SDS Attribute | Data Type | number | value | |
units | string | 1 | ‘millisecond’ | |
valid_range | int32 | 2 | 0 , 86400000 | |
FillValue | int32 | 1 | 4294967295 | |
long_name | string | 1 | ‘Position Time’ | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
SDS 26. SDS Name | Type | Dimensions | Data Size | |
EVS_orb_pos | Float64 | [Nscans,3] | 8*Nscans*3 Byte | |
SDS Attribute | Data Type | number | value | |
units | string | 1 | ‘meter’ | |
valid_range | Float64 | 2 | -7300000 , +7300000 | |
FillValue | Float64 | 1 | 4294967295 | |
long_name | string | 1 | ‘Orbit Position Data (x,y,z) when Earth View Start’ | |
Slope | Float64 | 1 | 1.0 | |
Intercept | Float64 | 1 | 0.0 | |
SDS 27. SDS Name | Type | Dimensions | Data Size | |
EVS_orb_vel | Float64 | [Nscans,3] | 8*Nscans*3 Byte | |
SDS Attribute | Data Type | number | value | |
units | string | 1 | ‘m/s’ | |
valid_range | Float64 | 2 | -7600,7600 | |
FillValue | Float64 | 1 | 65535 | |
long_name | string | 1 | ‘Orbit Velocity Data when Earth View Start(u,v,w)’ | |
Slope | Float64 | 1 | 1.0 | |
Intercept | Float64 | 1 | 0.0 | |
SDS 28. SDS Name | Type | Dimensions | Data Size | |
EVS_Attitude_angles | Float64 | [Nscans,3] | 8*Nscans*3 Byte | |
SDS Attribute | Data Type | number | value | |
units | string | 1 | ‘radians’ | |
valid_range | Float64 | 2 | -0.01,0.01 | |
FillValue | Float64 | 1 | 65535 | |
long_name | string | 1 | ‘Attitude Data when Earth View Start(φ,θ,ψ)’ | |
Slope | Float64 | 1 | 1.0 | |
Intercept | Float64 | 1 | 0.0 | |
SDS 29. SDS Name | Type | Dimensions | Data Size | |
CV_Moon_Vector | float32 | [Nscans,3] | 4*Nscans*3 Byte | |
SDS Attribute | Data Type | number | value | |
units | string | 1 | ‘none’ | |
valid_range | Float64 | 2 | -1,1 | |
FillValue | Float64 | 1 | 65535 | |
long_name | string | 1 | ‘Moon Vector at Cold View Position (x,y,z)’ | |
Slope | Float64 | 1 | 1.0 | |
Intercept | Float64 | 1 | 0.0 | |
band_name | string | 1 | ||
SDS 30. SDS Name | Type | Dimensions | Data Size | |
CV_Sun_Vector | float32 | [Nscans,3] | 4*Nscans*3 Byte | |
SDS Attribute | Data Type | number | value | |
units | string | 1 | ‘none’ | |
valid_range | Float64 | 2 | -1,1 | |
FillValue | Float64 | 1 | 65535 | |
long_name | string | 1 | ‘Sun Vector at Cold View Position (x,y,z)’ | |
Slope | Float64 | 1 | 1.0 | |
Intercept | Float64 | 1 | 0.0 | |
band_name | string | 1 | ||
SDS 31. SDS Name | Type | Dimensions | Data Size | |
PRT_Tavg | Float | [Nscans,4] | 2*Nscans*4 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘K’ | |
valid_range | int32 | 2 | 18000,35000 | |
FillValue | Int32 | 1 | 65535 | |
long_name | string | 1 | ‘Averaged PRT Temperature’ | |
Slope | float32 | 1 | 0.01 | |
Intercept | float32 | 1 | 0.0 | |
SDS 32. SDS Name | Type | Dimensions | Data Size | |
SPBB_DN_Avg | Float | [Nscans,8] | 2*Nscans*8 Byte | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | ‘none’ | |
valid_range | Int32 | 2 | 0,32767 | |
FillValue | Int32 | 1 | 65535 | |
long_name | string | 1 | ‘Averaged_SpaceView_WarmbodyView_DN_Data’ | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
SDS 33. SDS Name | Type | Dimensions | Data Size | |
scnlin_qc | Uint32 | [Nscans,1] | 4*Nscans Bytes | |
SDS Attribute | Data Type | number | value | |
units | string | 1 | “none” | |
valid_range | Int32 | 2 | 0,65535 | |
FillValue | Int32 | 1 | 0 | |
long_name | string | 1 | “scan line quality flag” | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
SDS 34. SDS Name | Type | Dimensions | Data Size | |
cal_qc | Uint16 | [Nscans,1] | 4*Nscans Bytes | |
SDS Attribute | Data Type | number | value | |
units | string | 1 | “none” | |
valid_range | Int32 | 2 | 0,65535 | |
FillValue | Int32 | 1 | 0 | |
long_name | string | 1 | “calibration quality flag” | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
SDS 35. SDS Name | Type | Dimensions | Data Size | |
pixel_qc | Uint16 | [Nscans,15] | 4*Nscans*15 Bytes | |
SDS Attribute | Data Type | number | Value | |
units | string | 1 | “none” | |
valid_range | Int32 | 2 | 0,65535 | |
FillValue | Int32 | 1 | 0 | |
long_name | string | 1 | “pixel quality flag” | |
Slope | float32 | 1 | 1.0 | |
Intercept | float32 | 1 | 0.0 | |
表5-37 FY-3A微波湿度计L1数据概况表
产品名称 | FY-3A微波湿度计L1数据 |
FY-3A MicroWave Humidity Sounder level 1 data set. | |
物理意义(中英文) | 位于高频(150~183GHz)微波水汽吸收带5个光谱通道的微波湿度计测值,经辐射定标和地球定位处理后生成的数据文件。 |
The geolocated and calibrated observations from MWHS instrument with 5 channels in 150~183GHz water vapor absorption band are included. | |
用途(中英文) | 主要用于大气湿度廓线反演,监测台风等 |
It is mainly used for retrieving atmospheric moisture profiles and monitoring Taifeng. | |
表5-38 FY-3A微波湿度计L1数据基本信息表
产品名称:FY-3A微波湿度计L1数据 | ||
文件名约定:FY3A_MWHSX_GBAL_L1_YYYYMMDD_HHmm_015KM_MS.HDF | ||
栏目 | 值 | 备注 |
卫星名 | FY3A | |
仪器名称 | MWHSX | |
数据区域类型 | GBAL | |
数据级别 | L1 | |
分辨率 | 15KM | 星下点 |
数据格式名称 | HDF | |
分块方式 | 弧段 | |
更新频率 | 14圈/天 | |
数据量 | 24*60*60/(8/3)*2048*5.0/天=335M/天 | |
表5-39 FY-3A微波湿度计L1数据HDF结构
L1数据全局文件属性 | |||
L1数据私有文件属性 | |||
科学数据集 | |||
科学数据集 | 科学数据集名(英文) | 科学数据集中文名 | |
SDS 1 | Scnlin SDS | Scan Line Number | 扫描线序号 |
SDS 2 | Scnlin_daycnt SDS | Scan Line Time(day counter) | 扫描线日计数 |
SDS 3 | Scnlin_mscnt SDS | Good Scan Line Time (miliseconds counter) | 检验过的第一个像元毫秒计数 |
SDS 4 | Latitude SDS | Latitude | 逐像元纬度数据 |
SDS 5 | Longitude SDS | Longitude | 逐像元经度数据 |
SDS 6 | SolarAzimuth SDS | Solar_Azimuth | 太阳方位角数据 |
SDS 7 | SolarZenith SDS | Solar_ Zenith | 太阳天顶角数据 |
SDS 8 | SensorAzimuth SDS | Sensor_Azimuth | 传感器方位角数据 |
SDS 9 | SensorZenith SDS | Sensor_Zenith | 传感器天顶角数据 |
SDS 10 | View_Angle SDS | View_Angle | 观测时序角编码数据 |
SDS 11 | Height SDS | Hight | 拔海高度数据 |
SDS 12 | LandSeaMask SDS | Land_Sea_Mask | 海陆掩码数据 |
SDS 13 | LandCover SDS | Land_Cover | 陆地覆盖类型数据 |
SDS 14 | Cal_Coefficient SDS | Cal_Coefficient | 5通道定标系数 |
SDS 15 | Raw_Data_DN SDS | Raw_Data_DN | 5通道原始计数值 |
SDS 16 | Objector_Brightness_Temperature SDS | Objector_BT | 5通道目标亮温 |
SDS 17 | Space_View_DN SDS | Space_View_DN | 外空观测计数值数据 |
SDS 18 | Space_View_Angle SDS | Space_View_Angle | 外空观测角编码数据 |
SDS 19 | Black_Body_View SDS | Black_Body_View | 黑体观测计数值数据 |
SDS 20 | Black_Body_View_Angle SDS | Black_Body_View_Angle | 黑体观测角编码数据 |
SDS 21 | Temp_Remote_Measure SDS | Temp_Remote_Measure | 温度遥测数据 |
SDS 22 | Attitude_Data_SDS | Attitude_Data | 姿态数据(φ,θ,ψ) |
SDS 23 | Attitude_Data_Time SDS | Attitude_Data_Time | 获取姿态数据的时间t |
SDS 24 | GPS Position_Data SDS | GPS Position_Data | GPS位置数据(X,Y,Z) |
SDS 25 | GPS Position_Data_Time SDS | GPS Position_Data_Time | 获取GPS数据的时间t |
SDS 26 | EVS_orb_pos SDS | Earth_View_Start_Orbit_Position_Data | 对地观测起始时刻ECR轨道位置(x,y,z) |
SDS 27 | EVS_orb_vel SDS | Earth_View_Start_Orbit_Velocity_Data | 对地观测起始时刻ECR轨道速度 |
SDS 28 | EVS_Attitude_angles SDS | Earth_View_Start_Attitude_Data | 对地观测起始时刻姿态角(φ,θ,ψ) |
SDS 29 | CV_Moon_Vector SDS | Cold_View_Moon_Vector | 冷空观测时刻仪器坐标系中月亮位置单位矢量 |
SDS 30 | CV_Sun_Vector SDS | Cold_View_Sun_Vector | 冷空观测时刻仪器坐标系中太阳位置单位矢量 |
SDS 31 | PRT_Tavg SDS | Averaged_PRT_Temperature_Data | 扫描线PRT平均温度数据 |
SDS 32 | SPBB_DN_Avg SDS | Averaged_SpaceView_WarmbodyView_ DN_Data | 扫描线冷空、黑体计数值平均值 |
SDS 33 | OBC_Data SDS | Onboard Basic Calibration Data | 工程参数 |
SDS 34 | Scnlin_qc SDS | Scan line quality flag | 扫描线质量标识字 |
SDS 35 | Cal_qc SDS | Calibration quality flag | 定标质量标识字 |
SDS 36 | Pixel_qc SDS | Pixel quality flag | 像元质量标识字 |
表格数据(Vdata) | |||
表格逻辑名 | 表格英文名称 | 表格中文名称 | |
Vdata 1 | V_QI | Quality Indicator Vdata | 预处理质量标识数据表 |
Vdata 2 | V_InstPerformance | Instrument Performance Vdata | 仪器性能参数数据表 |
Vdata 3 | V_Time_Data | Time Vdata | 时间数据表 |
表5-40 FY-3A微波湿度计L1数据全局文件属性定义
描述 | 属性名称 | 数据类型 | 数量 | 值 |
卫星名称 | Satellite Name | 8-bit signed char | 不定长 | FY3A |
仪器名称 | Sensor Name | 8-bit signed char | 不定长 | Microwave Humidity Sounder |
传感器代码 | Sensor Identification Code | 8-bit signed char | 不定长 | MWHS |
数据集名称 | Dataset Name | 8-bit signed char | 不定长 | Global MWHS Data |
文件名称 | File Name | 8-bit signed char | 不定长 | FY3A_MWHSX_GBAL_L1_YYYYMMDD_HHmm_015KM_MS.HDF |
文件别名 | File Alias Name | 8-bit signed char | 不定长 | |
产品生成地 | Responser | 8-bit signed char | 不定长 | NSMC |
处理软件版本号(如V1.0.0) | Version Of Software | 8-bit signed char | 不定长 | V 1.0.0 |
处理软件更新日期 | Software Revision Date | 8-bit signed char | 不定长 | |
定标系数版本号 | Version Of Coefficient Index | 8-bit signed char | 不定长 | |
定标系数更新日期 | Coefficient Index Revision Date | 8-bit signed char | 不定长 | |
数据观测开始日期(包括年月日) | Observing Beginning Date | 8-bit signed char | 不定长 | |
数据观测开始时间(包括时分秒毫秒) | Observing Beginning Time | 8-bit signed char | 不定长 | |
数据观测结束日期(包括年月日) | Observing Ending Date | 8-bit signed char | 不定长 | |
数据观测结束时间(包括时分秒毫秒) | Observing Ending Time | 8-bit signed char | 不定长 | |
数据创建日期(包括年月日) | Data Creating Date | 8-bit signed char | 不定长 | |
数据创建时间(包括时分秒毫秒) | Data Creating Time | 8-bit signed char | 不定长 | |
白天/夜间标志 | Day Or Night Flag | 8-bit signed char | 不定长 | |
轨道号 | Orbit Number | 32-bit unsigned Integer | 1 | |
轨道周期 | Orbit Period | 16-bit unsigned Integer | 1 | 102分钟 |
轨道方向 | Orbit Direction | 8-bit signed char | 不定长 | |
数据质量标记(1-5级) | Data Quality | 8-bit unsigned Integer | 1 | |
总扫描线数 | Number Of Scans | 32-bit signed Integer | 1 | |
白天模式扫描线数 | Number Of Day mode scans | 32-bit signed Integer | 1 | |
晚上模式扫描线数 | Number of Night mode scans | 32-bit signed Integer | 1 | |
不完整的扫描线数 | Incomplete Scans | 32-bit signed Integer | 1 | |
扫描线质量检验码 | QA_Scan_Flag | 8-bit unsigned Integer | nscans | |
象元质量检验码 | QA_Pixel_Flag | 16-bit unsigned Integer | nscans | |
起始行号 | Begin Line Number | 16-bit unsigned Integer | 1 | |
结束行号 | End Line Number | 16-bit unsigned Integer | 1 | |
起始象元号 | Begin Pixel Number | 16-bit unsigned Integer | 1 | |
结束象元号 | End Pixel Number | 16-bit unsigned Integer | 1 | |
地球椭球参考坐标系ID(WGS84) | Reference Ellipsoid Model ID | 8-bit signed char | 1 | |
日地距离比 | Earth/Sun Distance Ratio | 64-bit floating point | 1 | |
地球半径(m) | Earth Radius | 64-bit floating point | 1 | |
地球扁率 | Earth Oblateness | 64-bit floating point | 1 | |
地球偏心率 | Earth Eccentricity | 64-bit floating point | 1 | |
历元时间 | EpochTime | 64-bit floating point | 1 | |
半长轴(KM) | SemimajorAxis | 64-bit floating point | 1 | |
偏心率 | Eccentricity | 64-bit floating point | 1 | |
倾角(度) | OrbitalInclination | 64-bit floating point | 1 | |
升交点赤经(度) | AscendingNodeLongitude | 64-bit floating point | 1 | |
近地点角(度) | PerigeeArgument | 64-bit floating point | 1 | |
平近地点角(度) | MeanAnomaly | 64-bit floating point | 1 | |
轨道4个角点纬度 | Orbit Point Latitude | 32-bit floating point | 4 | |
轨道4个角点经度 | Orbit Point Longitude | 32-bit floating point | 4 | |
文件的附加说明(可以对文件的使用、创建人等说明) | AdditionalAnotation | 8-bit signed char | 不定长 | |
表5-41 FY-3A微波湿度计L1数据私有文件属性定义
描述 | 属性名称 | 数据类型 | 数量 | 值 |
应用标识 | Application ID | 16-bit unsigned Integer | 1 | |
扫描模态 | Scanning Mode | 16-bit unsigned Integer | 1 | |
时钟更新指示(0 =没有更新,否则代表时钟更新帧号。) | Clock Update Indicator | 16-bit unsigned Integer | 1 | |
总帧数 | Count_scnlines | 32-bit signed Integer | 1 | |
源包长度 | Packet_Length | 32-bit signed Integer | 1 | |
完成数据预处理的扫描线数 | Count_scnlines_calibrated | 32-bit signed Integer | 1 | |
时序出错帧数 | Count_TimeSeqErr | 32-bit signed Integer | 1 | |
丢帧数 | Count_Missing_scnlines | 32-bit signed Integer | 1 | |
定标失败帧数 | Count_CaliErr_scnlines | 32-bit signed Integer | 1 | |
辐射订正数据版本号 | Version Of Radiance Correcting Data | 8-bit signed char | 不定长 | |
辐射订正数据更新日期 | Date Of Radiance Correcting Data Version | 8-bit signed char | 不定长 | |
定标基础参数数据版本号 | Version Of Basic Calibration Data | 8-bit signed char | 不定长 | |
定标基础参数数据更新日期 | Date Of Basic Calibration Data Version | 8-bit signed char | 不定长 | |
PRT数量 | Number of PRT | 16-bit signed Integer | 1 | |
黑体数量 | Number of Blackbody | 16-bit signed Integer | 1 | |
黑体 / 外空观测数 | Number of Blackbody View | 16-bit signed Integer | 1 | |
PRT温度转换系数 | PRT Temperature Coefficient | 32-bit floating point | 20*3 | |
冷空观测订正值 | Cold Space Fixed Bias | 32-bit floating point | 5 | |
黑体偏差订正 | Warm Target Fixed Bias | 32-bit floating point | 5 | |
仪器参考温度 | Ref_Inst_Temp | 32-bit floating point | 5*4 | |
非线性订正因子 | Nonlinearity_Corr_Coef | 32-bit floating point | 4*5*3 | |
天线订正因子 | Antenna Coef. For 98 Pixel | 32-bit floating point | 98*2 | |
通道中心频率 | Chs_Central_Wavenumber | 32-bit floating point | 5 | |
数据覆盖时段定标系数增益平均值 | Coefficient AG | 32-bit floating point | 5 | |
数据覆盖时段定标系数增益标准差 | Coefficient SG | 32-bit floating point | 5 | |
数据覆盖时段定标系数截距平均值 | Coefficient AI | 32-bit floating point | 5 | |
数据覆盖时段定标系数截距标准差 | Coefficient SI | 32-bit floating point | 5 | |
数据覆盖时段定标系数二次项平均值 | Coefficient A2 | 32-bit floating point | 5 | |
数据覆盖时段定标系数二次项标准差 | Coefficient S2 | 32-bit floating point | 5 | |
数据覆盖时段仪器温度平均值 | AveInstru.Temp | 32-bit floating point | 2 | |
数据覆盖时段仪器温度标准差 | SIGM Instru.Temp | 32-bit floating point | 2 | |
数据覆盖时段黑体计数值平均值 | BB DN Ave. | 32-bit floating point | 5 | |
数据覆盖时段黑体计数值标准差 | BB DN Sigm | 32-bit floating point | 5 | |
数据覆盖时段冷空计数值平均值 | SP DN Ave. | 32-bit floating point | 5 | |
数据覆盖时段冷空计数值标准差 | SP DN Sigm | 32-bit floating point | 5 | |
数据覆盖时段PRT温度平均值 | PRT Temp Ave. | 32-bit floating point | 2 | |
数据覆盖时段PRT温度标准差 | PRT Temp Sigm | 32-bit floating point | 2 | |
外空测值受到月亮污染的扫描线数 | Count_Scnlines_SP_View_Lunar_Contaminated_ | 16-bit signed Integer | 1 | |
表5-42 FY-3A微波湿度计L1数据科学数据集(SDS)定义
SDS 36. SDS Name | Type | Dimensions | Data Size | ||||||
Scnlin | uint 16 | [nscans,1] | nscans*2 Bytes | ||||||
注释:Nscans:扫描线数,每条线上有98个像素点 | |||||||||
SDS Attribute | Data Type | number | value | ||||||
Units | String | 1 | ‘none’ | ||||||
long name | string | 1 | ‘Scan line number’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid range | int32 | 2 | 0,10000 | ||||||
Fill Value | int32 | 1 | 32767 | ||||||
Slope | float32 | 1 | 1 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 37. SDS Name | Type | Dimensions | Data Size | ||||||
Scnlin_daycnt | uint16 | [nscans,1] | nscans*2 Bytes | ||||||
SDS Attribute | Data Type | number | value | ||||||
Units | string | 1 | ‘none’ | ||||||
long name | string | 1 | ‘Scan line Time(day counter)’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid range | int32 | 2 | 0,4650 | ||||||
Fill Value | int32 | 1 | 7FFF | ||||||
Slope | float32 | 1 | 1 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 38. SDS Name | Type | Dimensions | Data Size | ||||||
Scnlin_mscnt | uint32 | [nscans,1] | nscans*4 Bytes | ||||||
SDS Attribute | Data Type | number | value | ||||||
Units | string | 1 | ‘milliseconds’ | ||||||
long name | string | 1 | ‘Scan line Time(milliseconds counter)’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid range | int32 | 2 | 0,864000000 | ||||||
Fill Value | int32 | 1 | FFFFFFFF | ||||||
Slope | float32 | 1 | 1 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 39. SDS Name | Type | Dimensions | Data Size | ||||||
Latitude | float32 | [Nscans,98] | 4* Nscans* 98 Byte | ||||||
SDS Attribute | Data Type | number | value | ||||||
units | string | 1 | ‘degree’ | ||||||
long_name | string | 1 | ‘Latitude’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | float64 | 2 | -90,90 | ||||||
FillValue | float64 | 1 | 7FFF | ||||||
Slope | float64 | 1 | 1.0 | ||||||
Intercept | float64 | 1 | 0.0 | ||||||
SDS 40. SDS Name | Type | Dimensions | Data Size | ||||||
Longitude | float32 | [Nscans, 98] | 4 * Nscans* 98 Byte | ||||||
SDS Attribute | Data Type | number | value | ||||||
units | string | 1 | ‘degree’ | ||||||
long_name | string | 1 | ‘Longitude’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | float64 | 2 | -180,+180 | ||||||
FillValue | float64 | 1 | 7FFF | ||||||
Slope | float64 | 1 | 1.0 | ||||||
Intercept | float64 | 1 | 0.0 | ||||||
SDS 41. SDS Name | Type | Dimensions | Data Size | ||||||
SolarAzimuth | Int16 | [Nscans, 98] | 2* Nscans*98 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘degree’ | ||||||
long_name | string | 1 | ‘Solar Azimuth’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | -18000,18000 | ||||||
FillValue | int32 | 1 | 7FFF | ||||||
Slope | float32 | 1 | 0.01 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 42. SDS Name | Type | Dimensions | Data Size | ||||||
SolarZenith | Int16 | [Nscans, 98] | 2*Nscans*98 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘degree’ | ||||||
long_name | string | 1 | ‘Solar Zenith’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | 0,18000 | ||||||
FillValue | int32 | 1 | 7FFF | ||||||
Slope | float32 | 1 | 0.01 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 43. SDS Name | Type | Dimensions | Data Size | ||||||
SensorAzimuth | Int16 | [Nscans, 98] | 2*Nscans*98 Byte | ||||||
SDS Attribute | Data Type | number | value | ||||||
units | string | 1 | ‘degree’ | ||||||
long_name | string | 1 | ‘Sensor Azimuth’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | -18000,18000 | ||||||
FillValue | int32 | 1 | 7FFF | ||||||
Slope | float32 | 1 | 0.01 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 44. SDS Name | Type | Dimensions | Data Size | ||||||
SensorZenith | Int16 | [Nscans, 98] | 2*Nscans*98Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘degree’ | ||||||
valid_range | int32 | 2 | 0,18000 | ||||||
long_name | string | 1 | ‘Sensor Zenith’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
FillValue | int32 | 1 | 7FFF | ||||||
Slope | float32 | 1 | 0.01 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 45. SDS Name | Type | Dimensions | Data Size | ||||||
Pixel_View_Angle | Int16 | [Nscans,98] | 2* Nscans*98 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘degree’ | ||||||
long_name | string | 1 | ‘Pixel View Angle’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | -6000,6000 | ||||||
FillValue | int32 | 1 | 7FFF | ||||||
Slope | float32 | 1 | 0.01 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 46. SDS Name | Type | Dimensions | Data Size | ||||||
Height | Int16 | [Nscans,98] | 2* Nscans *98 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘meter’ | ||||||
long_name | string | 1 | ‘Digital Elevation Measurement’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | -400,10000 | ||||||
FillValue | int32 | 1 | 7FFF | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 47. SDS Name | Type | Dimensions | Data Size | ||||||
LandSeaMask | Uint8 | [Nscans,98] | 1* Nscans *98 Byte | ||||||
SDS Attribute | Data Type | number | value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Land Sea Mask’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | 1,5 | ||||||
FillValue | int32 | 1 | 255 | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 48. SDS Name | Type | Dimensions | Data Size | ||||||
LandCover | Uint8 | [Nscans,98] | 1* Nscans *98 Byte | ||||||
SDS Attribute | Data Type | number | value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Land Cover’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | 0,16 | ||||||
FillValue | int32 | 1 | FF | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 49. SDS Name | Type | Dimensions | Data Size | ||||||
Cal_Coefficient | int32 | [Nscans,5,3] | 4*(5*3)* Nscans Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Calibration Coefficients’ | ||||||
band_names | string | 1 | ‘Calibration Coefficients a0,a1,a2, 5 channels’ | ||||||
valid_range | int32 | 2 | -2000000000,2000000000 | ||||||
FillValue | int32 | 1 | 7FFFFFFF | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 50. SDS Name | Type | Dimensions | Data Size | ||||||
Raw_DN_Data | uint16 | [5,Nscans,98] | 2*5*Nscans*98 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Raw Digital Number Data’ | ||||||
band_names | string | 1 | ‘Channels 1 to 5’ | ||||||
valid_range | int32 | 2 | 1,32767 | ||||||
FillValue | int32 | 1 | FFFF | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 51. SDS Name | Type | Dimensions | Data Size | ||||||
Earth_Obs_BT | Float 32 | [5,Nscans,98] | 4*5* Nscans*98 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘K’ | ||||||
long_name | string | 1 | ‘Earth Observation Brightness Temperature’ | ||||||
band_names | string | 1 | ‘Channel 1 to 5’ | ||||||
valid_range | int32 | 2 | 80,340 | ||||||
FillValue | int32 | 1 | FFFF | ||||||
Slope | float32 | 1 | 0.01 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 52. SDS Name | Type | Dimensions | Data Size | ||||||
Space_View | Uint16 | [Nscans,3,5] | 2 *Nscans*3*5 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Space View Count’ | ||||||
Band name | String | 1 | ‘ch1-5 views , 3 views each channel,’ | ||||||
valid_range | int32 | 2 | 1,16368 | ||||||
Fill Value | int32 | 1 | FFFF | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 53. SDS Name | Type | Dimensions | Data Size | ||||||
Black_Body_View | Uint16 | [Nscans,3,5] | 2*Nscans*3*5 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Black Body View Count’ | ||||||
Band name | String | 1 | ‘ch1-5 views, 3 views each channel,’’ | ||||||
valid_range | int32 | 2 | 16368,32767 | ||||||
Fill Value | int32 | 1 | FFFF | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 54. SDS Name | Type | Dimensions | Data Size | ||||||
Space_View_Ang | Uint16 | [Nscans,3] | 2* Nscans*3 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Space View Angle Count’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | 8000,12000 | ||||||
Fill Value | int32 | 1 | FFFF | ||||||
Slope | float32 | 1 | 0.01 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 55. SDS Name | Type | Dimensions | Data Size | ||||||
Black_Body_View_Ang | Uint16 | [Nscans,3] | 2* Nscans*3 Byte | ||||||
SDS Attribute | Data Type | Number | Value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Black Body View Angle Count’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | -2000,2000 | ||||||
FillValue | int32 | 1 | FFFF | ||||||
Slope | float32 | 1 | 0.01 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 56. SDS Name | Type | Dimensions | Data Size | ||||||
PRT | Uint16 | [Nscans,20] | 2* Nscans*20 Byte | ||||||
SDS Attribute | Data Type | Number | Value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Pr Temperature Measurement’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | 1,32767 | ||||||
FillValue | int32 | 1 | FFFF | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 57. SDS Name | Type | Dimensions | Data Size | ||||||
Attitude_Data | Int16 | [Nscans,3] | 2* Nscans*3 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘degree’ | ||||||
long_name | string | 1 | ‘Attitude Data’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | -30,+30 | ||||||
FillValue | int32 | 1 | FFFF | ||||||
Slope | float32 | 1 | 0.009 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 58. SDS Name | Type | Dimensions | Data Size | ||||||
Attitude_Time | Uint32 | [Nscans,1] | 4* Nscans Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘millisecond’ | ||||||
long_name | string | 1 | ‘Attitude Time ‘ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | 0 , 86400000 | ||||||
FillValue | int32 | 1 | FFFFFFFF | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 59. SDS Name | Type | Dimensions | Data Size | ||||||
GPS_Position_Data | Int32 | [Nscans,3] | 4* Nscans*3 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘m’ | ||||||
long_name | string | 1 | ‘GPS Position Data’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | -7300000 , +7300000 | ||||||
FillValue | int32 | 1 | 7FFFFFFF | ||||||
Slope | float32 | 1 | 0.1 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 60. SDS Name | Type | Dimensions | Data Size | ||||||
GPS_Position_Time | Uint32 | [Nscans,1] | 4*Nscans Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘millisecond’ | ||||||
long_name | string | 1 | ‘GPS Position Time’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | 0 , 86400000 | ||||||
FillValue | int32 | 1 | FFFFFFFF | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 61. SDS Name | Type | Dimensions | Data Size | ||||||
EVS_orb_pos | Float64 | [Nscans,3] | 8*Nscans*3 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘meter’ | ||||||
long_name | string | 1 | ‘Orbit Position Data (x,y,z) when Earth View Start’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | Float64 | 2 | -7300000 , +7300000 | ||||||
FillValue | Float64 | 1 | FFFFFFFF | ||||||
Slope | Float64 | 1 | 1.0 | ||||||
Intercept | Float64 | 1 | 0.0 | ||||||
SDS 62. SDS Name | Type | Dimensions | Data Size | ||||||
EVS_orb_vel | Float64 | [Nscans,3] | 8*Nscans*3 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘m/s’ | ||||||
long_name | string | 1 | ‘Orbit Velocity Data when Earth View Start(u,v,w)’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | Float64 | 2 | -7600,7600 | ||||||
FillValue | Float64 | 1 | FFFF | ||||||
Slope | Float64 | 1 | 1.0 | ||||||
Intercept | Float64 | 1 | 0.0 | ||||||
SDS 63. SDS Name | Type | Dimensions | Data Size | ||||||
EVS_Attitude_angles | Float64 | [Nscans,3] | 8*Nscans*3 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘radians’ | ||||||
long_name | string | 1 | ‘Attitude Data when Earth View Start(φ,θ,ψ)’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | Float64 | 2 | -0.01,0.01 | ||||||
FillValue | Float64 | 1 | FFFF | ||||||
Slope | Float64 | 1 | 1.0 | ||||||
Intercept | Float64 | 1 | 0.0 | ||||||
SDS 64. SDS Name | Type | Dimensions | Data Size | ||||||
CV_Moon_Vector | float32 | [Nscans,3,3] | 4*Nscans*3*3 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Moon Vector at Cold View Position (x,y,z)’ | ||||||
Band name | String | 1 | ‘1,2,3’ | ||||||
valid_range | Float64 | 2 | -1,1 | ||||||
FillValue | Float64 | 1 | FFFF | ||||||
Slope | Float64 | 1 | 1.0 | ||||||
Intercept | Float64 | 1 | 0.0 | ||||||
SDS 65. SDS Name | Type | Dimensions | Data Size | ||||||
CV_Sun_Vector | float32 | [Nscans,3,3] | 4*Nscans*3*3 Byte | ||||||
SDS Attribute | Data Type | number | value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Solar Vector at Cold View Position (x,y,z)’ | ||||||
Band name | String | 1 | ‘1,2,3’ | ||||||
valid_range | Float64 | 2 | -1,1 | ||||||
FillValue | Float64 | 1 | FFFF | ||||||
Slope | Float64 | 1 | 1.0 | ||||||
Intercept | Float64 | 1 | 0.0 | ||||||
SDS 66. SDS Name | Type | Dimensions | Data Size | ||||||
PRT_Tavg | Float32 | [Nscans,2] | 2*Nscans*2 Byte | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | ‘K’ | ||||||
long_name | string | 1 | ‘Averaged PRT Temperature’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | 18000,35000 | ||||||
FillValue | int32 | 1 | FFFF | ||||||
Slope | float32 | 1 | 0.01 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 67. SDS Name | Type | Dimensions | Data Size | ||||||
SPBB_DN_Avg | Float32 | [Nscans,10] | 2*Nscans*10 Byte | ||||||
SDS Attribute | Data Type | number | value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Averaged_SpaceView_WarmbodyView_DN_Data’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | 0,32767 | ||||||
FillValue | int32 | 1 | FFFF | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 68. SDS Name | Type | Dimensions | Data Size | ||||||
OBC | Uint16 | [Nscans,178] | 2*Nscans*178 Byte | ||||||
SDS Attribute | Data Type | number | value | ||||||
units | string | 1 | ‘none’ | ||||||
long_name | string | 1 | ‘Onboard Basic Calibration Data’ | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | int32 | 2 | 0, 65535 | ||||||
FillValue | int32 | 1 | FFFF | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 69. SDS Name | Type | Dimensions | Data Size | ||||||
scnlin_qc | Uint32 | [Nscans,1] | 4*Nscans Bytes | ||||||
SDS Attribute | Data Type | number | value | ||||||
units | string | 1 | “none” | ||||||
long_name | string | 1 | “scan line quality flag” | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | uint16 | 2 | 0,65535 | ||||||
FillValue | uint16 | 1 | 0 | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 70. SDS Name | Type | Dimensions | Data Size | ||||||
cal_qc | Uint16 | [Nscans,1] | 2*Nscans Bytes | ||||||
SDS Attribute | Data Type | number | value | ||||||
units | string | 1 | “none” | ||||||
long_name | string | 1 | “calibration quality flag” | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | uint16 | 2 | 0,65535 | ||||||
FillValue | uint16 | 1 | 0 | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
SDS 71. SDS Name | Type | Dimensions | Data Size | ||||||
pixel_qc | Uint16 | [Nscans,98] | 2*Nscans*98 Bytes | ||||||
SDS Attribute | Data Type | number | Value | ||||||
units | string | 1 | “none” | ||||||
long_name | string | 1 | “pixel quality flag” | ||||||
Band name | String | 1 | ‘none’ | ||||||
valid_range | uint16 | 2 | 0,65535 | ||||||
FillValue | uint16 | 1 | 0 | ||||||
Slope | float32 | 1 | 1.0 | ||||||
Intercept | float32 | 1 | 0.0 | ||||||
表5-43 风云三号微波湿度计L1数据表格数据(Vdata)定义
Vdata名称 | Quality Indicator Vdata质量检验数据表 | ||
数据域_1名称 | Package_Counter 包序号 | 数据类型 | Int16 |
数据域_2名称 | DPPS Quality Flag 预处理质量标识码 | 数据类型 | Int32 |
数据域_3名称 | Calibration Quality Flag 定标质量标识(0=正常定标,1=参考定标,2=未定标) | 数据类型 | int16 |
数据域_4名称 | Geo_Location Quality Flag 定位质量标识(0=正常GPS定位,1=TLE定标,2=数值积分算法,3=未定位) | 数据类型 | Int16 |
Vdata名称 | Instrument Performance Vdata仪器性能参数数据表 | |||||||
数据域_1名称 | Application Flag 应用标识 | 数据类型 | Int16 | |||||
数据域_2名称 | Data Package Type 数据包类型标识 | 数据类型 | Int16 | |||||
数据域_3名称 | Package Counter 包序号 | 数据类型 | Int16 | |||||
数据域_4名称 | Package Length 源包长度 | 数据类型 | Int16 | |||||
数据域_5名称 | A/D Flag A/D切换标识 | 数据类型 | Int16 | |||||
数据域_6名称 | AD Busy AD忙信号 | 数据类型 | Int16 | |||||
数据域_7名称 | Software Malfunction Record 软件走飞记录 | 数据类型 | Int16 | |||||
数据域_8名称 | Software Working Mode Flag 软件工作模式标识 (F0H=正常,0F=不正常) | 数据类型 | Int16 | |||||
数据域_9名称 | Cell Status 电源状态 | 数据类型 | Int8 | |||||
数据域_10名称 | AGC Flag AGC注入标识 | 数据类型 | Int8 | |||||
数据域_11名称 | Scan Mode 扫描模式 | 数据类型 | Int16 | |||||
数据域_12名称 | Scan Bias or Pointing Angle 扫描机械偏差或定点角度 | 数据类型 | Uint16 | |||||
数据域_13名称 | 27V I Tele-Measure 27V电流遥测 | 数据类型 | Uint16 | |||||
数据域_14名称 | 5V Voltage Detection 5V电平检测 | 数据类型 | Uint16 | |||||
数据域_15名称 | The Last Inner Command 上次执行过的内部指令 | 数据类型 | Int8 | |||||
数据域_16名称 | Count of Reset Signal RESET信号的复位次数 | 数据类型 | Int8 | |||||
数据域_17名称 | AGC Data for Channel 1 1通道AGC数据 | 数据类型 | Int16 | |||||
数据域_18名称 | AGC Data for Channel 2 2通道AGC数据 | 数据类型 | Int16 | |||||
数据域_19名称 | AGC Data for Channel 3 3通道AGC数据 | 数据类型 | Int16 | |||||
数据域_20名称 | AGC Data for Channel 4 4通道AGC数据 | 数据类型 | Int16 | |||||
数据域_21名称 | AGC Data for Channel 5 5通道AGC数据 | 数据类型 | Int16 | |||||
数据域_22名称 | Digital Control Unit 数控单元温度检测 | 数据类型 | float32 | |||||
数据域_23名称 | Cell Control Unit 电源单元温度检测 | 数据类型 | float32 | |||||
数据域_24名称 | Motor Temperature 1 电机温度检测一 | 数据类型 | float32 | |||||
数据域_25名称 | Motor Temperature 2 电机温度检测二 | 数据类型 | float32 | |||||
数据域_26名称 | Antenna Mask Temperature 1 天线罩温度检测一 | 数据类型 | float32 | |||||
数据域_27名称 | Antenna Mask Temperature 2 天线罩温度检测二 | 数据类型 | float32 | |||||
数据域_28名称 | FET 150GHz Amplifier Temperature 150GHz前端温度检测 | 数据类型 | float32 | |||||
数据域_29名称 | Mixer 150GHz Temperature 150GHz中频温度检测 | 数据类型 | float32 | |||||
数据域_30名称 | FET 183GHz Amplifier Temperature 183GHz前端温度检测 | 数据类型 | float32 | |||||
数据域_31名称 | FET 183GHz Amplifier Temperature 183GHz中频温度检测 | 数据类型 | float32 | |||||
Vdata名称 | Time Vdata时间数据表 | ||
数据域_1名称 | Package_Counter 包序号 | 数据类型 | Int16 |
数据域_2名称 | Good Scan Time for the first pixel 检验过的第1个观测像元时间码 | 数据类型 | Integer32 |
数据域_3名称 | Raw Scan Time for the first pixel 第1个观测像元原始时间码 | 数据类型 | Integer32 |
数据域_4名称 | Raw Scan Time for the 49th pixel 第49个观测像元原始时间码 | 数据类型 | Integer32 |
数据域_5名称 | Raw ScanTime for the 50th pixel 第50个观测像元原始时间码 | 数据类型 | Integer32 |
数据域_6名称 | Raw Scan Time for the 98th pixel 第98个观测像元原始时间码 | 数据类型 | Integer32 |
数据域_7名称 | Quality Flag for Time Data 时间码质量检验标识 | 数据类型 | Int16 |