• Remote Sensing Technology and Application
  • Vol. 39, Issue 4, 850 (2024)
Yuhang GUO, Xiaoying LI, Tianhai CHENG, Shenshen LI..., Xinyuan ZHANG, Wenjing LU and Weifang FANG|Show fewer author(s)
Author Affiliations
  • Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing100094, China
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    DOI: 10.11873/j.issn.1004-0323.2024.4.0850 Cite this Article
    Yuhang GUO, Xiaoying LI, Tianhai CHENG, Shenshen LI, Xinyuan ZHANG, Wenjing LU, Weifang FANG. Hyperspectral Infrared Atmospheric Vertical Sounder-II Atmospheric Product Inversion System Design[J]. Remote Sensing Technology and Application, 2024, 39(4): 850 Copy Citation Text show less
    HIRAS-II Observation Mode
    Fig. 1. HIRAS-II Observation Mode
    Inversion System Framework of Hyperspectral Infrared Atmospheric Vertical Sounder-II L2 product
    Fig. 2. Inversion System Framework of Hyperspectral Infrared Atmospheric Vertical Sounder-II L2 product
    Input parameter processing flow
    Fig. 3. Input parameter processing flow
    Flowchart of the system data inversion
    Fig. 4. Flowchart of the system data inversion
    Validation of CH4 profile inversion results
    Fig. 5. Validation of CH4 profile inversion results
    CH4 column concentration deviations
    Fig. 6. CH4 column concentration deviations
    Validation of CH4 profile inversion results
    Fig. 7. Validation of CH4 profile inversion results
    O3 column concentration deviations
    Fig. 8. O3 column concentration deviations
    CO2 column concentration deviations
    Fig. 9. CO2 column concentration deviations
    仪器参数指标
    最大扫描张角±(60.4±0.1)°
    象素/扫描线252(28×9)
    视场角
    扫描周期8±0.1s
    焦平面探测器配置(元)3×3
    仪器扫描指向精度0.06°
    指向稳定度0.45毫弧(mard)
    Table 1. Main performance index of HIRAS-II
    波段光谱范围(cm-1)通道数光谱分辨率(cm-1)
    长波IR648.75~1 169.3758340.625
    中波IR1 167.5~1 921.251 2070.625
    短波IR1 919.375~2 551.251 0120.625
    Table 2. Spectral characteristics of HIRAS-II
    属性类型属性内容数据维度
    卫星载荷名FY3E HIRAS-Ⅱ
    文件命名格式FY3E_HIRAS_GRAN_L1_YYYYMMDD_HHmm_014KM_Vn.HDF
    光谱响应函数Sinc
    长波实部辐射ES_RealLW(37,28,9,834)
    中波实部辐射ES_RealMW1(37,28,9,1207)
    短波实部辐射ES_RealMW2(37,28,9,1012)
    Table 3. Main attributes of HIRAS-Ⅱ L1 data
    属性分组属性名称属性内容
    DATAPressure垂直压力层
    CH4_Profiles廓线值
    CH4_Prior_profile先验廓线
    CH4_Column柱浓度值
    XCH4干柱浓度值
    Observation_error观测误差
    Prior_uncertainty先验不确定性
    GeolocationLatitude纬度
    Longitude经度
    Sensor_Azimuth仪器方位角
    Sensor_Zenith仪器天顶角
    Solar_Azimuth太阳方位角
    Solar_Zenith太阳天顶角
    Table 4. Key attributes of L2 products
    产品单组反演平均用时产品反演平均用时
    CH4廓线和柱浓度9分41秒6小时08分48秒
    O3廓线和柱浓度7分01秒4小时32分33秒
    CO2柱浓度8分19秒5小时11分14秒
    Table 5. Average time of HIRAS-II system inversion
    探测时间轨道号经纬度范围
    20220911_0540614830° N~51° N;8° W~24° E
    20220911_1705615537° N~58° N;22° W~14° E
    20220912_0520616233° N~54° N;3° W~31° E
    20220912_1645616934° N~55° N;15° W~19° E
    20220913_0500617635° N~57° N;2° E~38° E
    20220920_0610627630° N~51° N;16° W~16° E
    20220920_1555628242° N~63° N;10° W~31° E
    20220921_0550629033° N~54° N;10° W~23° E
    20220921_1535629639° N~60° N;2° W~37° E
    20220921_1535629734° N~55° N;23° W~12° E
    20220922_0530630435° N~57° N;5° W~30° E
    20220922_1655631131° N~52° N;16° W~17° E
    Table 6. Information on HIRAS-II test data
    Yuhang GUO, Xiaoying LI, Tianhai CHENG, Shenshen LI, Xinyuan ZHANG, Wenjing LU, Weifang FANG. Hyperspectral Infrared Atmospheric Vertical Sounder-II Atmospheric Product Inversion System Design[J]. Remote Sensing Technology and Application, 2024, 39(4): 850
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