Remote Sensing Technology and Application, Volume. 39, Issue 4, 850(2024)

Hyperspectral Infrared Atmospheric Vertical Sounder-II Atmospheric Product Inversion System Design

Yuhang GUO, Xiaoying LI, Tianhai CHENG, Shenshen LI, Xinyuan ZHANG, Wenjing LU, and Weifang FANG
Author Affiliations
  • Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing100094, China
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    Figures & Tables(15)
    HIRAS-II Observation Mode
    Inversion System Framework of Hyperspectral Infrared Atmospheric Vertical Sounder-II L2 product
    Input parameter processing flow
    Flowchart of the system data inversion
    Validation of CH4 profile inversion results
    CH4 column concentration deviations
    Validation of CH4 profile inversion results
    O3 column concentration deviations
    CO2 column concentration deviations
    • Table 1. Main performance index of HIRAS-II

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      Table 1. Main performance index of HIRAS-II

      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 2. Spectral characteristics of HIRAS-II

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      Table 2. Spectral characteristics 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 3. Main attributes of HIRAS-Ⅱ L1 data

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      Table 3. Main attributes of HIRAS-Ⅱ L1 data

      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 4. Key attributes of L2 products

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      Table 4. Key attributes of L2 products

      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 5. Average time of HIRAS-II system inversion

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      Table 5. Average time of HIRAS-II system inversion

      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 6. Information on HIRAS-II test data

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      Table 6. Information on HIRAS-II test data

      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
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    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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    Paper Information

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    Received: Sep. 18, 2023

    Accepted: --

    Published Online: Jan. 6, 2025

    The Author Email:

    DOI:10.11873/j.issn.1004-0323.2024.4.0850

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