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首页> 外文期刊>Geoscience and Remote Sensing, IEEE Transactions on >Intercalibration of FY-2C/D/E Infrared Channels Using AIRS
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Intercalibration of FY-2C/D/E Infrared Channels Using AIRS

机译：使用AIRS对FY-2C / D / E红外通道进行相互校准

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摘要

The Fengyun (FY)-2 series satellites are the first-generation geosynchronous (GEO) Earth observation satellites operated by the National Satellite Meteorological Center (NSMC), China Meteorological Administration (CMA). The FY-2 satellites' main payload is a multispectral imager. The radiances from the FY-2C/D/E imagers were compared to the Atmospheric Infrared Sounder (AIRS), which is in low Earth orbit (LEO) on Aqua, a National Aeronautics and Space Administration satellite. The intercalibration of FY-2C/D/E infrared (IR) channels using AIRS was carried out based on the Global Space-based Inter-Calibration System (GSICS) GEO–LEO intercalibration algorithm. All the FY-2C/D/E data archived at the Cooperative Institute for Meteorological Satellite Studies, Space Science and Engineering Center, University of Wisconsin-Madison, Madison, WI, USA, were processed and compared with their operational calibrations. Select comparisons and longer term analyses between the new intercalibrated results and the operational calibrations of FY-2C/D/E's IR channels were demonstrated. The results show that the current operational calibration for FY-2C/D/E does not compare favorably based on the FY–AIRS intercalibration. The future operational calibration of FY-2D and FY-2E could be revised using GSICS corrections from the intercalibration with AIRS. The historical FY-2C/D/E data could be recalibrated with the GSICS GEO–LEO intercalibration algorithm at NSMC/CMA.
机译：风云（FY）-2系列卫星是由中国气象局（CMA）的国家卫星气象中心（NSMC）运营的第一代地球同步（GEO）地球观测卫星。 FY-2卫星的主要有效载荷是一台多光谱成像仪。将FY-2C / D / E成像仪的辐射与大气红外测深仪（AIRS）进行了比较，后者位于美国国家航空航天局卫星Aqua的低地球轨道（LEO）中。基于AIRS的FY-2C / D / E红外（IR）通道相互校准是基于全球空基相互校准系统（GSICS）GEO-LEO相互校准算法进行的。处理并保存了美国威斯康星大学麦迪逊分校，美国威斯康星州麦迪逊分校，气象卫星研究合作研究所，太空科学与工程中心存档的所有FY-2C / D / E数据，并将其与运行校准进行了比较。演示了新的相互校准结果与FY-2C / D / E红外通道的运行校准之间的选择比较和长期分析。结果表明，基于FY-AIRS相互校准，当前对FY-2C / D / E的操作校准并不理想。 FY-2D和FY-2E的未来运行校准可以使用与AIRS互校准的GSICS修正进行修订。 FY-2C / D / E的历史数据可以在NSMC / CMA用GSICS GEO-LEO互校准算法进行重新校准。

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