风云三号微波大气探测载荷辐射定标  

Radiometric Calibration Technology of Microwave Atmospheric Sounders of FY-3 Satellites

作　　者：谷松岩[1] 郭杨[1] 窦芳丽[1] 吴琼[1] 卢乃锰[1] Gu Songyan;Guo Yang;Dou Fangli;Wu Qiong;Lu Naimang(National Satellite Meteorological Center,China Meteorological Administration,Beijing 100081,China)

机构地区：[1]国家卫星气象中心,中国气象局,北京100081

出　　处：《遥感技术与应用》2021年第1期141-154,共14页Remote Sensing Technology and Application

基　　金：国家重点研发计划重点专项“国产多系列遥感卫星历史资料再定标技术”(2018YFB0504900);“微波载荷历史数据再定标共性技术”(2018YFB0504902);国家自然科学基金面上项目“风云卫星毫米波大气湿度探测仪在轨月球相对定标”(41775020);国家自然科学基金青年科学基金项目“风云卫星微波双氧吸收通道降雪反演方法研究”(42005105)。

摘　　要：风云三号气象卫星是我国第二代极轨业务气象卫星,具有全球、全天候和多光谱探测能力,装载有微波温度计和微波湿度计2台微波大气探测载荷,自2008年首发星升空后,风云三号微波大气探测载荷资料在防灾减灾和数值天气预报同化应用中发挥了积极作用。风云三号气象卫星微波载荷辐射定标是从原始观测计数值出发获取目标亮温的数据处理技术过程,包括发射前定标、在轨星上定标、综合辐射定标和历史资料再定标4个技术环节。精确的辐射定标是星载被动微波辐射计遥感资料定量应用的基础。本文综述了风云三号气象卫星微波大气探测载荷综合辐射定标技术,介绍了风云三号微波大气探测载荷综合辐射定标基本原理及技术现状,展望了风云气象卫星微波大气探测载荷综合辐射定标技术未来发展。FY-3 meteorological satellite is the second generation of polar orbit operational meteorological satellite in China.It has global,all-weather and multispectral detection capabilities,and is loaded with two microwave atmospheric sounding payloads of MWTS and MWHS.Since the first satellite launched in 2008,FY-3 microwave atmospheric sounders have played an active role in disaster prevention and numerical weather prediction.The radiometric calibration of FY-3 meteorological satellite is a data processing process of obtaining the target brightness temperature from the original observation data,which includes four technical links:pre-launch calibration,on orbit calibration,comprehensive radiometric calibration and historical data re-calibration.Accurate radiometric calibration is the basis of quantitative application of satellite passive microwave radiometer remote sensing data.This paper summarizes the comprehensive radiometric calibration technology of the microwave atmospheric sounders of FY-3 meteorological satellite,expounds the basic principle and technical status of the comprehensive radiometric calibration technology of the microwave atmospheric sounding load of FY-3 meteorological satellite,and looks forward to the future development of the comprehensive radiometric calibration technology of the microwave atmospheric sounding load of FY-3 meteorological satellite.

关 键 词：风云三号气象卫星 微波大气探测载荷 综合辐射定标 交叉定标 外定标 

分 类 号：P412.27[天文地球—大气科学及气象学]