中国首颗降水测量卫星(风云三号G星)的探测能力概述与展望  

Overview and prospect of the detection capability of China's first precipitation measurement satellite FY-3G

作　　者：谷松岩[1,2,3] 张鹏 陈林[1,2,3] 商建 张宏伟[4] 林曼筠 朱爱军 贾树泽[1,2,3] 尹红刚[1,2,3] 孙逢林 徐寒列[1,2,3] 王皓飞 李路[1,2,3] 吴琼 郭杨[1,2,3] 窦芳丽 武胜利[1,2,3] GU Songyan;ZHANG Peng;CHEN Lin;SHANG Jian;ZHANG Hongwei;LIN Manyun;ZHU Aijun;JIA Shuze;YIN Honggang;SUN Fenglin;XU Hanlie;WANG Haofei;LI Lu;WU Qiong;GUO Yang;DOU Fangli;WU Shengli(Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites,China Meteorological Administration,Beijing 100081;National Satellite Meteorology Satellite Center,Beijing 100081;Xu Jianmin Meteorological Satellite Innovation Center,Beijing 100081;Shanghai Aerospace Technology Research Institute,Shanghai 201109)

机构地区：[1]中国气象局中国遥感卫星辐射测量和定标重点开放实验室,北京100081 [2]国家卫星气象中心,北京100081 [3]许健民气象卫星创新中心,北京100081 [4]上海航天技术研究院,上海201109

出　　处：《暴雨灾害》2023年第5期489-498,共10页Torrential Rain and Disasters

基　　金：国家重点研发计划项目(2022YFB390260X);国家重大工程(风云三号03批气象卫星工程)。

摘　　要：2023年4月16日09时36分(北京时)中国首颗降水测量卫星—风云三号G星(FY-3G)成功发射,本文在介绍风云三号降水星技术特征的基础上,着重分析FY-3G降水探测能力及在暴雨监测中的应用前景。结果表明:卫星轨道高度407 km、倾角50°,装载了Ka/Ku双频降水测量雷达、微波和光学成像仪的FY-3G卫星,可对影响中国大部分地区的台风、暴雨、强对流等灾害性天气系统三维结构进行探测。FY-3G在设计层面上,降水探测能力与目前美国第二代全球降水测量计划(GPM)核心星(GPMCO)相当,在载荷类型、数量、通道设置等方面优于GPMCO卫星。FY-3G业务运行后将与风云三号上午、下午和黎明星等其他极轨气象卫星以及风云高轨静止卫星组成风云降水探测星座体系,提升风云卫星星座的降水总体探测能力,为气象防灾减灾提供更强的基础支撑。Based on introducing the technical characteristics of FY-3G,which is China's first precipitation measurement satellite and suc⁃cessfully launched at 09∶36 BT on April 16 in 2023,this paper focuses on the precipitation detection capabilities and application prospect in rainstorm monitoring of FY-3G.The results show that,with an orbit at 407 km and an inclination angle of 50°,and equipped with a du⁃al-frequency Ka/Ku band precipitation measurement radar,microwave,and optical imaging instruments,the FY-3G satellite can detect the three-dimensional structure of disastrous weather systems such as typhoon,heavy rainfall,and other strong convection events in most of Chi⁃na.At the design level,FY-3G has precipitation detection capabilities comparable to the current US Second Generation Global Precipitation Measurement Program(GPM)Core Satellite(GPMCO),but better payload types,quantities,and channel settings compared with the GPMCO satellite.After the service operation,the FY-3G satellite,together with other polar-orbiting meteorological satellites such as FY-3 AM,PM,and EM,as well as high-orbit geostationary satellites,will form the Fengyun precipitation detection constellation system,which will improve the overall precipitation detection capability of the Fengyun Satellite constellation and provide stronger basic support for meteorological di⁃saster prevention and mitigation.

关 键 词：风云三号降水星 降水探测能力 双频降水测量雷达 地面应用系统 

分 类 号：P405[天文地球—大气科学及气象学]