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A rapid assessment of MWRI-RM/FY3G brightness temperature

Wenying He Xinran Xia Shengli Wu Peng Zhang Hongbin Chen Xiang'ao Xia Yuquan Zhou Miao Cai

大气和海洋科学快报（英文版）2024，Vol.17Issue(3)：42-46,5.

大气和海洋科学快报（英文版）2024，Vol.17Issue(3)：42-46,5.DOI:10.1016/j.aosl.2024.100466

A rapid assessment of MWRI-RM/FY3G brightness temperature

Wenying He ¹Xinran Xia ²Shengli Wu ³Peng Zhang ³Hongbin Chen ¹Xiang'ao Xia ¹Yuquan Zhou ⁴Miao Cai⁴

作者信息

1. LAGEO,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing,China||College of Earth and Planetary Sciences,University of Chinese Academy of Sciences,Beijing,China
2. LAGEO,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing,China||School of Hydrology and Water Resources,Nanjing University of Information Science & Technology,Nanjing,China
3. National Satellite Meteorological Centre,Chinese Meteorological Administration,Beijing,China
4. Key Laboratory of Cloud-Precipitation Physics and Weather Modification,CMA,Beijing,China
折叠

摘要

Abstract

2023年4月发射的FY-3G上搭载17个频率的测雨微波成像仪(MWRI-RM),其业务定标的微波亮温(Tb)数据于2023年10月23日公开发布.本文比对了发布10天的MWRI-RM与全球降水测量(GPM)卫星上的微波成像仪(GMI)相匹配的Tb数据,并借助辐射传输模式进行双差分(DD)交叉定标分析,旨在快速评估新一代MWRI-RM观测数据质量.观测比较表明,MWRI-RM与GMI测量的Tb一致性很好,大多通道的平均偏差(MBE)和均方根误差(RMSE)均小于1 K.两种传感器由于观测角度略有不同在水面产生约0.5 K差异.DD分析也展示出MWRI-RM的大多数通道性能与GMI相当接近,尤其是首次启用的高频166 GHz和183 GHz.

关键词

FY3G/MWRI-RM/GMI/亮度温度/双差分方法

Key words

FY3G/MWRI-RM/GMI/Brightness temperature/Double difference

引用本文复制引用

Wenying He,Xinran Xia,Shengli Wu,Peng Zhang,Hongbin Chen,Xiang'ao Xia,Yuquan Zhou,Miao Cai..A rapid assessment of MWRI-RM/FY3G brightness temperature[J].大气和海洋科学快报（英文版）,2024,17(3):42-46,5.

基金项目

This work was supported by the National Key R&D Program of China[grant number 2022YFF0801301],the National Natural Science Foundation of China[grant number 41575033],the Fengyun Satellite Application Pioneer Project[grant number FY-APP-2022.0111],and the Natural Science Foundation of Jiangsu Province[grant number BK20231148]. （）

大气和海洋科学快报（英文版）

ISSN：1674-2834

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