中国工程科学Issue(7)：92-100,9.
FY-3A/MWHS在轨辐射定标及结果分析
FY-3A/MWHS data calibration and validation analysis
摘要
Abstract
In this paper,the method for FY-3A/MWHS calibration in-orbit has been introduced. Radio-metric calibration of FY-3A/MWHS on orbit has been performed based on the T/V test results and surface lab performances test results. It is confirmed that the system of radiometric calibration for MWHS is successful,and performs well on orbit. The variations among space views and warm target views in the interval of scan lines are generally within 20 counts. And the temperature fluctuation of warm target is within 0.5 K in a single pass. Due to the accuracy of the nonlinearity parameters,the radiance calibration of MWHS agrees well with NOAA-17/AMSU-B. The brightness temperature differences between FY-3 MWHS and NOAA-17/AMSU-B at simultane-ous cross overpass points are less than 1.5 K. That is the foundation of quantitative application for the data of FY-3A/MWHS in numerical weather prediction(NWP). The method of calibration and validation for FY-3A/MWHS will be a good demo for the other passive microwave sounder in the future.关键词
风云三号/微波湿度计/在轨辐射定标/非线性订正Key words
FY-3A/microwave radiometer/calibration and validation/receiver non-linearity分类
天文与地球科学引用本文复制引用
谷松岩,王振占,李靖,张升伟,张丽..FY-3A/MWHS在轨辐射定标及结果分析[J].中国工程科学,2013,(7):92-100,9.基金项目
国家“863计划”资助项目 （）
