Fusion SST from Infrared and Microwave Measurement of FY-3D Meteorological Satellite

作     者：张淼 徐娜 陈林 ZHANG Miao;XU Na;CHEN Lin

作者机构：National Satellite Meteorological Center/National Center for Space WeatherBeijing 100081 China Innovation Center for Fengyun Meteorological Satellite(FYSIC)Beijing 100081 China Key Laboratory of Radiometric Calibration and Validation for Environmental SatellitesChina Meteorological AdministrationBeijing 100081 China 

出 版 物：《Journal of Tropical Meteorology》 (热带气象学报（英文版）)

年 卷 期：2024年第30卷第1期

页      面：89-96页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：Fengyun Satellite Application Advance Program(FYAPP-2021.0505) 

主　　题：SST data fusion FY3 infrared microwave 

摘      要：Sea surface temperature(SST)is one of the important parameters of global ocean and climate research,which can be retrieved by satellite infrared and passive microwave remote sensing *** satellite infrared SST offers high spatial resolution,it is limited by cloud *** the other hand,passive microwave SST provides all-weather observation but suffers from poor spatial resolution and susceptibility to environmental factors such as rainfall,coastal effects,and high wind *** achieve high-precision,comprehensive,and high-resolution SST data,it is essential to fuse infrared and microwave SST *** this study,data from the Fengyun-3D(FY-3D)medium resolution spectral imager II(MERSI-II)SST and microwave imager(MWRI)SST were ***,the accuracy of both MERSIII SST and MWRI SST was verified,and the latter was bilinearly interpolated to match the 5km resolution grid of MERSI *** pretreatment and quality control of MERSI SST and MWRI SST,a Piece-Wise Regression method was employed to correct biases in MWRI ***,SST data were selected based on spatial resolution and accuracy within a 3-day window of the analysis ***,an optimal interpolation method was applied to fuse the FY-3D MERSI-II SST and MWRI *** results demonstrated a significant improvement in spatial coverage compared to MERSI-II SST and MWRI ***,the fusion SST retained true spatial distribution details and exhibited an accuracy of–0.12±0.74℃compared to OSTIA *** study has improved the accuracy of FY satellite fusion SST products in China.