用HJ-1B IRS数据反演海表温度的2种辐射传输方程改进算法  

Two improved Radiative Transfer Equation Algorithm for retrieving sea surface temperature from HJ-1B IRS data

作　　者：黄路[1,2] 张彩云 李炎[3] 邵浩[4] 杨星晨[2] HUANG Lu;ZHANG Caiyun;LI Yan;SHAO Hao;YANG Xingchen(College of Ocean and Earth Sciences,Xiamen University,Xiamen 361102,China;Preparatory Office of Zhangzhou Base,NOTC,Xiamen 361007,China;Fujian ProvincialKey Laboratory for Coastal Ecology and Environmental Studies,Xiamen 361102,China;Unit No.91039 of PLA,Beijing 102401,China)

机构地区：[1]厦门大学海洋与地球学院,福建厦门361102 [2]国家海洋技术中心漳州基地筹建办公室,福建厦门361007 [3]福建省海陆界面生态环境重点实验室(厦门大学),福建厦门361102 [4]91039部队,北京102401

出　　处：《海洋学研究》2020年第3期58-64,共7页Journal of Marine Sciences

基　　金：国家重点研发计划(2016YFE0202100);国家自然科学基金重点项目(U1805241)。

摘　　要：针对使用NCEP再分析数据和辐射传输方程法反演SST出现偏差较大的问题,以HJ-1B SST反演为例,从修正大气透过率入手,提出中心点算法和均值点算法2种辐射传输方程改进算法。2种改进算法对大气透过率偏差和HJ SST反演偏差均有明显改善,反演的HJ SST与MODIS SST均呈现显著的一致性。MODIS SST验证表明2种改进算法的平均偏差和均方差在0.5℃左右;浮标SST验证表明均值点算法的反演精度较高,其平均偏差为0.55℃,而中心点算法的为0.81℃。In order to solve the problem that there is a large deviation in retrieving SST by using reanalysis data of NCEP and Radiative Transfer Equation Algorithm, taking HJ-1 B SST retrieval as an example and starting from the correction of the atmospheric transmittance, two improved Radiative Transfer Equation Algorithm: algorithms of the Center Point Algorithm and the Mean Point Method are proposed, and they are verified by MODIS SST and buoy SST. The two improved algorithms have improved the atmospheric transmittance deviation and HJ SST retrieval deviation significantly, and both HJ SST and MODIS SST show significant consistency. The MODIS SST verification shows that the average deviation and mean square error of the two improved algorithms are about 0.5 ℃. The buoy SST verification shows that the Mean Point Algorithm has higher retrieval accuracy, which average deviation is 0.55 ℃, the average deviation of the Center Point Algorithm is 0.81 ℃.

关 键 词：NCEP 辐射传输方程法 大气透过率 HJ SST MODIS SST 

分 类 号：P731.11[天文地球—海洋科学]