基于FY-3C MWRI数据的南极海冰密集度反演

Inversion of Antarctic Sea Ice Concentration Based on FY-3C MWRI Data

基于2018年9月的风云3号C星(FY-3C)微波成像仪(MWRI)数据,通过LASI算法对南极海冰密集度进行反演,并将结果与德国布莱梅大学提供的同期海冰密集度结果进行对比验证。结果表明:基于FY-3 CMWRI数据的海冰密集度反演结果与布莱梅大学的海冰密集度结果基本相同,9月平均海冰密集度分别为0.888和0.901,两者相差1.44%;平均海冰面积分别为15.635×106km2和16.374×106km2,两者相差4.52%;海冰面积趋势的相关系数达0.91。因此,基于FY-3C MWRI数据的LASI算法反演海冰密集度是可行的。

Based on microwave imager(MWRI)data of Fengyun 3 C(FY-3C)satellite in September 2018,LASI al?gorithm was used to study the inversion of Antarctic sea ice concentration,and the results were compared with the re?sults of the sea ice concentration provided by the University of Bremen,Germany.The results show that the results based on FY-3C MWRI data are basically the results of Bremen University.The average sea ice concentration in Sep?tember is 0.888 and 0.901,respectively,and there is a difference about 1.44%.The average sea ice areas are 15.635×106km2 and 16.374×106km2,respectively,and there is a difference about 4.52%,and the correlation coefficient is 0.91 between them.Therefore,it is feasible to the inversion of sea ice concentration based on the LASI algorithm and FY-3C MWRI data.