Climatology and long-time change of the sea surface temperature and chlorophyll concentration in East China Sea

Abstract

East China Seas locate in the East Asia Monsoon region, which have large seasonal variation. In this paper, we use the remote sensing data from AVHRR, SeaWiFS and MODIS to analysis the climatology and long-time change of sea-surface temperature and chlorophyll concentration in the East China Seas. First, the monthly-averaged sea-surface temperature and chlorophyll concentration remote sensing data sets from 1998 to 2009 are generated. Second, the climatology distributions of the sea-surface temperature and chlorophyll concentration in the East China Seas are analyzed both for the seasonal cycle and monthly cycle, and the results show that there is remark seasonal variation in the East China Seas. Finally, based on the long-time data sets we have generated, the annual variation of the sea-surface temperature and chlorophyll concentration in the East China Seas are analyzed, and results shows that sea-surface temperature generally decreases for the whole East China Seas in the last 10 years, but with spatial variation. The chlorophyll concentration increases in the Yellow Sea in the last 10 years; however, it is decreases in the shelf of the East China Sea and the Kuroshio region.