Decadal variation of spring SST and wind field in the East China Sea Kuroshio

Abstract

Abstract: Based on the high resolution satellite Sea Surface Temperature (SST) and wind data, the decadal variation of the warm tongue and sea surface wind field of East China Sea (ECS) Kuroshio during spring (March-May) were analyzed using the Empirical Orthogonal Function (EOF) and Composite Analysis methods. The results show that: the Kuroshio warm tongue in spring exists significant decadal variation, and experiences a phase change in 1996/1997. The phase change is mainly influenced by the North Pacific Gyre Oscillation (NPGO). Further study find that there is a significant negative correlation between the SST and wind divergence field on decadal time scale. Composite Analysis indicates that the abnormal warming of continental shelf in ECS mainly influence the negative correlation.

Key words: spring, Kuroshio, sea surface temperature, sea surface wind

CLC Number:

P732.6

WANG Xing-zhi, LI Chong-yin. Decadal variation of spring SST and wind field in the East China Sea Kuroshio[J]. Journal of Marine Sciences, 2013, 31(4): 10-16.

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