SPATIAL PATTERN OF THE AIR-SEA INTERACTION NEAR THE SOUTH CHINA SEA DURING WINTER

被引:0
|
作者
周发琇
张翼
黄菲
刘齐
机构
关键词
air-sea interaction; SST; South China Sea; Asian monsoon;
D O I
暂无
中图分类号
P73 [海洋基础科学];
学科分类号
0707 ;
摘要
This paper delineates the coupled and principal pattrns of sea surface temperture (SST) and surface wind near the South China Sea (SCS), and discusses the mechanisms of air-sea coupling near the SCS and their asspcoiation with the Asian monsoon. Singular value decomposition (SVD) and single field principal component analysis (PCA) are applied to the so and wind anomalies from the 1979 - 1995 NCEP/NCAR reanalysis data.The leading SVD mode explains a predominant amount of squared covariance between the SST and zonal or meridional wind. During winte, the meridional wind’s relation to the SST is betterr than the relation of zonal wind to ase. Despite the large magnitude of the squared covariance between SST and zonalor meridional wind, the spatial patterns of the first mode of SVD between the SST and meridional wind are similar. They both exhibit ellipe-shaped variance with the center near the SCS and a northeast-southwest oriented main axis. The spatial patterne of the leading mode of SVD between the SST and zonal wind are also similar to a certain degree. The zonal wind is not as closely correlated to the SST as the meridional wind is. These results suggest that the meridional wind and SST are stronly coupled during the winter season, and that there is a certain coupled action system in the SCS.
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页码:132 / 142
页数:11
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