Long-Term Trend of the East China Sea Surface Temperature During 1945～2006
Long-Term Trend of the East China Sea Surface Temperature During 1945～2006
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发表时间：
2009
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通讯作者：
Lin Xiao
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作者：
Lin Xiao
利用HADISST1资料，研究了1945~2006年中国东海海温的长期变化趋势。东海海温呈增暖趋势，年平均增温速率为0.015℃/a，平均增温幅度为0.9℃。东海海温变化最为明显，特别是福建、浙江沿海向东北延伸。62年来，台湾海峡向北流动和位于台湾岛东北部的黑潮向北入侵都有所加强。海面风的垂直卷吸作用也起到了积极的作用，而海面净热通量抑制了海温的增暖。结果表明，海温的这种长期变化最有可能受到太平洋长期变率的影响。
Based on the HadISST1 data,long-term trend of sea surface temperature(SST) in the East China Sea(ECS) during 1945～2006 is studied.The SST tends to get warmer with a rate of 0.015 ℃/a,and raises 0.9 ℃ totally.The East Sea has the most obvious changes,especially along the coast of Fujian and Zhejiang Provinces extending to the northeast part.During the 62 years,both the northward current flow in the Taiwan Strait and the northward intrusion of the Kuroshio which locates on the northeast coast of Taiwan Island have been strenthened,inducing more heat transported by horizontal advection to enhancing the warming trend of the ECS.Vertical entrainment caused by sea surface wind can also play a positive role while net heat flux at sea surface restrains the warming of SST.Our results show that this long-term change of SST in the ECS is most likely to be influenced by the long-term variability in the Pacific Ocean.