he Response of Marine Environment in the Offshore Area of China and Its Adjacent Ocean to Recent Global Climate Change
我国近海和邻近海的海洋环境对最近全球气候变化的响应

Due to the severity of impact of global climate warming on marine environment and ecosystem and sustainable development of economy and society,the impacts of global climate change for the last 50 years on winter and summer wind fields near sea surface,sea surface zonal and meridional wind stresses and sea surface temperature(SST) in the offshore area of China,including the Bohai Sea,the Yellow Sea,the East China Sea and the South China Sea,and its adjacent ocean,mainly including the tropical and subtropical western Pacific,are analyzed by using the wind data from ERA-40 reanalysis data,the high-resolution reanalysis data of ocean climate such as HadISST and Simple Ocean Data Assimilation(SODA) and so on.The analyzed results show that due to the impact of global climate warming,the winter and summer monsoon flows become weak over the offshore area of China and its adjacent Ocean after 1976,which causes the weakening of winter and summer sea surface wind stresses,especially the meridional sea surface wind stresses,and the obvious increase of SST in the area.Moreover,the results also show that the weakening of winter and summer sea surface wind stresses and the increase of SST are particularly significant in the East China Sea.Those can provide a favorable marine environment for the frequent occurrence of red tide in the offshore area of China.Besides,from the variation of the distributions of circulation divergences over the offshore area of China,it can be clearly seen that after 1976,the circulation divergences over this area intensified,which are not helpful to the formation of upwelling flow in the offshore area of China.It will have an influence on the nutrients transportation in the coastal water.In order to promote the research on the response and adaptation of marine environment and ecosystem in the offshore area of China to global climate change,some scientific problems on this aspect,which urgently need to be studied,are also proposed in this paper.