印尼贯穿流对热带太平洋-印度洋海温异常综合模影响的初步模拟研究

THE PRELIMINARY NUMERICAL RESEARCH OF EFFECTS OF ITF ON TROPICAL PACIFIC-INDIAN OCEAN ASSOCIATED TEMPERATURE ANOMALY MODE

印尼海域是联系热带太平洋和印度洋的纽带,为了讨论印度尼西亚贯穿流对热带太平洋-印度洋海温异常综合模的影响,利用一个准全球海洋环流模式,设计了打开、关闭印度尼西亚通道的数值试验对该问题进行初步探讨。试验结果表明,印尼贯穿流对热带太平洋、印度洋海温和海流的模拟有重要影响。在海洋表层,印尼贯穿流对热带太平洋-印度洋海温异常综合模所起作用不大,这时海洋的外强迫(大气风场、太阳辐射等)起主要作用;而在次表层,印尼贯穿流对热带太平洋-印度洋海温异常综合模起着重要的作用。

Geographical condition in Indonesia sea area is the passage of tropical Pacific and Indian.In order to find out the influence of the Indonesian Throughflow（ITF） on tropical Pacific-Indian Ocean associated temperature anomaly mode,experiments of opening or closing the ITF in an Ocean Global Circulation Model（OGCM） are done.The results suggest that ITF is important in the simulations of the sea temperature and currents in tropical Pacific and Indian Ocean.This paper is also shown that for the associated temperature anomaly mode,the ITF is playing subordinate factor while the external forcing is the primary on the sea surface,however,it plays certain role in the subsurface.