Typical Surface Seasonal Circulation in the Indian Ocean Derived from Argos Floats

被引：7

作者：

Zheng Shao-Jun ^{[1
]}

Zhang Yu-Hong ^{[1
]}

Zhuang Wei ^{[1
]}

Li Jia-Xun ^{[2
]}

Du Yan ^{[1
]}

机构：

[1] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China

[2] State Ocean Adm, Inst Oceanog 2, Hangzhou 310012, Zhejiang, Peoples R China

来源：

ATMOSPHERIC AND OCEANIC SCIENCE LETTERS | 2012年 / 5卷 / 04期

基金：

中国国家自然科学基金;

关键词：

surface circulation; the Indian Ocean; Argos floats;

D O I：

10.1080/16742834.2012.11447015

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

This study investigates the surface circulation in the Indian Ocean using Argos float data over the period 1979-2011. The Argos observations manifest some new phenomena. The climatological annual mean circulation shows that the surface current becomes much stronger after turning around in shore in the western Indian Ocean. In the tropical Indian Ocean, the Great Whirl (GW) to the east of Somalia develops quickly in spring (April-May) as the monsoon reverses to move northward, becoming strongest in summer (June-September) and disappearing in autumn (October-November). The west end of the Agulhas retroflection can reach 18 degrees E, and it exhibits a seasonal variation. At approximately 90 degrees E, the Agulhas Return Current combines with the eastward South Atlantic Current and finally joins the Antarctic Circumpolar Current.

引用

页码：329 / 333

页数：5

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