印度洋热带环流圈热盐输运及其对区域气候模态的影响

Review of the Tropical Gyre in the Indian Ocean with Its Impact on Heat and Salt Transport and Regional Climate Modes

受季风系统影响,热带印度洋的环流具有明显的季节变化,这在北印度洋尤其明显。但在气候平均态意义上,热带印度洋环流在赤道为东向流动,在赤道以南为西向流动,在东、西部边界分别向南、向北流动,从而与其他大洋类似,形成一个相对闭合的热带环流圈,称之为印度洋热带环流圈。立足于此环流圈,从环流热盐输运及其气候影响等方面,综述了相关的研究,讨论了印度洋热带环流系统与温盐分布和区域主要气候模态的关系。

Due to the IO monsoon impact,the tropical IO circulation has significant seasonal variation,especially in the northern IO.However,in mean-state,a relatively closed current loop is established by eastward current along the equator and westward current south of equator,which is regarded as Tropical Gyre in the Indian Ocean.Based on this circulation system,relevant studies were reviewed.Its impact on heat and salt transports and regional climate changes were discussed.