Southern Meridional Atmospheric Circulation Associated with IOD

使用每月的风和海面温度(SST ) 数据，在印度洋与印度洋偶极子模式(IOD ) 事件联系的南部的南方的大气循环房间第一次被描述并且检验。分叉的风和压力 vertical 速度为大气循环房间的鉴定被采用。在积极 IOD 事件的四个不同阶段期间，在西方的印度洋上的异常南方的哈德利发行量证明空气在更低的对流层在热带，在上面的对流层的流动杆病房，在画热带的水池，和回来升起回到热带。在东方印度洋上的塞诺马劳斯·哈德利循环在西方的印度洋上对那相反。在积极 IOD 事件期间，当它在西方的印度洋上被加强时，在东方 IndianOcean 上的南方的哈德利发行量被削弱。在 IOD 索引和哈德利房间的索引之间的相关分析也证明那，大气循环模式在在记录的时期上的每个 IOD 事件是明显的。

Using the monthly wind and sea surface temperature （SST） data, southern meridional atmospheric circulation cells associated with the Indian Ocean Dipole Mode （IOD） events in the Indian Ocean are for the first time described and examineS. The divergent wind and pressure vertical velocity are employed for the identification of atmospheric circulation cells. During the four different phases of the positive IOD events, the anomalous meridional Hadley circulation over the western Indian Ocean shows that the air rises in the tropics, flows poleward in the upper troposphere, sinks in the subtropics, and returns back to the tropics in the lower troposphere. The anomalous Hadley circulation over the eastern Indian Ocean is opposite to that over the western Indian Ocean. During positive IOD events, the meridional Hadley circulation over the eastern Indian Ocean is weakened while it is strengthened over the western Indian Ocean. Correlation analysis between the IOD index and the indices of the Hadley cells also proves that, the atmospheric circulation patterns are evident in every IOD event over the period of record.