On the influence of QBO over North Indian Ocean storm and depression tracks

被引:7
作者
Balachandran, S [1 ]
Guhathakurta, P [1 ]
机构
[1] India Meteorol Dept, Poona 411005, Maharashtra, India
关键词
Depression; Indian Ocean; Zonal Wind; System Track; Monsoon Season;
D O I
10.1007/s007030050028
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
In this paper the modulation of storm and depression tracks over North Indian Ocean by the Quasi-Biennial Oscillation (QBO) of zonal winds in the equatorial stratosphere is discussed for the period 1953-1991. It was observed that during post monsoon season the storms and depressions of Bay of Bengal were mostly confined to south of 17 degrees N and move in west/North-westward direction during easterly phase of QBO. However during the westerly phase no such similar type influence of QBO on the system tracks was observed. Also such type of QBO-System tracks association was not observed during pre-monsoon season.
引用
收藏
页码:111 / 118
页数:8
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