Impact of Siberian High on rainfall variability over Northern part of Indo-Pak region

Anticyclones dominate the weather over most of the eastern and the southern Asia during the winter season. This study examines the impact of Siberian High on winter rainfall variability over South Asia. In this paper, the teleconnections between the Siberian High and winter precipitation that cover the northern part of Indo-Pak region have been discussed. The objective indices of area-weighted pressure and area-weighted latitudinal and longitudinal movements high are used to find out the linkage between the winter rainfall in the mentioned region and the Siberian High. The analysis shows that rainfall pattern is significantly correlated with latitudinal displacement of the Siberian High. We have constructed a linear model of the winter rainfall using Siberian High latitude and Nino34 which explains 27 % variance of the winter precipitation for the region under study. The article also explains the physical mechanisms to establish the relationships between the Siberian High and regional rainfall.