Open AccessRelationship between lower stratospheric circulation and Indian summer monsoon rainfall : Implication for long range forecasts
Author(s) -
Anil Kumar Rohilla,
D. S. Pai,
M. Rajeevan
Publication year - 2008
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v59i2.1249
Subject(s) - teleconnection , climatology , geopotential height , environmental science , northern hemisphere , monsoon , atmospheric sciences , geopotential , meteorology , precipitation , geography , geology , el niño southern oscillation
In this study teleconnections between monthly northern hemisphere lower stratospheric geopotential heights (100, 50, 30 hPa) and seasonal Indian Summer Monsoon Rainfall (ISMR) have been established through the correlation analysis. Stable and consistent precursory signals for the ensuing monsoon were identified from the significant teleconnections. The usefulness of the precursory signals for the prediction of ISMR was also tested using a simple multiple linear regression model. These precursory signals show a good potential in the long range prediction scheme of Indian Summer Monsoon Rainfall.