Low level jet variations during summer monsoon onset and rainfall variations

Abstract

1154-1159An attempt has been made to identify low level jet (LLJ) stream influence on Monsoon onset over Kerala (MOK) by considering the wind intensities at 850 hPa over AS (5-20°N and 55-75°E) during the period 1997-2012. The intensity of LLJ confirms an apparent increase after onset; however, rainfall over Kerala is not well correlated with LLJ intensities. During El Nino years, there is a significant positive relation between LLJ and consecutive rainfall after onset

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