A synoptic-scale perspective of heavy rainfall over Chennai in November 2015

Chakraborty, A (2016) A synoptic-scale perspective of heavy rainfall over Chennai in November 2015. In: CURRENT SCIENCE, 111 (1). pp. 201-207.

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Abstract

The South Indian city of Chennai experienced three phases of heavy rainfall that resulted in devastating flood during November and early December of 2015. We find that propagating convective systems from the west Pacific Ocean intensified further over the warm Indian Ocean before moving north towards Indian land region. This northward propagation was guided by two highs of mid-troposphere to the east and west of the Indian region. While the high to the east was typical of an El Nino year, that the west was associated with global phase shift of upper tropospheric Rossby wave. Similar highs to the west were present during other years of heavy rainfall along the east coast of peninsular India.

Item Type:	Journal Article
Publication:	CURRENT SCIENCE
Publisher:	INDIAN ACAD SCIENCES
Department/Centre:	Division of Mechanical Sciences > Divecha Centre for Climate Change Division of Mechanical Sciences > Centre for Atmospheric & Oceanic Sciences
Date Deposited:	19 Aug 2016 06:58
Last Modified:	19 Aug 2016 06:58
URI:	http://eprints.iisc.ac.in/id/eprint/54404

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