The monsoon and its variability

IISc Bangalore Course , Prof. Sulochana Gadgil

Lecture 1: Mod-01 Lec-01 Preamble and Introduction to the Indian Monsoon

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Lecture Details :

The monsoon and its variability by Prof. Sulochana Gadgil,Department of Atmospheric Science,IISc Bangalore.For more details on NPTEL visit

Course Description :

Introduction: Monsoon definitions, summer monsoon, post-monsoon and winter monsoon, nature of the variability of the Indian summer monsoon - Background about the atmosphere and rotating systems - Convection and rainfall in the tropics, organization over different spatial scales, conditional instability of the first and second kind Active and weak spells, breaks in the monsoon - Basic system responsible for the monsoon - Tropical Convergence Zones (TCZs) and the Indian monsoon - Variation of convection/rainfall over the Ocean: SST-rainfall relationship - Heat lows, TCZ and monsoonal regions of the world - Seasonal transitions (onset and retreat) and climatic clusters - Intraseasonal variation and intraseasonal oscillation - Tropical Oceans: background - El Nino and Southern Oscillation - Indian ocean and the Indian monsoon - Interannual variation of the Indian summer monsoon rainfall: links to events over the Indian and Pacific Ocean - Monsoon variability, agriculture and economy - Monsoon Prediction: problems and prospects

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