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Spatial Structures and Directionalities in Monsoonal Precipitation Over South Asia : Volume 17, Issue 5 (01/09/2010)

By Malik, N.

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Book Id: WPLBN0003980416
Format Type: PDF Article :
File Size: Pages 11
Reproduction Date: 2015

Title: Spatial Structures and Directionalities in Monsoonal Precipitation Over South Asia : Volume 17, Issue 5 (01/09/2010)  
Author: Malik, N.
Volume: Vol. 17, Issue 5
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Malik, N., Kurths, J., & Marwan, N. (2010). Spatial Structures and Directionalities in Monsoonal Precipitation Over South Asia : Volume 17, Issue 5 (01/09/2010). Retrieved from

Description: Potsdam Institute for Climate Impact Research, P.O. Box 601203, 14412, Potsdam, Germany. Precipitation during the monsoon season over the Indian subcontinent occurs in form of enormously complex spatiotemporal patterns due to the underlying dynamics of atmospheric circulation and varying topography. Employing methods from nonlinear time series analysis, we study spatial structures of the rainfall field during the summer monsoon and identify principle regions where the dynamics of monsoonal rainfall is more coherent or homogenous. Moreover, we estimate the time delay patterns of rain events. Here we present an analysis of two separate high resolution gridded data sets of daily rainfall covering the Indian subcontinent. Using the method of event synchronization (ES), we estimate regions where heavy rain events during monsoon happen in some lag synchronised form. Further using the delay behaviour of rainfall events, we estimate the directionalities related to the progress of such type of rainfall events. The Active (break) phase of a monsoon is characterised by an increase(decrease) of rainfall over certain regions of the Indian subcontinent. We show that our method is able to identify regions of such coherent rainfall activity.

Spatial structures and directionalities in Monsoonal precipitation over South Asia

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