Topology and seasonal evolution of the network of extreme precipitation over the Indian subcontinent and Sri Lanka

This paper employs a complex network approach to determine the topology and evolution of the network of extreme precipitation that governs the organization of extreme rainfall before, during, and after the Indian Summer Monsoon (ISM) season. We construct networks of extreme rainfall events during th...

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Main Authors: V. Stolbova, P. Martin, B. Bookhagen, N. Marwan, J. Kurths
Format: Article
Language:English
Published: Copernicus Publications 2014-08-01
Series:Nonlinear Processes in Geophysics
Online Access:http://www.nonlin-processes-geophys.net/21/901/2014/npg-21-901-2014.pdf
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author V. Stolbova
P. Martin
B. Bookhagen
N. Marwan
J. Kurths
author_facet V. Stolbova
P. Martin
B. Bookhagen
N. Marwan
J. Kurths
author_sort V. Stolbova
collection DOAJ
description This paper employs a complex network approach to determine the topology and evolution of the network of extreme precipitation that governs the organization of extreme rainfall before, during, and after the Indian Summer Monsoon (ISM) season. We construct networks of extreme rainfall events during the ISM (June–September), post-monsoon (October–December), and pre-monsoon (March–May) periods from satellite-derived (Tropical Rainfall Measurement Mission, TRMM) and rain-gauge interpolated (Asian Precipitation Highly Resolved Observational Data Integration Towards the Evaluation of Water Resources, APHRODITE) data sets. The structure of the networks is determined by the level of synchronization of extreme rainfall events between different grid cells throughout the Indian subcontinent. Through the analysis of various complex-network metrics, we describe typical repetitive patterns in North Pakistan (NP), the Eastern Ghats (EG), and the Tibetan Plateau (TP). These patterns appear during the pre-monsoon season, evolve during the ISM, and disappear during the post-monsoon season. These are important meteorological features that need further attention and that may be useful in ISM timing and strength prediction.
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spelling doaj.art-00139ff113d44a308c3289f3047e43e82022-12-21T20:33:40ZengCopernicus PublicationsNonlinear Processes in Geophysics1023-58091607-79462014-08-0121490191710.5194/npg-21-901-2014Topology and seasonal evolution of the network of extreme precipitation over the Indian subcontinent and Sri LankaV. Stolbova0P. Martin1B. Bookhagen2N. Marwan3J. Kurths4PIK Potsdam Institute of Climate Impact Research, P.O. Box 601203, 14412 Potsdam, GermanyUniversity of Michigan, Ann Arbor, Michigan, USADepartment of Geography, University of California, Santa Barbara, USAPIK Potsdam Institute of Climate Impact Research, P.O. Box 601203, 14412 Potsdam, GermanyPIK Potsdam Institute of Climate Impact Research, P.O. Box 601203, 14412 Potsdam, GermanyThis paper employs a complex network approach to determine the topology and evolution of the network of extreme precipitation that governs the organization of extreme rainfall before, during, and after the Indian Summer Monsoon (ISM) season. We construct networks of extreme rainfall events during the ISM (June–September), post-monsoon (October–December), and pre-monsoon (March–May) periods from satellite-derived (Tropical Rainfall Measurement Mission, TRMM) and rain-gauge interpolated (Asian Precipitation Highly Resolved Observational Data Integration Towards the Evaluation of Water Resources, APHRODITE) data sets. The structure of the networks is determined by the level of synchronization of extreme rainfall events between different grid cells throughout the Indian subcontinent. Through the analysis of various complex-network metrics, we describe typical repetitive patterns in North Pakistan (NP), the Eastern Ghats (EG), and the Tibetan Plateau (TP). These patterns appear during the pre-monsoon season, evolve during the ISM, and disappear during the post-monsoon season. These are important meteorological features that need further attention and that may be useful in ISM timing and strength prediction.http://www.nonlin-processes-geophys.net/21/901/2014/npg-21-901-2014.pdf
spellingShingle V. Stolbova
P. Martin
B. Bookhagen
N. Marwan
J. Kurths
Topology and seasonal evolution of the network of extreme precipitation over the Indian subcontinent and Sri Lanka
Nonlinear Processes in Geophysics
title Topology and seasonal evolution of the network of extreme precipitation over the Indian subcontinent and Sri Lanka
title_full Topology and seasonal evolution of the network of extreme precipitation over the Indian subcontinent and Sri Lanka
title_fullStr Topology and seasonal evolution of the network of extreme precipitation over the Indian subcontinent and Sri Lanka
title_full_unstemmed Topology and seasonal evolution of the network of extreme precipitation over the Indian subcontinent and Sri Lanka
title_short Topology and seasonal evolution of the network of extreme precipitation over the Indian subcontinent and Sri Lanka
title_sort topology and seasonal evolution of the network of extreme precipitation over the indian subcontinent and sri lanka
url http://www.nonlin-processes-geophys.net/21/901/2014/npg-21-901-2014.pdf
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