Extreme Rainfall Events: Vulnerability Analysis for Disaster Management and Observation System Design
IR@C-MMACS: CSIR-Centre for Mathematical Modelling and Computer Simulation, Bangalore
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Title |
Extreme Rainfall Events: Vulnerability Analysis for
Disaster Management and Observation System Design
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Creator |
Goswami, P
K V, Ramesh |
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Subject |
Climate Modelling
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Description |
Extreme rainfall events today pose a serious threat to many populated and urbanized areas
worldwide; an accurate estimate of frequency and distribution of these events can significantly aid
policy planning and observation system design. We report here a first-ever high-resolution (10 KM)
analysis of heavy rainfall episodes (defined as 24-hour rainfall exceeding 250 mm) over the Indian
region. The data set, recently developed by National Oceanographic and Atmospheric Administration,
USA (NOAA), provides daily composite rainfalls for the period 2001-2006 at locations approximately
10-km apart. A category-wise analysis reveals a number of hot spots of vulnerability in terms of
annual average number of extreme rainfall events; in particular, the semiarid region in the north-west
India emerges as a high vulnerability area in terms of extreme rainfall events. These findings have
important implications for a number of areas like vulnerability assessment and meso-scale
forecasting. The high-resolution analysis also clearly reveals the corridor of the monsoon trough
(Continental Tropical Convergence Zone), lined by a flower-pot distribution of extreme rainfall events
along the flanks; this can be a valuable input for precision design of field experiments on the
continental trough or on localized extreme events like thunderstorms.
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Publisher |
CSIR Centre for Mathematical Modelling and Computer Simulation
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Date |
2007-03
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Type |
Monograph
NonPeerReviewed |
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Format |
application/pdf
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Identifier |
http://cir.cmmacs.ernet.in/181/1/rrcm0703.pdf
Goswami, P and K V, Ramesh (2007) Extreme Rainfall Events: Vulnerability Analysis for Disaster Management and Observation System Design. Technical Report. CSIR Centre for Mathematical Modelling and Computer Simulation, C-MMACS,Bangalore 560037,India. (Unpublished) |
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Relation |
http://cir.cmmacs.ernet.in/181/
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