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Storm surge studies in the North Indian Ocean: A review

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Title Storm surge studies in the North Indian Ocean: A review
 
Creator Shaji, C.
Kar, S.K.
Vishal, T.
 
Subject Tropical cyclone
Storm surge
Bay of Bengal
Arabian Sea
Models
 
Description 125-147
Warm
tropical North Indian Ocean (NIO), like the warm tropical North
Atlantic and South and Northeast Pacific oceans, is a breeding
ground for tropical cyclones. Tropical cyclones occur, quite often with severe
intensity, in the tropical NIO during pre-monsoon and post-monsoon seasons, and
are accompanied by very strong winds, torrential rains and storm surges. A
storm surge is a meteorologically forced long wave motion, which can generate
sustained elevations of the sea surface above the levels caused by the normal
astronomical tides. Although storm surges result

from
the combined action of extreme wind stress and, to a lesser extent, reduced
atmospheric pressure on shallow coastal shelf seas, the precise impact of the
surge at any particular location is sensitive to certain meteorological, topographic
and hydrological parameters, which include i) intensity and path of the cyclone
and its spatial and temporal scales, ii) width and slope of the continental
shelf, iii) geometry of local coastal and shelf features (bays, headlands, inlets,
barrier islands, offshore islands and reefs), and iv) interactions of surge,
astronomical tides, wind waves, river

discharge
and precipitation. The havoc caused by storm surges is found to be extremely
severe in many countries situated around the NIO rim. Hence, real time
monitoring and prediction of storm surges is of great importance in these

regions.
Various storm surge studies so far have taken place in the NIO region,
particularly those in the Bay of Bengal and Arabian Sea,
are dealt with in this article. After providing the details of the equations
governing storm surges, an

up-to-date
review is attempted. Eventually, the authors’ views on what future directions
could be taken in order to improve numerical storm surge modeling and
predictions in the NIO region are mentioned.
 
Date 2014-03-03T06:45:49Z
2014-03-03T06:45:49Z
2014-02
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/27267
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(2) [February 2014]