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Numerical Simulation of Extreme Sea Levels Using Location Specific High Resolution Model for Gujarat Coast of India

 

作者: P. Chittibabu, S. K. Dube, A. D. Rao, P. C. Sinha, T. S. Murty,  

 

期刊: Marine Geodesy  (Taylor Available online 2000)
卷期: Volume 23, issue 2  

页码: 133-142

 

ISSN:0149-0419

 

年代: 2000

 

DOI:10.1080/01490410050030698

 

出版商: Informa UK Ltd

 

关键词: Extreme Sea Levels Gujarat Coast Tropical Cyclone Numerical Model

 

数据来源: Taylor

 

摘要:

Although the frequency of tropical cyclones is less in the Arabian sea compared to that of the Bay of Bengal, there are several severe tropical cyclones which caused extensive damage along the Gujarat coast. In view of the high tidal range in the funnel-shaped gulfs of the Khambhat and the Kachch, it is very useful to study the surge response in these regions. There is always a possibility of abnormal rise of sea level when the occurrence of surge coincides with high tide, which may eventually cause inundation of vast stretches of shallow coastal areas. In view of this, a location specific fine resolution model is developed for the Gujarat coast. The east-west and north-south grid distances for the model are 5.1 km and 5.2 km, respectively. Several numerical experiments are carried out to compute the extreme sea levels using the wind stress forcings representative of 1982, 1996, and 1998 cyclones, which crossed this region. The model-computed extreme sea levels are in good agreement with the available observations.

 

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