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Tropical cyclones in the Bay of Bengal and extreme sea-level projections along the east coast of India in a future climate scenario

DRS at CSIR-National Institute of Oceanography

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Title Tropical cyclones in the Bay of Bengal and extreme sea-level projections along the east coast of India in a future climate scenario
 
Creator Unnikrishnan, A.S.
RameshKumar, M.R.
Sindhu, B.
 
Subject Cyclones
storm surges
modelling
climate model
 
Description The simulations from the regional climate model, PRECIS (Providing REgional Climates for Impacts Studies), were analysed for the occurrence of tropical cyclones in the Bay of Bengal in a baseline scenario (1961–1990) and a future climate scenario (2071– 2100), A2. The analysis showed an increase in the frequency of cyclones in the Bay of Bengal during the late monsoon (August and September) in the A2 scenario compared to the baseline scenario. Extreme sea-level projections along the east coast of India were made using a storm surge model developed for the Bay of Bengal, driven by winds and surface atmospheric pressure. For A2 simulations, a uniform sea-level rise of 4 mm/yr from 1990 was included from the present levels. The 100-year return levels of extreme sea-level events are found to be higher by about 15–20% for the A2 scenario than those in the baseline scenario for locations north of Visakhapatnam. However, for Sagar and Kolkata, increase is found to be less than 5%.
 
Date 2011-08-23T09:37:52Z
2011-08-23T09:37:52Z
2011
 
Type Journal Article
 
Identifier Current Science, vol.101(3); 2011; 327-331
http://drs.nio.org/drs/handle/2264/3905
 
Language en
 
Rights Copyright [2011]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Current Science Association