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Title: Future changes in long term significant wave heights at the Indian coasts
Authors: Jain, P
Deo, M C
Keywords: Climate change impact;Coastal design;Design wave height;Regional climate model;Wave climate
Issue Date: Sep-2020
Publisher: NISCAIR-CSIR, India
Abstract: Since recent past a growing concern has been raised by designers of various coastal and offshore structures in India that the design significant wave heights may require changes in future in response to climate change induced by global warming. At this backdrop the significant wave height (Hs) with 100 years returns period, or design Hs, is evaluated in this work at 110 coastal locations of peninsular India based on historical as well as projected wave climate with the specialty that the historical climate includes two cases: one without consideration of cyclonic winds and the other with its consideration. The wind data from a regional climate model incorporating a moderate global warming and response scenario are considered. The results show that future changes in the design Hs would be highly site specific and inclusion of past cyclonic winds will yield higher wave heights than its exclusion, as expected. While in general the futuristic design Hs would increase along the entire coastline if the past cyclonic conditions are not considered, the same may not happen at all the locations when the past wind climate had cyclonic winds included in it.
Page(s): 1513-1520
ISSN: 2582-6727 (Online); 2582-6506 (Print)
Appears in Collections:IJMS Vol.49(09) [September 2020]

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