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.

中文翻译：

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印度海岸长期重要波高的未来变化

自从最近过去以来，印度各种沿海和近海结构的设计者越来越担心，由于全球变暖引起的气候变化，设计中的显着波高可能需要在未来进行改变。在此背景下，根据历史和预计的波浪气候，在印度半岛的110个沿海地区，利用100年的回归周期或设计Hs评估了重要的波浪高度（Hs），其中历史气候包括两个情况：一种不考虑旋风，另一种不考虑旋风。考虑了来自区域气候模型的风数据，该模型结合了适度的全球变暖和响应情景。结果表明，设计Hs的未来变化将高度针对特定地点，并且如预期的那样，包含过去的旋风将产生比其排除更高的波高。通常，如果不考虑过去的气旋条件，未来派设计Hs会沿着整个海岸线增加，但是当过去的风气候中包含气旋风时，可能不会在所有位置都发生这种情况。