Local-Scale Assessment of Tropical Cyclone Induced Storm Surge Inundation over the Coastal Zones of India in Probabilistic Climate Risk Scenario

Abstract

India is frequently affected by coastal flooding due to storm surges which has a significant impact on human life. The quantitative analysis of coastal flooding depends on accurate simulation of storm surges and its inundation. The analysis is imperative in coastal risk evaluation in terms of rise of water levels and its extent of inundation. In this study, risk analysis is made at the smallest geographical scale, particularly, for Andhra Pradesh which is one of the maritime states along the east coast of India often caused by coastal flooding. The ADCIRC model is used for calculating maximum possible total water elevation and associated inundation considering the non-linear interaction with the local tide as well. The simulations also include the risk assessment in the climate change scenario based on the IPCC reports. A detailed analysis of additional coastal regions which are prone to inundation in response to climate change is also made.