The primary aim of the study is to estimate wave energy attenuation by mangrove vegetation using SWAN model, and validate the model results with measurements for the Mumbai coastal region. Wave measurements presents wave height attenuation of the order of 52 %. Spectral analysis performed for the cases with and without vegetation very clearly portrays energy dissipation in the vegetation area. The model reproduced attenuation, ranging from 49 to 55 %, which matches well with the measured data.

The present work describes the interaction between waves and currents utilizing a coupled ADCIRC+SWAN model for the very severe cyclonic storm Hudhud which made landfall at Visakhapatnam on the east coast of India in October 2014. Model-computed wave and surge heights were validated with measurements near the landfall point. An increase of ≈0.2 m in H_s was observed with the inclusion of model currents.