Impact of Diurnal Variation of Winds on Coastal Waves off South East Coast of India

Abstract

The land-sea breeze systems, the most interesting phenomena observed at coastal regions, have significant impact on the costal wave characteristics. Present study also focuses the diurnal variations of winds and its impact on wave parameters like significant wave height and mean wave period off Ennore port located in the south east coast of India The impact of the diurnal variation of winds on complex wave patterns in the coastal regions of Indian Ocean have been addressed earlier also. In the present study an attempt has been made to explore the impact of diurnal variation of winds on coastal waves using numerical model forced with European Centre for Medium Range Weather Forecasts (ECMWF) and National Centre for Environmental Prediction (NCEP) blended wind fields. It has been observed that most of the time, the ECMWF blended wind field reproduces the diurnal variation.