Retrieving Wave Spectra Energy from Synthetic Aperture Radar of ENVISAT Satellite Data

This study is aimed at retrieving wave energy from large scale synthetic aperture radar (SAR) during different monsoon periods. In doing so, nonlinear velocity bunching model algorithm is used to retrieve the information of ocean wave spectra parameters such as significant wave height, directions, and energy on offshore, midshore, and onshore. Therefore, the maximum peak of the wave energy spectra density of 1.4 m(2) s has occurred during northeast monsoon period with maximum significant wave height of 4. Clearly, the mid-shore and onshore has the highest peak of 0.8 and 1.37 m(2) s, respectively as compared to offshore. Further, the maximum wave energy based on significant wave height is m100 kW/m. In conclusions, a nonlinear algorithm of velocity bunching can be used to retrieve the significant wave height from synthetic aperture radar (SAR). In addition, SAR can be used to map the distribution of ocean wave spectra energy.