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Natesan U.,Anna University | Rajalakshmi P.R.,Anna University | Murthy M.V.R.,ICMAM Project Directorate MOES | Ferrer V.A.,Anna University
Journal of the Indian Society of Remote Sensing | Year: 2015

Wave climate of the nearshore region along Chennai, Southeastern coast of India was simulated using MIKE 21 Nearshore wave module (NSW). Assessment of longshore sediment transport between Pulicat and Ennore was carried out using LITPACK. Typical wave spectrums for the three seasons – pre-monsoon, monsoon and post-monsoon at 10 m and 4 m depths exhibit the sea condition during post-monsoon, swell condition during monsoon and the combined sea and swell condition during pre-monsoon. Simulation show reasonably good comparison with buoy data in terms of wave height with an underestimation of wave period and direction. The correlation coefficient for significant wave height is 0.42 and 0.82 during the transition period and non monsoon period respectively. The littoral drift assessment has given a clear picture on how the current speed and direction play a major role in sediment transport. Sediment transport of about 0.9 × 106 m3 towards north and 0.2 × 106 m3 towards south results with a net northerly littoral drift of 0.7 × 106 m3/annum. © 2014, Indian Society of Remote Sensing. Source

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