Longshore Sediment Transport Model for the Indian West Coast
Keywords:Sediment transport, Indian coast, longshore transport, nodal drift, littoral drift, rose diagrams
Longshore sediment transport rates for the indian west coast from Cochin to Porhandar are estimated from ship observed wave data (1968 to 1986). The sediment transport rate is relatively high during the southwest monsoon period from June to September. Annual gross sediment transport rate is high (1.5-2 x 106m3) along north Kerala, north Karnataka and south Gujarat coasts. Maharashtra coast shows relatively low annual net transport (0.1 x 106m3). The annual net transport is south along north Kerala and Karnataka coasts. Coasts near Malvan, Dabhol, Murud and Tarapur appear to be nodal drift points with equal volume of transport in either direction annually.