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Wave model; source function; altimeter

An analytical form for the source function is formulated by comparing the fetch-limited approximation of the Ocean Wave Transport equation and the empirical equation for the fetch-dependent wave forecast nomograms. The source function thus generated has been utilised in the numerical model based on Toba’s formulation of wave transport equation and tested for the seas around the Indian subcontinent (5°S to 25°N latitude; 45°E to 100°E longitude). The grid averaged hindcast wave heights are found to be moderately matching with the GEOSAT altimeter measured significant wave heights of the 1987–1989 period, particularly for waves higher than 1 meter.

M Mohan¹ Abhijit Sarkar¹ Raj Kumar¹

1. Meteorology and Oceanography Group, Space Applications Centre (ISRO), Ahmedabad - 380 053, India

Published

September 1998

Manuscript received

29 June 1996

Manuscript revised

26 August 1998