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Significant wave height; auto-correlation; temporal variability

Time series observations of significant wave heights in the Bay of Bengal were subjected to auto-correlation analysis to determine temporal variability scale. The analysis indicates an exponential fall of auto-correlation in the first few hours with a decorrelation time scale of about six hours. A similar figure was found earlier for ocean surface winds. The nature of variation of auto-correlation with time lags was also found to be similar for winds and wave heights

Abhijit Sarkar¹ Jignesh Kshatriya¹ K Satheesan¹

1. Meteorology & Oceanography Group, Space Applications Centre, ISRO, Ahmedabad - 380 015, India

Published

April 2006

Manuscript received

4 June 2005

Manuscript revised

14 October 2005

Accepted

10 January 2006