Auto-correlation analysis of wave heights in the Bay of Bengal

摘要

Time series observations of significant wave heights in the Bay of Bengal were subjected to autocorrelation 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 autocorrelation with time lags was also found to be similar for winds and wave heights.