Wave climate off Trivandrum (Kerala)

G.N. Swamy, P. UdayaVarma, A. Pylee, V.S. RamaRaju, P. Chandramohan

Abstract



The analysis of the wave data revealed that the coastal region ordinarily has a wide-band (6 to 15 sec), low-energy spectrum of waves (Hs less than 80 cm). During the southwest monsoon period, i.e., May-September, a spectrum of narrow-band (10-13 sec) and high-energy waves (Hs exceeding 1 m) were observed. The refraction of waves and the breaker characteristics are described here for a two kilometre stretch of the Trivandrum Coast (Kerala, India). Wave refraction studies revealed that for the directions of approach of the waves (8 to 14 sec) from west to west-north-west, the concentration of energy along the 2 km stretch of the Trivandrum beach is higher as compared to other directions of approach

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