Author(s)

Glejin Johnson, V. Sanil Kumar, Sajiv Philip Chempalayil, Jai Singh, Premanand Pednekar, K. Ashok Kumar, G. Udhaba Dora, Rajamanickam Gowthaman

Ocean Engineering, CSIR-National Institute of Oceanography (Council of Scientific & Industrial Research), Dona Paula, India.

A study was carried out to find the variation in wave characteristics along the eastern Arabian Sea and the influence of swells in the nearshore waves at 3 locations during summer monsoon in 2010. Percentage of swells in the measured waves was 75% to 79% at the locations with higher percentage of swells in the northern portion of Arabian Sea com-pared to that at the southern side. The significant wave height up to 4.7 m and maximum wave height up to 7.4 m was observed. The wave height was increasing from south to north with the average significant wave height at the northern location 20% more than that at the southern location due to the increase in the swell height. Waves having spectral peak period less than 6 s were not present during the summer monsoon period. There was no change in the average value of wave statistical parameters for data collected at 1/2, 3, 6, 12 and 24 h interval.

Seas; Swells; Wind Waves; Arabian Sea; Mixed Sea State; Wave Spectrum

Johnson, G. , Kumar, V. , Chempalayil, S. , Singh, J. , Pednekar, P. , Kumar, K. , Dora, G. and Gowthaman, R. (2012) Variations in Swells along Eastern Arabian Sea during the Summer Monsoon. Open Journal of Marine Science, 2, 43-50. doi: 10.4236/ojms.2012.22006.