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Inter-annual variations in wave spectral characteristics at a location off the central west coast of India

DRS at CSIR-National Institute of Oceanography

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Title Inter-annual variations in wave spectral characteristics at a location off the central west coast of India
 
Creator SanilKumar, V.
Nair, M.A.
 
Subject Wave spectra
Annual variations
Wave properties
Temporal variations
Data buoys
Swell
 
Description The inter-annual variations in wave spectrum are examined based on the wave data measured at 9 m water depth off the central west coast of India from 2009 to 2012 using a wave rider buoy. The temporal variation of the spectral energy density over a calendar year indicates similar variation in all the four years studied. The inter-annual variations in wave spectrum are observed in all months with larger variations during January to February, May and October to November due to the changes in wind-sea. The seasonal average wave spectrum during the monsoon (June–September) is single-peaked and the swell component is high in 2011 compared to other years. The annual averaged wave spectrum had higher peak energy during 2011 due to the higher spectral energy present during the monsoon period. During the non-monsoon period, two peaks are predominantly observed in the wave spectra; with the average peak at 0.07 Hz corresponding to the swells from the Indian Ocean and another at 0.17 Hz due to the local wind field
 
Date 2015-03-09T10:05:59Z
2015-03-09T10:05:59Z
2015
 
Type Journal Article
 
Identifier Annales Geophysicae, vol.33(2); 2015; 159-167
http://drs.nio.org/drs/handle/2264/4711
 
Language en
 
Rights © Author(s) 2015. CC Attribution 3.0 License.
 
Publisher European Geophysical Union