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dc.contributor.authorJesbin, G.
dc.contributor.authorSanilKumar, V.
dc.contributor.authorGowthaman, R.
dc.contributor.authorJaiSingh
dc.date.accessioned2020-02-04
dc.date.accessioned2020-02-04T09:38:28Z
dc.date.available2020-01-21
dc.date.available2020-02-04T09:38:28Z
dc.date.issued2020
dc.identifier.citationJournal of Marine Science and Engineering, vol.8(1); 2020; Article no: 55
dc.identifier.urihttps://doi.org/10.3390/jmse8010055
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/8324
dc.description.abstractThe nearshore wave characteristics and variations in littoral drift (longshore sediment transport; LST) are estimated based on different approaches for four years along the Vengurla coast, with comparable wind-sea and swell energy assessed. The waverider buoy-measured data at 15 m water depth is utilized as the input wave parameters along with the reanalysis model data, and the numerical wave model Delft-3D is used for estimating the nearshore wave parameters. The relative contribution of wind-seas and swells on LST rates are specifically examined. The clear prevalence of west-southwest waves implies the prevalence of south to north longshore sediment transport with net transport varying from 0.19-0.37 x 105 m3/yr. LST is strongly dependent on the breaker angle and a small change in the wave direction substantially alters the LST, and hence reanalysis/model data with coarse resolutions produce large errors (~38%) in the LST estimate. The annual gross LST rate based on integral wave parameters is only 58% considering the wind-seas and swells separately, since the wind-sea energy is comparable to swell energy, and the direction of these two systems differs significantly.
dc.languageen
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleNearshore Waves and Littoral Drift Along a Micro-Tidal Wave-Dominated Coast Having Comparable Wind-Sea and Swell Energy
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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