NUMERICAL SIMULATION OF SEA SURFACE DIRECTIONAL WAVE SPECTRA UNDER TYPHOON WIND FORCING

(整期优先)网络出版时间:2008-06-16
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NumercialsimulationofseasurfacedirectionalwavespectraundertyphoonwindforcingintheSouthChinaSea(SCS)wascarreidoutusingtheWAVEWATCH-IIIwavemodel.Thesimulationwasrunfor210huntiltheTyphoonDamrey(2005)approachedVietnam.Thesimulateddatawerecomparedwithbuoyobservations,whichwereobtainedinthenorthwestseaareaofHainanIsland.Theresultsshowthatthesignificantwaveheight,wavedirection,wavelengthandfrequencyspetraagreewellwithbuoyobservations.Thespatialcharacteristicsofthesignifciantwaveheight,meanwaveperiod,meanwavelength,waveageanddirectionalspectradependontherelativepositionfromthetyphooncenter.Also,themisalignmentbetweenlocalwindandwavedirectionswereinvestigated.