简介：AseveretyphoonUtor,occurringbetweenJuly3and8,2001,broughtheavyrainfall,strongwindandstormsurge.UtorwasresponsiblefortremendousdestructionandeconomiclossesinPhilippines,TaiwanandGuangdong.Anair-seamodelsystem(MM5andPrincetonOceanModel(POM))wasbuilttosimulatemeteorologicaldynamicsandoceancirculationintheSouthChinaSea(SCS).InthePOMtheoutputofMM5wasusedastheinputdata.Withanincreasednumberofverticallevels,ahigh-resolutionplanetaryboundarylayerschemeandupdatedlanduse/vegetationdata,theaccuracyofcomputingwind,temperatureandothermeteorologicalfieldsareimprovedinnearsurfaceandupperlevelsinMM5simulations.ThesimulatedtrajectoryandwindspeedofUtorareclosetotheobservedresults.ThesimulateddistributionofrainfallisaccordedwellwithmeasureddatainthePearlRiverDelta(PRD)area.AtdifferentmeteorologicalstationsinHongKong,thewind,temperatureandseasurfacepressurearewellsimulated.Thesimulatedoceansurfacecurrentandsurfacetemperaturefieldshaveanobviousrightward-biasedresponsetothetyphoonUtor,andthemaximumvelocityandthelowesttemperatureregionappearinthe30kmoftherightsideofthetyphoontrack.ThetyphoonUtorcouldmakethewater50munderthesurfaceoceanunwelltosurfaceandtheoceansurfacetemperaturedecreasebyabout2°C.

简介：这份报纸调查大小Mw=9.30作为马尼拉沟在华南海(SCS)正在成为最危险的海啸来源区域之一。用方程建模的非线性的浅水，表面举起，到达时间，最大的波浪振幅的空间分布和速度分发的时间系列被介绍。波浪和水流的特征被分析。数字结果显示波浪散布在的海啸的精力的那个大多数中央并且SCS的北方部分。近海在SCS附近的区域将被地震在马尼拉subduction地区产生的海啸水流显著地影响。广东省，海南岛，和台湾岛附近的最大的波浪振幅在海岸附近在测量地点的多数超过4m和速度超过2m/s。有高分辨率的嵌套的格子被用来在海南岛，台湾岛，和Lingding海湾上学习海啸的影响。有高危险风险的区域由于强壮的水流被识别。最后，在SCS的一个快海啸警告方法被开发并且讨论，它能在5min提供海啸警告信息。

简介：TheresponseoftheSouthChinaSea(SCS)toTyphoonChanchu(2006)wasexaminedusingtheMM5andPOMmodel.InthePOMmodel,seasurfaceboundaryconditionswereforcedbythesimulationwindfieldfromMM5,thevelocityforcingwasintroducedintheeasternboundaryandthecomputationalschemesofheatfluxesatthesurfacewereintroduced.Comparisonwiththeobservationdatashowsthatthesimulatedresultsarereliable.IntheresponseprocessoftheSCStoTyphoonChanchu,theinfluenceoftheheatfluxesonthermalstructureoftheSCSwasregionallydifferent.Strongwindforcingwouldleadtoupwellingphenomenoninthelateralboundaryofdeepwaterbasin.Furthermore,theEkmanpumpingtheorywasusedtodiscusssubsurfaceupwellinganddownwellingphenomenonintyphoonforcedstage.

简介：Avariablecoefficient,rotation-modifiedextendedKortweg-deVries(vReKdV)modelisappliedtothestudyoftheSouthChinaSea(SCS),withfocusontheeffectsofthehigh-order(cubic)nonlinearityandtherotationonthedisintegrationprocessoflarge-amplitude(170m)InternalSolitaryWaves(ISWs)andthesemi-diurnalinternaltidepropagatingfromthedeepbasinstationtotheslopeandshelfregionsinacontinuouslystratifiedsystem.Thenumericalsolutionsshowthatthehigh-ordernonlinearitysigni-ficantlyaffectsthewaveprofilebyincreasingthewaveamplitudeandthephasespeedinthesimulatedarea.ItisshownthattheinitialKdV-typeISWwilldecayfasterwhentherotationdispersionisconsidered,howeverthewaveprofiledoesnotchangesignificantlyandtherotationeffectisnotimportant.Thesimulationsofthesemi-diurnalinternaltideindicatethatthephaseofthewaveprofileisshiftedearlierwhentherotationeffectisincluded.Asolitarywavepacketemergesontheshelf,andthewavespeedisalsogreaterwhenconsideringtherotationdispersion.Inaddition,theeffectsofthebackgroundcurrentsarediscussedfurtherinthispaper.ItisfoundthatthebackgroundcurrentsgenerallychangethemagnitudeandoccasionallychangethesignofthenonlinearcoefficientsinthenorthernSCS.