简介:AnellipticalwindfieldmodeloftyphoonsisputforwardbasedonthecharacteristicsofthetyphoonwindfieldsoccurringintheYellowSeaandBohaiSea.Bycontrastingitwiththecirculartyphoonwindfieldmodel,itisfoundthattheellipticalmodelcanadequatelyrepresenttherealwindfieldandtracetheprocessofatyphoonstormsurge.Thenumericallysimulatedresultsofstormsurgesbyusingtheellipticalmodelareingoodagreementwiththeobservationsandmarkedlybetterthanthosebyusingthecircularmodel.