NUMERICAL SIMULATION EXPERIMENTS ON TYPHOON KHANUN

Typhoon Khanun(200515)is one of the landfall typhoon which made the seriousdisaster on the way in recent years.This paper is based upon the fifth-generation NCAR/Penn State Mesoscale Model(MM5V3),using high resolution triple-nested domain.We haveexperimented with the typhoon Khanun by four kinds of initialization respectively,analyzedand discussed the influence of the initialization of the model to the forecast effect.Theresults show that the MM5 model has the certain ability to the simulation forecast oftyphoon.In according to the usual way,bogussing vortex and the routine observation datais put into the initial field of MM5,the effect of track and intensity forecast can beimproved obviously.When the unconventional data such as the quikscat satellite sea surfacewind is put into the initial field,the forecast track error can be reduced,the effect of theintensity forecast can be ameliorated too.