简介：Theresultsfromahybridapproachthatcombinesamesoscalemeteorologicalmodelwithadiagnosticmodeltoproducehigh-resolutionwindfieldsincomplexcoastaltopographyareevaluated.Thediagnosticwindmodel(CaliforniaMeteorologicalModel,CALMET)with100-mhorizontalspacingwasdrivenwithoutputsfromtheWeatherResearchandForecasting(WRF)modeltoobtainnear-surfacewindsforthe1-yearperiodfrom12September2003to11September2004.Resultswerecomparedwithwindobservationsatfoursites.Traditionalstatisticalscores,includingcorrelationcoefficients,standarddeviations(SDs)andmeanabsoluteerrors(MAEs),indicatethatthewindestimatesfromtheWRF/CALMETmodelingsystemareproducedreasonablywell.Thecorrelationcoefficientsarerelativelylarge,rangingfrom0.5to0.7forthezonalwindcomponentandfrom0.75to0.85forthemeridionalwindcomponent.MAEsforwindspeedrangefrom1.5to2.0ms-1at10metersabovegroundlevel(AGL)andfrom2.0to2.5ms-1at60mAGL.MAEsforwinddirectionrangefrom30to40degreesatbothlevels.AspectraldecompositionofthetimeseriesofwindspeedshowspositiveimpactsofCALMETinimprovingthemesoscalewinds.Moreover,combiningtheCALMETmodelwithWRFsignificantlyimprovesthespatialvariabilityofthesimulatedwindfields.ItcanbeconcludedthattheWRF/CALMETmodelingsystemiscapableofprovidingadetailednear-surfacewindfield,butthephysicsinthediagnosticCALMETmodelneedstobefurtherimproved.