层状降水的冰粒子

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1、Dual-AircraftInvestigationoftheInnerCoreofHurricaneNobert.PARTⅡ:MesoscaleDistributionoficeParticlesSpeaker:Liou2007/03/29Houze,R.A.,Jr.,F.D.Marks,Jr.,andR.A.Black,1992:J.Atmos.Sci.,49,943-962.Introduction層狀降水的冰粒子來源在哪?如何傳送?NOAAWP-3D雷達資料如何收集?資料如何分析?Datacollectiona

2、ndanalysisFlightpattern.RadarreflectivitydataClassificationofparticleimagesMappingofice-particledataMappingofflight-pathwindandverticalvelocitydataThree-dimensionalradarreflectivitystructureEyewallechopatternat1-,3-,6-,and9-kmlevel.Verticalcrosssectionsthroughthe

3、eyewallVerticalcrosssectionsthroughthestratifrormregionoutsidetheeyewall.Mappingofice-particledataobtainedat6-kmlevelMassconcentrationMedianvolumediameterNumberconcentrationParticlesizeSchematicpatternofice-particlecharacteristicsatthe6-kmlevelRelationshipofverti

4、calandhorizontalairmotionatflightleveltoprecipitationandmicrophysicalfieldsTrajectoryanalysisConclusionsFirstlargesize:眼牆上的強對流產生的冰雹Highconcentration:上升氣流所產生的冰晶(secondaryiceproduction)和眼牆中的冰粒子靠著二次環流傳送到此處Secondlargesize:由眼牆經過二次環流經過疊合過程所產生的largesize2DC(cloudprobe)0.

5、05<2DC<0.52DC-small0.55<2DC<1.052DC-medium(unit:mm)1.05<2DC2DC-large2DP(precipitationprobe)0.2<2DP<22DP-small2<2DP<42DP-medium4<2DP2DP-largeBlackandHallett(1986)columnarnearlyroundaggregatesNumberofdatasample.色階深淺代表10、20、25、30、35、40dbz圖形類似，小於0.2mm的降水物質數量很小位於6KM處，

6、在0度線以上假設都為冰0.55<2DC<1.052<2DP<4