“鯨魚”臺風眼墻置換過程的初步研究.pdf

1、南京信息工程大學碩士學位論文“鯨魚”臺風眼墻置換過程的初步研究姓名：毛卓成申請學位級別：碩士專業(yè)：氣候系統(tǒng)與全球變化指導教師：羅哲賢20090501AbstractThereisadetailedanalysisofdistributionofhydrometeorsduringtheprocessofeyewallreplacementbyusinghigh—resolutionsatellitedataThroughthechang

2、eoflatentheatresultedbythephasetransitionofhydrometeors，toanalyzetheeyewallreplacementprocess；andthenprovetheroleofhydrometeorsfurtherduringtheprocessofeyewallreplacementbytheMoistPotentialVorticity(MPV)Itisfoundthat，(1)

3、Theoccurrenceanddevelopmentoftheeyewallreplacementcyclearecloselyrelatedwiththe3Ddistributionofhydrometeors(2)Theaveragelyverticalprofileoftheprecipitablewaterandprecipitableicearemoreimportantthanothersintheimpactofeyew

4、allreplacement(3)Fourhydrometeorshaveapositivecorrelationwiththetyphoonintensityinverticaldirection，andincreasingwiththeheightofthetrendofreduction(4)Thecloudiceandcloudwaterprecipitablewaterandprecipitableicehasmaintain

5、edapositivecorrelationwithtimebutanegativecorrelationwithheight(5)Thereisnelationshipbetweentheradialdistributionoffourhydrometeorsandthestrengthoftyphoon(6)ThereisnotasimplecycleprocessbetweenthestrengtheningandDeclinep

6、eriods(7)Thehydrometeorsinsidearemoreactivethanthehydrometeorsoutsideduringtheprocessofeyewallreplacement(8)Throughthelatentheatvalueandthe3Ddistributionofhydrometeors，whichcorrespondstotheexistenceofgoodrelations(9)Thep

7、ositiveofMPVI(thefirstpartoftheMoistPotentialVorticity)extendeddownward，withthetopcoldairintheformofpotentialvorticitycolumndowntheinvasioninteractedwiththenegativeMPVIinthelower，thenreducedthelowlevelStabilityandformeda

8、coldpad，forcedthewarmairrisingoverthemiddle，causedthereleasingoftheconvectionunstableenergyandthelatentheatatlast，andallofthisperiodsareclosecontactwiththeverticaldistributionofhydrometeorsKeywords：eyewallreplacement，hyd