局地經(jīng)向環(huán)流模式的改善和應用.pdf

1、中山大學碩士學位論文局地經(jīng)向環(huán)流模式的改善和應用姓名：鄒海波申請學位級別：碩士專業(yè)：氣象學指導教師：袁卓建20090608局地經(jīng)向環(huán)流模式的改善和應用TheimprovementandapplicationoflocalmeridionalcirculationmodelMajor：Name：Supervisor：ABSl。RACTMeterologyZouHaiboProfessorYuanZhuojianInthelocalmeri

2、dionalcirculationmodel，thecomponentofmeridionalwind(1，解)thatconstitutedhorizontalcirculationandthecomponentofverticalmotion(％)thatconstitutedzonalcirculationmustbeknownquantitiesOldmethodestimatedVHCand(Ozcbygeostrophica

3、pproximationItwillleadtheeffectivesimulationzonerestrictedoutside10oS10oNUsingtherotationalcomponentofobservationalwind，anewmethodisdesignedtoestimate‰and(OzcandsolvetheshortcomingBycomparingthesimulationresultsofoldandn

4、ewmethods，wefindthatthenewmethodsignificantlyimprovedthesimulationresultsofthelocalmeridionalcirculationmodelneartheequatorInthispaperwealsodiagnosequantitativelythatthereismorerainfallnextspringofE1ninoepisodeandlessrai

5、nfallnextspringofLaninaepisodeinsouthemChinaTheresultshowstheFerrelcellthattheupwardmotionlocatedinSouthernChinaandthedownwardmotionlocatedinlowlmitudeisstrongnextspringofElninoepisode(comparedtoLaninaepisode)Themainfact

6、orsincludethediabaticheating，themeanstaticstabilityandverticalmotion，themeantemperatureadvectionandthemeanwesterlymomentumadvection：(1)strongwatervaporfluxconvergenceinsouthernChinaandstrongwatervaporfluxdivergenceinsout