搜索
275Vol.27,No.5200710SCIENTIAMETEOROLOGICASINICAOct.,2007123(1,200135)(2,210044)(3,100081)GADS(GlobalAerosolDataSet)0155m,,015m,,;1m7,010275,;11555g/m3,P42111A:2005210222;:2006206215:(:2006CB403707):(19802),,,,,E2mail:oliveflower1223@sohu.com,,,[122][324],,[5]6S[627]CTM,0155m,[8],,,[9]()[10],,(GADS),GADS(GlobalAerosolDataSet),,1GADS(GlobalAerosolDataSet)PKoepkeMHess,dpAlmeida,[11],55,,10,10,Mie,()(23)GADS,,,,,,,,[12]20155m,0155m2.12.1.110155m(1)(7):,,,1,;,,(2),,,,,,,1Table1ThemeanopticaldepthofblackcarbonaerosolindifferentregionforsummerandwinterAOD3124102311371023113710243114102411671023814910242Table2Themaximumvalueofopticaldepthandthecorrespondingmassconcentrationofblackcarbonaerosolindifferentregionforwinter30N115E50N30E45N80W25S50E25S30E40N70E90NAOD(g/m3)2175102211350215510221155511471022018970181102201496018110220149611631022019920159102201317055271(=0155m):(a);(b)Fig.1Theopticaldepth(=0155m)globaldistributionofblackcarbonaerosolforwinter(a)andsummer(b),1,,,[13217]1,,,,,,(1a),,,(1b),,,,,2(,),,,,(23),11555gm23,11244gm23,,[18](2),(1555:),,,,,,(4),,,3,,(2),(3),010275,11555gm23,2(:gm23),(a)(b)Fig.2Themassconcentrationglobaldistributionofblackcarbonaerosolforwinter(a)andsummer(b)(units:gm23)3Table3Themaximumvalueofopticaldepthandthecorrespondingmassconcentrationofblackcarbonaerosolindifferentregionforsummer30N115E50N30E45N75W15S55W25S30E40N70E90NAOD(g/m3)11961022111962104102211244117710221107701981022015980188102201538116310220199301059102201032255274Table4ThevalueofopticaldepthofblackcarbonaerosolintheseaareaofeasternAsianforsummerandwinter(AOD)(AOD)(39N123E)2110102211471022(34N122E)1120102201811022(39N120E)2112102211481022(40N134E)0189610220162610222.1.23,,,,,2,(112271022km21312391023km21),(111391022km21310071023km21),,,,,,()30155m,(a),(b)(:km21)Fig.3Theabsorptionandscatteringcoefficientglobaldistribution(=0155m)ofblackcarbonaerosolforwinter(units:km21)3555:2.2,,,:2.2.1,,,;,;,,ShettleandFenn[19],=1gcm23(4),014,4(a)(b)Fig.4Complexrefractiveindicesofblackcarbonaerosoldependentonthewavelength;imaginarypart(a)andrealpart(b)5(a)(b)(c)(d)(e)Fig.5Absorptioncoefficient(unit:km21),scatteringcoefficient(unit:km21),extinctioncoefficient(unit:km-1)(a),singlescatteringalbedo(b),andasymmetryfactor(c)ofblackcarbonaerosoldependentonthewavelength4552721212,,(01011m),(5ab),,10281026km21,102121026km21015m,,015m,,4m,4,,(5c),1m(),,(),,,5d,015,,,3m,5e,0135,,3,;,;,,,,,,,:,,,;0135,,,GADS(GlobalAerosolDataSet),:5555:[1],,,..,2006,26(1):1102117.[2],..,2006,29(6):7752781.[3],,,.30.,2002,26(6):7212730.[4],,,..,2005,28(1):51257.[5],,.1016.,2005,10(2):2012208.[6],,.MODIS.,2005,24(1):972103.[7],..,2006,29(4):5002506.[8],..,2000,5(1):67274.[9],,.().:,2005:4642477.[10],..,2005,5(9):587.[11]MHess,PKoepkeandISchult.Opticalpropertiesofaerosolsandclouds.TheSoftwarePackageOPAC,1998:8312843.[12]DeepakAandHEGerber(eds.).WorldClimateProgramme,WCP255.Reporttheexpertsmeetingonaerosolsandtheirclimaticeffects.Geneva:WMO,1983:107.[13],,,.MODIS.,2003,48(19):209422100.[14],,..,2003,22():58263.[15],,,..,2005,28(1):51257.[16],,,.PM215.,2005,25(6):5872593.[17],,,..,2005,28(3):3602368.[18],,..,2000,20(4):4872493.[19]ShettleEP,RWFenn.Modelsfortheaerosolsoftheloweratmosphereandtheeffectofhumidityvariationsontheiropticalproper2ties.AirForceGeophy.Lab.,HanscomAFB,Mass.USA,AFGL2TR27920214.THEOPTICALDEPTHGLOBALDISTRIBUTIONOFBLACKCARBONAEROSOLANDITSPOSSIBLEREASONANALYSISMaJinghui1ZhengYoufei3ZhangHua2(1PudongNewWeatherOffice,SMB,Shanghai200135)(2CollegeofEnvironmentalSciencesandEngineering,NanjingUniversityofInformationScience&Technology,Nanjing210044)(3LaboratoryforClimateStudies,ChinaMeteorologicalAdministration,Beijing100081)AbstractInthispaperGADS(GlobalAerosolDataSet)dataandsoftwareareadopted,theglobaldis2tributionofmassconcentration,AOD(=0.55m),absorptioncoefficientandscattercoefficientofblackcarbonaerosolforwinterandsummerarecalculated,thereasonofthisdistributionisdiscussed,andaconclusionisdrawnthatblackcarbonaerosolsstronglyabsorbshortwavelessthan1mbyanalyzingex2tinctioncoefficient,singlescatteringalbedoandasymmetryfactorofblackcarbonaerosoldependentonthewavelength.Theabsorptioncoefficientandscattercoefficientofblackcarbonaerosolhadthesameorderwhenthewavelengthislessthan015m,butwiththewavelengthincreasedtheabsorptioncoefficientwaslargerthanscattercoefficient.Inaddition,themeanofopticaldepthofblackcarbonaerosolindifferentregion,themaximumvalueofopticaldepthandthecorrespondingmassconcentrationofblackcarbonaero2solin7regionsforwinterandsummeraregiven.Inwinter,themaximumvalueofopticaldepthofblackcarbonaerosolis010275,existedineasternAsian,whilethemaximumvalueofmassconcentrationis11555g/m3,existedinwesternEuropean.KeywordsBlackcarbonaerosolAerosolopticaldepthRefractionindexOpticalparameters65527