简介：Inthispaper,atwo-dimensionalprimitiveequationmodel,couplingdynamical,radiativeandphotochemicalprocesses,isusedtosimulatethequasi-biennialoscillation(QBO)inozone.TheQBOintotalozonehasbeensuccessfullysimulatedwhentheforcingofequatorialstratosphericQBOinzonalwindisimposed.ThesimulatedcharactersofQBOinozoneareincloseagreementwiththoseobserved.WefurtheranalyzedthemechanismofformationandmaintenanceofQBOinozone.InthedifferentphasesofQBOinequatorialstratosphericwindfield,theglobalcirculationhassogreatdifferencethatitmakestheeffectsofadvectiontransferandeddytransferpresentaquasi-biennialperiodicalvariation.Chemicaleffectanddynamicaleffectarebasicallyout-of-phase.TheytogetherformandmaintaintheQBOinozone.Totalvariationrateisatinydifferenceofthetwolargeamounts.Atthelowerlevelofmiddle-highlatitudes,however,ithasaphasedifferenceofabout1-2monthsbetweendynamicalandnegativechemicaleffects,wherethedynamicaleffectiscomparativelygreater.QBOinozonehasnoclearcountereffectsonatmosphericcirculation.TheexperimentresultsshowthattheeffectsofQBOinozoneontemperaturefieldandwindfieldareverysmall.

简介：ＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＯＺＯＮＥＶＡＲＩＡＴＩＯＮＯＶＥＲＡＮＴＡＲＣＴＩＣＡ￥ＺｈｏｕＸｉｕｊｉｉ（周秀骥），ＬｕＬｏｎｇｈｕａ（陆龙骅），ＺｈｅｎｇＸｉａｎｇｄｏｎｇ（郑向东）ａｎｄＧｕｏＳｏｎｇ（郭松）ＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳ...

简介：ＯＺＯＮＥＶＡＬＬＥＹＯＶＥＲＴＩＢＥＴＡＮＰＬＡＴＥＡＵＺｈｏｕＸｔｕｊｉ（周秀骥）ａｎｄＬｕｏＣｈｃｏ（罗超）ＯＺＯＮＥＶＡＬＬＥＹＯＶＥＲＴＩＢＥＴＡＮＰＬＡＴＥＡＵＺｈｏｕＸｔｕｊｉ（周秀骥）ａｎｄＬｕｏＣｈｃｏ（罗超）（ＣｈｉｎｅｓｅＡｃａ...

简介：从臭氧卫星观察和一般循环的数据分析，这篇文章讨论季节并且在西藏上的全部的臭氧的interannual变化。分析在西藏上在interannual臭氧变化在伪鈥擝iennial摆动(QBO)上被做了，与在热带上并且非的QBO比较在西藏的一样的纬度的鈥攎ountain区域。事实被看那西藏臭氧QBO有29个月的一个平均时期，与8杜的一个平均振幅。西藏臭氧QBO是到在热带上的同温层的风QBO的反相，即30hPa鈥攚ind是的热带在东方，臭氧有剩余，和副诗句。这篇文章也在西藏上在臭氧QBO上讨论大气的转移的影响。关键词臭氧-QBO-西藏作者被强迫到中国科学院(KZ951-A-205-05)，中国(49775276)的国家自然科学基础和大气的物理的研究所，中国科学院(8-2212)。作者希望谢谢在NASA/戈达德空间飞行中心处理队的臭氧，美国为他们TOMS臭氧7的客气的预备，NRCC，加拿大，为他们的10.7厘米太阳的收音机流动数据和NCAR为标准化了30hPa在新加坡的带的风数据。

简介：ByusingtheobservationalO3dataofKunmingandHongKongduringtheperiodof1997-2001,thepaperstudiesthedistributionandvariationoftotalozoneinlowlatituderegionofChina.ThestudyshowsthatthecharacteristicsofvariationinKunmingandHongKongareverysimilar,andthetotalozoneinthewesternareasislargerthanintheeasternones.Itismaximuminsummerandminimuminwinter.

简介：ＧＲＯＵＮＤ－ＢＡＳＥＤＭＥＡＳＵＲＥＭＥＮＴＳＯＦＣＯＬＵＭＮＡＢＵＮＤＡＮＣＥＯＦＯＺＯＮＥＡＮＤＵＶ－ＢＲＡＤＩＡＴＩＯＮＯＶＥＲＺＨＯＮＧＳＨＡＮＳＴＡＴＩＯＮ，ＡＮＴＡＲＣＴＩＣＡＦＯＲＴＨＥ１９９３“ＯＺＯＮＥＨＯＬＥ”ＺｈｏｕＸｉｕｊｉ...

简介：ＴＨＥＭＥＡＳＵＲＥＭＥＮＴＡＮＤＡＮＡＬＹＳＩＳＯＦＡＮＴＡＲＣＴＩＣＯＺＯＮＥＡＴＺＨＯＮＧＳＨＡＮＳＴＡＴＩＯＮＯＦ１９９３ＺｈｏｕＸｉｕｊｉ（周秀骥），ＬｕＬｏｎｇｈｕａ（陆龙骅），ＺｈｅｎｇＸｉａｎｇｄｏｎｇ（郑向东）ａｎｄＧｕｏＳｏｎｇ（...

简介：A2-Dglobalchemistry-transportmodelissetupinthispaper.Themodelsimulatestheatmosphericozonedistributionswellwithspecifieddynamicalconditions.Theanalysisofozonevariationmechanismshowsthatozoneischemicallyinquasi-equilibriumexceptforthepolarnightregionwherethevariationofozoneconcentrationisunderthecontrolofdynamicalprocesses,thattheoxygenatomswhichproduceozonearemainlyprovidedbythephotolysisofO2intheupperstratosphereandbythephotolysisofNO2inthelowerstratosphereandthetroposphere.andthattheozoneisdestroyedmainlybyNOx:thereactionsbetweenNOxandO3andtheoddoxygencyclecontribute80%tomorethan90%oftheozonedestruction.

简介：Throughoneandhalfyearcontinuousin-situmeasurements,thedistributionsandvariationsofsurfaceozoneanditsprecursorsatatypicalmixedagriculturalandmetropolitanarea-Changshu,YangtzeDeltaregion,werestudied.Thepreliminaryanalysisontheconcentrationlevelsandvariationsofsurfaceozoneindicatedtheobviousseasonalanddiurnalcyclesduringtheexperiment.Thehourlyaveragedconcentrationsofsurfaceozonewerehigh,inabout17%oftotalvalidhoursthesurfaceozoneconcentrationexceeded50ppb,andin22daysthehourlyaveragedozoneconcentrationwasgreaterthan100ppb.Therewereabout40%ofthedaysinthatthedailymaximum8-hourozoneconcentrationwasgreaterthan50ppb.Thedayswithdailymaximum8-hourozoneconcentrationgreaterthan80ppbwereabout33daysthataccountedforabout8%oftheobservationaldays.Thevariationsof5-daymovingaveragedozoneconcentrationsdependedbothontheweatherconditionsandonthechangesofozoneinbackgroundatmosphere.Photochemicalprocesshadthesignificantimpactsonozoneproductions.

简介：Athree-dimensionalglobalchemistrytransportmodel(OSLOCTM2)isusedtoinvestigatetheimpactofsubsonicaircraftNOxemissiononNOzandozoneoverChinaintermsofayear2000scenarioofsubsonicaircraftNOxemission.TheresultsshowthatsubsonicaircraftNOxemissionsignificantlyaffectsnorthernChina,whichmakesNOxat250hPaincreasebyabout50pptvwiththehighestpercentageof60%inJanuary,andleadingtoanozoneincreaseof8ppbvwith5%relativechangeinApril.TheNOxincreaseismainlyattributedtothetransportprocess,butozoneincreaseisproducedbythechemicalprocess.TheNOxincreasesbylessthan10pptvbyvirtueofsubsonicaircraftNOxemissionoverChina,andozonechangeslessthan0.4ppbv.WhensubsonicaircraftNOxemissionoverChinaisdoubled,itsinfluenceisstillrelativelysmall.

简介：

简介：Atwo-stepmethodisemployedinthisstudytoretrieveverticalozoneprofilesusingscatteredmeasure-mentsfromthelimboftheatmosphere.ThecombinationoftheDifferentialOpticalAbsorptionSpectroscopy(DOAS)andtheMultiplicativeAlgebraicReconstructionTechnique(MART)isproposed.First,thelimbradiance,measuredoverarangeoftangentheights,isprocessedusingtheDOAStechniquetorecovertheeffectivecolumndensitiesofatmosphericozone.Second,theseeffectivecolumndensitiesalongthelinesofsight(LOSs)areinvertedusingtheMARTcoupledwithaforwardmodelSCIATRAN(radiativetransfermodelforSCIAMACHY)toderivetheozoneprofiles.ThismethodisappliedtoOpticalSpectrographandInfraRedImagerSystem(OSIRIS)radiance,usingthewavelengthwindows571-617nm.Verticalozoneprofilesbetween10and48kmarederivedwithaverticalresolutionof1km.Theresultsillustrateagoodagreementwiththecloud-freecoincidentSCanningImagingAbsorptionspectroMeterforAtmosphericCHartographY(SCIAMACHY)ozonemeasurements,withdeviationslessthan±10%(±5%foraltitudesfrom17to47km).Furthermore,sensitivitiesofretrievedozonetoaerosol,cloudparametersandNO2concentrationarealsoinvestigated.

简介：

简介：这研究模仿有效放射的强迫(小块土地)tropospheric，从1850～2013的臭氧和它用联合的喷雾器气候的全球气候上的效果当模特儿，电子消息传输方式AGCM2.0.1CUACE/Aero，在有OMI(臭氧监视仪器)的联合卫星臭氧数据。根据OMI观察，全球年度吝啬的tropospheric列臭氧(TCO)是在2013的33.9杜，并且最大的TCO在在30tpatient和电子邮件问询表之间的带是分布式的，由临床/生物化学的参数/肝组织病理学说支持了。除了一个的ResultsAll是男性，与46.9les和二女性，的吝啬的年龄从K的年龄46lfatase。lactis为风味产生真正负责。在这研究，我们从K克隆通常认为的arylsulfatase基因。lactisGG799进商业地可得到的向量pKLAC2。选择的克隆的策略导致了相应、能分泌的e鴄?鴄吗？？

简介：

简介：GroundlevelozonepollutionhasbecomeasignificantairpollutionprobleminBeijing.Becauseofthecomplexwayinwhichozoneisformed,itisdifficultforpolicymakerstoidentifyoptimalcontroloptionsonacost-effectivebasis.Thispaperidenti-fiesandassessesarangeofoptionsforaddressingthisproblem.WeapplytheAmbientLeastCostModelandcomparetheeco-nomiccostsofcontroloptions,thenrecommendthemosteffectivesequencetorealizepollutioncontrolatthelowestcost.ThestudyfindsthatinstallingofStageIIgasolinevaporrecoverysystematBeijing's1446gasolinestationswouldbethemostcost-effectiveoption.Overall,optionstoreduceozonepollutionbycuttingve-hicularemissionsaremuchmorecost-effectivethanoptionsto'cleanup'coal-firedpowerplants.

简介：ＯｚｏｎｅＶｅｒｔｉｃａｌＰｒｏｆｉｌｅＣｈａｒａｃｔｅｒｉｓｔｉｃｓｏｖｅｒＱｉｎｇｈａｉＰｌａｔｅａｕＭｅａｓｕｒｅｄｂｙＥｌｅｃｔｒｏｃｈｅｍｉｃａｌＣｏｎｃｅｎｔｒａｔｉｏｎＣｅｌＯｚｏｎｅｓｏｎｄｅｓ①ＬｉｕＱｉｊｕｎ（刘奇俊），Ｚｈｅｎｇ...

简介：ATibetanozonelowwasfoundinthe1990saftertheAntarcticozonehole.Whetherthisozonelowhasbeenrecoveringfromthebeginningofthe2000sfollowingtheglobalozonerecoveryisanintriguingtopic.WiththemostrecentmergedTOMS/SBUV(TotalOzoneMappingSpectrometer/SolarBackscatterUltraViolet)ozonedata,theTibetanozonelowanditslong-termvariationduring1979-2010areanalyzedusingastatisticalregressionmodelthatincludestheseasonalcycle,solarcycle,quasi-biennialoscillation(QBO),ENSOsignal,andtrends.TheresultsshowthattheTibetanozonelowmaintainsandmaybecomemoresevereonaverageduring1979-2010,comparedwithitsmeanstateintheperiodsbefore2000,possiblycausedbythestrongerdownwardtrendoftotalozoneconcentrationovertheTibet.Comparedwiththeozonevariationoverthenon-Tibetanregionalongthesamelatitudes,theTibetanozonehasalargerdownwardtrendduring1979-2010,withamaximumvalueof-0.40±0.10DUyr1inJanuary,whichsuggeststhestrengtheningoftheTibetanozonelowincontrasttotherecoveryofglobalozone.RegressionanalysesshowthattheQBOsignalplaysanimportantroleindeterminingthetotalozonevariationovertheTibet.Inaddition,thelong-termozonevariationovertheTibetanregionislargelyaffectedbythethermal-dynamicalproxiessuchasthelowerstratospherictemperature,withitscontributionreachingaround10%ofthetotalozonechange,whichisgreatlydifferentfromthatoverthenon-Tibetanregion.

简介：Usingfoursatellitedatasets(TOMS/SBUV,OMI,MLS,andHALOE),weanalyzetheseasonalvariationsofthetotalcolumnozone(TCO)anditszonaldeviation(TCO*),andrevealtheverticalstructureoftheOzoneLow(OV)overtheAsiancontinent.Ourprincipalfindingsare:(1)TheTCOovertheAsiancontinentreachesitsmaximuminthespringanditsminimumintheautumn.TheOzoneLowexistsfromMaytoSeptember.(2)TheOzoneLowhastwonegativecores,locatedinthelowerandtheupperstratosphere.Thelowercoreisnear30hPainthewinterand70hPaintheotherseasons.Theuppercorevariesfrom10hPato1hPaamongthefourseasons.(3)ThepositionoftheOzoneLowinthelowerandtheupperstratosphereovertheAsiancontinentshowsseasonalvariability.

简介：ＮｏｎｌｉｎｅａｒＲｅｔｒｉｅｖａｌｏｆＡｔｍｏｓｐｈｅｒｉｃＯｚｏｎｅＰｒｏｆｉｌｅｆｒｏｍＳｏｌａｒＢａｃｋｓｃａｔｅｒＵｌｔｒａｖｉｏｌｅｔＭｅａｓｕｒｅｍｅｎｔｓ：ＴｈｅｏｒｙａｎｄＳｉｍｕｌａｔｉｏｎ①ＬｉＪｕｎ（李俊）ａｎｄＬｕＤａｒｅｎ...