简介：在夏天，紧张，地点和vertical的不同汇编副热带的高度和早/以后的时间组织它的季节向北跳在中国上引起不同降水模式。因此，副热带的高活动和它的原因在在中国和Chinadrought/flood的原因上的极端气候的事件的出现期间被学习改进预报的天气。自从1990年代，副热带的高活动的物理机制上的许多理论研究被做了，它集中于加热的热带diabatic的效果并且在副热带的高形成和变化上的空间不一致的加热，但是很少考虑动态环境变化的影响在它上由西的系统或副热带的上面的喷气的反常活动产生了。根据动态理论和摘要的原则，此处，在2003的HuaiheRiverfloods上的副热带的高活动和它的影响被分析，并且在副热带的高活动和它的形成机制的西、副热带、热带的循环的反常特征的效果进一步被学习，它被期望对在中国的运作的夏天降雨预报有用。

简介：ＤＩＳＴＲＩＢＵＴＩＯＮＯＦＬＯＷＦＲＥＱＵＥＮＣＹＷＡＶＥＳＩＮＮＯＲＴＨＰＡＣＩＦＩＣＡＮＤＩＮＴＲＡＳＥＡＳＯＮＡＬＡＢＮＯＲＭＡＬＩＴＹＯＦＴＨＥＷＥＳＴＥＲＮＰＡＣＩＦＩＣＳＵＢＴＲＯＰＩＣＡＬＨＩＧＨＬｉＸｉｎｇｌｉａｎｇ（李兴亮）（Ｍｅ...

简介：季节的干旱是在潮湿的气候的普通出现。一年2003在时期期间是最干燥的年19852011在东南的中国。这研究的目的是阐明在2003的非凡的干旱的影响，与旋涡流动大小相比在200411期间在土壤水分蒸发蒸腾损失总量(et)和相关因素的动力学上，以及他们的内在的机制，在在东南的中国的副热带的具球果的种植园。在集中的干旱时期期间从5.34～1.84公里减少了并且在恢复干旱时期的subsquent期间恢复了到4.80公里，被发现那每日的et。路径分析显示那et被华盖传导力和深土壤水内容(50厘米)主要分别地在集中的干旱和恢复干旱时期期间决定。华盖传导力当承受干旱应力时，在et上抵消空气蒸汽压力赤字的积极效果，当华盖传导力在迟了的成长季节期间在et上提高了空气温度的积极效果时。因为这种植园的好根主要在浅土壤，和土壤被散布，流水在上面40厘米没满足需求因为et，有气孔的闭合和落叶作为对干旱应力的生理的回答明显。

简介：

简介：这份报纸基于中国国家气候中心编的数据调查向西和平的副热带的高度(WPSH)紧张的interannual变化。从环境预言的国家中心和大气的研究(NCEP/NCAR)的国家中心的每月的分析数据也被用来学习在WPSH紧张和表面热流动异例之间的带落后关系。三主要调查结果如下：首先，WPSH紧张介绍好季节的坚持，特别从冬季给随后的夏天。坚持在1977以后是更重要的，特别从春天，并且从夏天到夏天到秋天；逆旋风的异例的坚持比气旋的异例显著地好。第二，表面热流动在在WPSH紧张的强壮、弱的年之间的异常模式对面趋于到现在，它在在海洋上的潜伏的热流动是特别有效的。在在每季节的表面热流动和WPSH紧张之间的同时的关联由类似的关键区域被标记。最后，从强壮的夏天WPSH的前面的冬季的表面热流动在西北太平洋上相当类似于强壮的春天WPSH，而是积极异例，日本的南方尤其是更强壮。弱年里的状况除了在西北太平洋上的那些是类似的：冬季表面热流动为弱夏天WPSH为弱春天WPSH，而是积极异例显示出否定异例。在以前的冬季的表面热流动在在随后的春天和夏天维持WPSH紧张起一个重要作用，这被建议。

简介：

简介：

简介：与关联分析和因素分析方法，主要雨季的副热带的高索引上的前面的和平的SST的效果被讨论。关联分析的结果证明五个副热带的高索引上的SST的效果不同inseasons和区域。SST的变化主要影响副热带的高度的区域和紧张索引，在山脉线索引上由西方的山脉索引，和效果列在后面比在北方边界索引上更显著。因素分析的结果表明每个季节的SST的第一普通thctor主要反映了在赤道的太平洋和西方的太平洋的中央、东方的部分之间的SST变化的反的关系，它比SST的另外的普通因素在主要雨季与副热带的高索引更好相关。interdecadal变化的分析显示SST的变化对LaNi(n)的出现导致在1970年代的结束前的一个事件，以便在夏天副热带的高度是可能的更弱、更小、定位东方并且向北方。在1980年代以后，相反的特征占优势。

简介：在在东亚上的降水之间的关系(20祣汣湯獥

简介：TyphoonMegi,the13thtyphoonofthe2010typhoonseason,wasselectedforcasestudybyutilizingtheWeatherResearchandForecasting(WRF)model.Twelvesensitivityexperimentswithvariousinitialtropicalcyclone(TC)intensitiesandsizeswereconductedtoinvestigatetheirimpactsonthesimulationoftyphoontrack.InteractionbetweenTCandthewesternPacificsubtropicalhigh(WPSH)wasalsoanalyzedtoexplorethemechanismfortheimpactonTCtrackoftheinitialTCintensityandsize.NumericalresultsindicatethatthesimulatedTCsizeandTCtrackaresensitivetoinitialTCintensityandsize.StrongerinitialTCintensityandlargerinitialTCsizeoftenleadtolargersimulatedTCsizeandmakeTCturnnorthwardearlier.Furtheranalysissuggeststhat,withtheincreaseofinitialTCintensityandsize,moreairmassentersintotheTCregion,whichsubsequentlyreducestheextentofWPSH.Asaresult,thesteeringflowchangessignificantlyandeventuallycausestheTCtoturnnorthwardearlier.ThepresentstudyconfirmsthattheinitialTCintensityandsizehavecertaininfluencesontheTCtracksimulation,whichdemonstratestheimportanceofaccurateinitialconditionforsuccessfulsimulationoftheTCintensityandTCtrack.Moreover,italsodeepensourunderstandingoftheinteractionbetweenTCandWPSH,provideshelpfulcluesfortheTCtrackchangestudy,anddiscussesthefuturedirectionsforimprovementofTCtrackforecast.

简介：Basedonthe4-layerdb1waveletpacketandshannonentropydecomposition/reconstructionethodandtheNCEP/NCARdailyreanalysisdataset,thecorrelationbetweentheSouthChinaSeasummermonsoonandtheNorthernHemispherePacificsubtropicalhighseasonalmodality/shiftwasstudiedanddiscussed,andacorrespondingsummermonsoonfrequency-bandenergycriterionwasdefinedandintroducedfordiagnosingthePacificsubtropicalhigh'smodality/shift.AfewnewphenomenaandcorrelationbetweentheSouthChinaSeasummermonsoonandtheNorthernHemispherePacificsubtropicalhighwerealsorevealedandpresented.

简介：Basedonthedataoftemperatureandsalinityofthe137°Esectioninthewintersandsummersfrom1967to1995,thegeo-strophiccurrentofthesectioniscalculatedandanalyzed,andthedriftingtracksofthesatellitetrackingdriftbuoydistributedonthe144°Esectionarealsoanalyzed.InlightofthesurfacedynamicheightdistributionintheCSKatlas,thispapercomparessomefeaturesoftheSubtropicalCountercurrent,theNorthEquatorialCurrentandtheNorthEquatorialCountercurrent.Themainresultsareasfollows:1.TheSubtropicalCountercurrent,theNorthEquatorialCurrentandtheNorthEquatorialCountercurrentarenotsimplesinglecurrents,buthavetwobranchesormore.Oneofthecommonfeaturesofthethreecurrentsmentionedaboveis"multi-branching"ofthecurrent.2.Thezonaldistributionoftheflowvelocitystructure,thealternateandintermittentoccurrenceoftheeastwardandwestwardflows,withashallowerflowlayerandbelongingtothesurfacefloworsubsurfacef

简介：Anintercomparisonofsummertime(JJA)subtropicalgeopotentialheightsfromtheERA-40andNCEP/NCARreanalysisisspecificallyconductedoverEastEurasiaandthewesternNorthPacific.TheNCEP/NCARisobviouslylowerthantheERA-40inthemid-to-lowertroposphereinmostregionsofEastEurasiabeforethemid-1970s,butbecomeshigherthantheERA-40afterthemid-1970sandthusdemonstratesstrongerincreasedtrendsduringtheperiodof1958-2001.BothreanalysesarelowerthantheobservationsinmostregionsofChina.TheNCEP/NCARespeciallyshowstremendouslysystematiclowervaluesbeforethemid-1960sanddisplaysabruptchangesbeforethe1970s.SeveralindicesofthewesternNorthPacificsubtropicalhigh(WNPSH),calculatedfrombothreanalyzedsummergeopotentialheights,alsorevealthatthevariationtrendoftheNCEP/NCARisstrongerthanthatoftheERA-40inthemid-to-lowertropospherefrom1958to2001.Throughsingularvaluedecomposition(SVD)analysis,thesummergeopotentialheightsat500hPafromtheERA-40arebetterthantheNCEP/NCARcounterpartsatinteractingwiththeprecipitationovertheEastAsianmonsoonregion.TheresultsindicatethattheNCEP/NCARinthemid-and-lowertropospheremayoverestimateinterdecadalchangesandshouldbeusedcautiouslytostudytherelationshipbetweentheWNPSHandprecipitationovetherEastAsiaMonsoonregionbeforethemid-1970s.

简介：

简介：

简介：

简介：ByemployingtheNCEP/NCARreanalysisdatasets(1000to10hPa,2.5°×2.5°),thethermalforcingimpactsareanalyzedofaneasterlyvortex(shortenedasEV)overthetropicaluppertroposphereonthequasi-horizontalmovementoftheWesternPacificSubtropicalAnticyclone(shortenedasWPSA)during22-25June2003.Therelevantmechanismsarediscussedaswell.Itisshownthatthedistributionandintensityofthenon-adiabaticeffectneartheEVresultintheanomalouseastwardretreatoftheWPSA.TheWPSAprefersextendingtothecolderregion,i.e.,itmovestowardtheregioninwhichthenon-adiabaticheatingisweakeningorthecoolingisstrengthening.DuringtheWPSAretreat,theapparentchangesofnon-adiabaticheatingillustratethecharacteristicsofenhancedcoolingintheeastsideoftheEV.Meanwhile,thecoolinginthewestsideexhibitsaweakenedeastwardtrend,mostprominentlyat300hPainthetroposphere.Theevidenceonthefactorscausingthechangeinthermalconditionisfound:themostimportantcontributiontotheheating-ratetrendistheverticaltransportterm,followedinturnbythelocalchangeintheheatingratetermandthehorizontaladvectionterm.Asaresult,theatmosphericnon-adiabaticheatinggeneratedbytheverticaltransportandlocalchangediscussedaboveismainlyconnectedtotheretreatoftheWPSA.

简介：Inthispaper,acloserelationshipbetweentheintraseasonalvariationofsubtropicalhighoverEastAsiaandtheconvectiveactivitiesaroundtheSouthChinaSeaandthePhilippinesisanalysedfromOLRdata.Thisrelationshipisstudiedbyusingthetheoryofwavepropagatinginaslowlyvaryingmediumandbyusingaquasi-geoslrophic,linear,sphericalmodelandtheIAP-GCM,respectively.TheresultsshowthatwhentheSSTiswarmingaroundthewesterntropicalPacificorthePhilippines,theconvectiveactivitiesareintensifiedaroundthePhilippines.Asaconsequence,thesubtropicalhighwillbeintensifiedoverEastAsia.ThecomputedresultsalsoshowthatwhentheanomalyofconvectiveactivitiesarecausedaroundthePhilippines,ateleconnectionpatternofcirculationanomalieswillbecausedoverSouthAsia,EastAsiaandNorthAmerica.

简介：TheNCEP/NCARIIdailymeanreanalysisdataandobservedprecipitationdataareemployedtoinvestigatethewestwardextensionofthewesternPacificsubtropicalhigh(WPSH)duringtheheavyrainperiodoverthesouthernChinainJune2005.Resultsshowthattheremayexistarelationshipbetweentheeast-westshiftoftheWPSHandtheprocessofasouthernChinaheavyrain.TheanalysisindicatesthattheverticalmotionintheWPSHareaismainlycausedbythelatentheatreleaseofmonsoonrainbeltsonitsnorthernandsouthernsides.TheverticalmotioncouldcausetheaccumulationofairmassinthecenterandwestoftheWPSH,whichleadstoitsstrengthening.TheappearanceofthenorthernandsouthernmonsoonrainbeltscouldnotonlyenhancetheWPSHbystrengtheningthedescendingdraft,butalsoexcitethedevelopmentofpositivevorticityandrestricttheWPSH'smovementinthenorth-southdirection.Moreover,theIndianmonsoonrainfalltothewestoftheWPSHmayexcitethedevelopmentofanticyclonicvorticityonitseasternside,whichleadstothewestwardextensionoftheWPSH.

简介：副热带的高度的山脉位置上的跨equatorial流动和它的影响的变化特征在这份报纸被分析了。它如下被显示出。(1)Somalicross赤道的流动的紧张与南部的半球的越来越强烈地在过去的44年和Northem半球交换的气流里在冬季和夏天正在增加。(2)在5月的Somalicross赤道的流动在台风季节在副热带的高度的山脉位置上有大多数影响，介绍积极关联。(3)诊断与在2005的真实状况一致。