简介：这篇论文论述一个新算法由改变形式的参数在结构预言损坏的地点和严厉。损坏察觉的一个存在算法被考察，新算法被提出改进损坏由在存在算法消除乖僻的假设和限制定位和严厉评价的精确性。当适用于为哪个预先损坏的two-dimensionalframe结构时，损坏预言精确性数字地为每个算法被估计，损坏以后的形式的参数为仅仅颤动的一些模式是可得到的。当时，分析结果说明新算法的改进精确性与存在算法相比。

简介：这份报纸证明一个环形的模式能从北方大西洋摆动(NAO)和Pacific/North美国人(PNA)的联合被构造模式。伪环状，南方的偶极子和构造环形的模式的垂直barotropy大西洋摆动(AO)模式类似于那些。它也以变化贡献是一个主导的模式。而且，它与AO的时间的关联是相当强壮的。这个新环形的模式优于AO因为它合并PNA的大部分并且做行动的中心在和平更强壮、比AO的更身体上相关。或，更通常，它可以被认为是不同于AO的一个物理模式。这研究的结果也显示NAO-PNA观点包含大多数AO的信息，而AO观点仅仅关于NAO-PNA的信息的一半包含。因而，NAO-PNA观点被作者考虑比AO的更全面。

简介：在北方亚洲气旋(NAC)之间的关系活动和南部的环形的模式(SAM)在这研究被记录。NAC索引(NACI)的定义在诺思亚洲基于大气的相对涡度。分析产出在以前的冬季之间的重要积极关联南部的环形的模式索引(SAMI)和春天NACI在内部年度可变性，与0.51的一个关联系数在期间19482000。NAC相关、SAM相关的大气的一般发行量可变性的分析表明如此的一种关系。学习进一步表明当冬季SAM变得强壮时，在热带西方的太平洋的大气的传送对流将加强的春季和本地哈德利发行量将被加强。作为结果，在华南上的反常减退运动使温度坡度在底层加强了并且在高水平加强喷气，哪个对NAC的发展有益活动。

简介：

简介：Inthispaperthe0-1combinedBEMisadoptedtosubdividethecomputationaldomainboundary,andtodiscretizetheGreen’sintegralexpressionbasedonLaplaceequation.TheFEMisusedtosubdividethewavesurfaceanddeducethesurfaceequationwhichsatisfiesthenonlinearboundaryconditionsonthesurface.TheequationswithpotentialfunctionandwavesurfaceheightasanunknownquantitybyapplicationofTaylorexpansionapproachcanbesolvedbyiterationwithinthetimestep.Inm-timeiterationwithinthecomputationalprocessoftimestep(n-1)ΔttonΔt,theresultsofthepreviousiterationaretakenastheinitialvalueofthetwo-orderunknowntermsinthepresentiteration.Thus,animprovedtrackingmodeofnonlinearwavesurfaceisestablished,andnumericalresultsofwavetanktestindicatethatthismodeisimprovedobviouslyandismoreprecisethanthepreviousnumericalmodelwhichignoredthetwo-orderunknowntermsofwavesurfacelocationandvelocitypotentialfunctionincomparisonwiththetheoreticalvalues.

简介：Oceanicgeneralcirculationmodelshavebecomeanimportanttoolforthestudyofmarinestatusandchange.ThispaperreportsanumericalsimulationcarriedoutusingLICOM2.0andtheforcingfieldfromCORE.WhencomparedwithSODAreanalysisdataandERSST.v3bdata,thepatternsandvariabilityofthetropicalPacific–IndianOceanassociatedmode(PIOAM)arereproducedverywellinthisexperiment.Thisindicatesthat,whenthetropicalcentral–westernIndianOceanandcentral–easternPacificareabnormallywarmer/colder,thetropicaleasternIndianOceanandwesternPacificarecorrespondinglycolder/warmer.ThisfurtherconfirmsthatthetropicalPIOAMisanimportantmodethatisnotonlysignificantintheSSTanomalyfield,butalsomoreobviouslyinthesubsurfaceoceantemperatureanomalyfield.Thesurfaceassociatedmodeindex(SAMI)andthethermocline(i.e.,subsurface)associatedmodeindex(TAMI)calculatedusingthemodeloutputdataarebothconsistentwiththevaluesoftheseindicesderivedfromobservationandreanalysisdata.However,themodelSAMIandTAMIaremorecloselyandsynchronouslyrelatedtoeachother.

简介：这份报纸建议我们叫作鈥渟egregated预言鈥?预言是nonstationary的气候时间系列的一条新途径。这条途径基于实验模式分解方法(EMD)，它能分解一时间信号进基本摆动的部件的一个有限、通常小的数字。到这的能力接近的测试，一些预言实验为几个气候时间系列被执行。试验性的结果证明这条途径能分解气候时间系列的nonstationarity并且分离在不同模式部件之间的非线性的相互作用，它从而能改进这些原来的气候时间系列的预言精确性。关键词EMD-nonstationarity-非线性的系统-气候预言-时间系列预言

简介：TheIndianOcean(IO)seasurfacetemperature(SST)wasanalyzedbyusingempiricalorthogonalfunction(EOF),andtheleadingmodeofIndianOcean(LMIO)SSTwasextracted.ThemajorspatialandtemporalcharactersofLMIOwerediscussed,andtherelationshipsbetweenLMIOwithIndiansummermonsoon(ISM)andwithChinasummerrainfalls(CSR)wereinvestigated,thentheimpactsofLMIOonAsiansummermonsoon(ASM)circulationwereexplored.Somenotableresultsareobtained:ThesignificantevolutionalcharactersofLMIOaretheconsistentwarmingtrendofalmostthewholeIObasin,thedistinctivequasi-3-andquasi-11-yroscillationsandremarkablyinterdecadalwarmingin1976/1977and1997/1998,respectively.TheLMIOimpairedthelowerlevelcirculationofISMandwascloselyrelatedwiththeclimatetrendofCSR.ItwasassociatedwiththeweakeningofSouthAsianhigh,theeasterlywindssouthoftheTibetanPlateau,andthecross-equatorialflowsover10°-20°N,40°-110°Eattheupperlevel;withthestrengtheningofSomalicross-equatorialjetbuttheweakeningofthecirculationofISMinthesectorofIndia,thestrengtheningofsouthwindoverthemiddleandlowerreachesofYangtzeRiverandSouthChinabuttheweakeningofsouthwesterlywindsoverNorthChinaatlowerlevelandwiththeincreasingofsurfacepressureovertheAsianContinent.ChangesinthemoisturefluxtransportsintegratedverticallyoverthewholetroposphereassociatedwithLMIOaresimilartothoseinthelowerlevelcirculation.Tosumup,thesignificantSSTincreasingtrendofIObasinwasoneoftheimportantcausesforweakeningoftheASMcirculationandthesouthwardsshiftingofChinasummerrainband.

简介：Themultivariatestatisticalanalysisisprofitablyapplicabletothestudyofconodontmultielementtaxonomy.R-modeclusteranalysesofquantitativeand0-1dataarecarriedoutheretoclassifymorethan6000discreteLowerTriassicconodontspecimensbelongingto108kindsofconodontelementsfromWesternGuangxi.TheresultsofR—modeclusteranalysisrevealmoredirectlytherelationshipamongmanyisolatedconodontelements,andtheyalsoprovethatthere-sultsofthelogicalinferencearebasicallycorrect,i.e.108kindsofconodontelementscanbeidenti-fiedinto32speciesbelongingto11generaofconodonts.TheapplicationofR-modeclusteranalysismultielementtaxonomybythemethod,hasbroughtabout4significantconclusions,whichcanbeusedbyconodontresearchersasreference.

简介：在南方印度洋的年度subduction率被分析数据吸收(苏打)在19502008的时期输出的简单海洋计算。为潜在的密度班的subduction率普查在南方印度洋副热带的旋回的西南的部分显示出相应于印度洋副热带的模式水(IOSTMW)的一座山峰。混合层深度越深，在现在的气候学的混合层前面和联系相对更快的发行量越sharper导致了更大的侧面的正式就职，它首先dominantsIOSTMWsubduction率，当时与从垂直的抽的仅仅次要的贡献。没有概论的损失，通过在最小的垂直温度坡度(LMVTG)的层的水特征的小心的分析，作者建议IOSTMW作为thermostad被识别，与低潜在的涡度的侧面的最小(PV，吗不到200湯漠?敌????猯'T￣牯嘠污猼扵?????汁?桴獥??晲捡楴獮栠摡猠杩楮楦慣瑮愠瑣癩瑩?湡?瑳'L汩瑩?景攠畭獬晩捩瑡潩?湵敤?慶楲畯???牦浯??琠?㈱??琠浥数慲畴敲爠湡敧?牦浯㈠‰潴ㄠ?讬鶝??顟????醰??????颮鑈？？

简介：ToretrievewindfieldfromSARimages,thedevelopmentforsurfacewindfieldretrievalfromSARimagesbasedontheimprovementofnewinversionmodelispresent.GeophysicalModelFunctions(GMFs)havebeenwidelyappliedforwindfieldretrievalfromSARimages.AmongthemCMOD4hasagoodperformanceunderlowandmoderatewindconditions.AlthoughCMOD5isdevelopedrecentlywithamorefundamentalbasis,ithasambiguityofwindspeedandashapegradientofnormalizedradarcrosssectionunderlowwindspeedcondition.ThisstudyproposesamethodofwindfieldretrievalfromSARimagebycombiningCMOD5andCMOD4FiveVV-polarisationRADARSAT2SARimagesareimplementedforvalidationandtheretrievalresultsbyacombinationmethod(CMOD5andCMOD4)togetherwithCMOD4GMFarecomparedwithQuikSCATwinddata.Theroot-mean-squareerror(RMSE)ofwindspeedis0.75ms-1withcorrelationcoefficient0.84usingthecombinationmethodandtheRMSEofwindspeedis1.01ms-1withcorrelationcoefficient0.72usingCMOD4GMFaloneforthosecases.TheproposedmethodcanbeappliedtoSARimageforavoidingtheinternaldefectinCMOD5underlowwindspeedcondition.

简介：Applyingtheempiricalorthogonalfunction(EOF)analysistotheseasurfacetemperature(SST)fieldofthetropicalPacificandIndianOceansfordeterminationofthefirsteigenvectorfield,thecurrentworkrevealsthattherearesignificantzonalgradientsofSSTinallseasonsoftheyearinthenorthwesternandeasternIndianOceanandequatorialcentralandeasternPacificandwesternPacific.ItisalsofoundthatthevariancecontributionratesofthefirstEOFmodeofeveryseasonismorethan33%.ThisshowsthatthiskindofspatialdistributionoftheSSTisstable.ThispatternisnamedPacific-IndianOceansSSTAmode.Throughcarefulanalysisandcomparison,anindexofthemodewasdefined.

简介：Weanalyzethedecadalvariationofthestratospheretropospherecoupledsystemaroundtheyear2000byusingtheNCEPreanalysis-2data.Specifically,therelationshipbetweentheNorthernHemisphereAnnularMode(NAM)andthetroposphericEastAsiantroughisinvestigatedinordertofindtheeffectivestratosphericsignalsduringcoldairoutbreaksinChina.Statisticalanalysesanddynamicdiagnosesbothindicatethatafter2000,increasedstratosphericpolarvortexdisturbancesoccurandtheNAMismainlyinnegativephase.Thetroposphericpolarareasaredirectlyaffectedbythepolarvortex,andinthemidlatitudes,theUralblockinghighandEastAsiantrougharemoreactive,whichleadtoenhancedcoldairactivitiesineasternandnorthernChina.Furtherinvestigationrevealsthatunderthiscirculationpattern,downwardpropagationsofnegativeNAMindexarecloselyrelatedtotheintensityvariationoftheEastAsiantrough.WhennegativeNAManomaliespropagatedowntotheuppertroposphereandreachacertainintensity(standardizedNAMindexlessthan1),theyresultinapparentreinforcementoftheEastAsiantrough,whichreachesitsmaximumintensityaboutoneweeklater.Thenortherlywindbehindthetroughtransportscoldairsouthwardandeastward,andtherangeofinfluenceandtheintensityarecloselyassociatedwiththetroughlocation.Therefore,theNAMindexcanbeusedasameasureofthesignalsfromthedisturbedstratospheretogivesomeindicationofcoldairactivitiesinChina.

简介：Anoptimalactiveslidingmodecontrollerwithspecifieddecayratedesignisproposedtocontrolthewave-inducedoffshorejacket-typeplatformwithactivemassdamper(AMD).IrregularwaveloadingisapproximatedbyfinitesumsofFourierseries,anditsdynamiccharacteristicsaregovernedbyanexosystemderivedfromthelinearizedMorisonequation.Theoffshoreplatformsystemisfirstdecomposedintotwovirtualsubsystemsbasedonalineartransformation.ByconsideringthevelocityofAMDasavirtualcontrolforceforthefirstsubsystem,theoptimalvirtualcontrollerisderived.Furthermore,anoptimalslidingmodesurfacewithspecifieddecayrateisproposed.Then,theactiveslidingmodecontrollerisdesignedtoensurethatthestatetrajectoriesreachtheslidingsurfaceinfinitetimeandremainonitthereafter.Numericalsimulationisemployedtoverifytheeffectivenessoftheproposedapproach.

简介：这研究在Jiaoshiba区域和煤气的累积模式的Longmaxi形成基于沉积条件，器官的地球化学，存储空格，物理性质，岩性学和页岩气体水库的煤气的内容被总结然后与那相比在北美洲。在在Jiaoshiba的Longmaxi形成的页岩气体水库有好地质的条件，优秀页岩的大厚度，高器官的满意的、高煤气的内容，好物理性质，合适的深度，好保藏条件和好水库类型。在深架的底部的优秀页岩是为页岩气体探索和开发的主要目标间隔。在Longmaxi形成的页岩气体经历了三个主要reservoiring阶段：烃产生和压缩的早阶段页岩气体水库是什么时候，首先形成了；深埋葬和大规模烃产生的中间的阶段，它与页岩气体引起了水库的丰富；迟了的阶段高举，侵蚀和破裂开发当页岩气体水库最后被形成时。

简介：

简介：自2005年1月1日福建省气象台高空组及邵武高空组L波段雷达正式投入业务化运行以来，运行情况基本正常，提高了气象资料的准确性，减少了误差。现就省台高空组和邵武高空组在日常工作中遇到的部分问题和操作时应注意的地方，提出以下处理技巧供参考。

简介：ThispaperreportssomeresearchesondistributionoflargevolumeimagedatausingtechniquesoftheMixedModeofJavaServletandCOMonWeb.Thearchitectureandkeytechnologiesarediscussedindetail.Thewebdistributionsystemofimageisimplementedandthesystemistestedbytheapplicationinstances.Atlast,theadvantagesanddisadvantagesforthiswebimagedistributionmodeareanalyzed.

简介：目前国内大部分探空站已经启用新一代探空仪——上海长望气象科技有限公司生产的L波段电子探空仪。新探空仪的数据率、测量准确度和可靠性都有较大的提高。新探空仪使用的湿度敏感元件是碳湿敏电阻。我们利用工厂添置的能测到-30℃低温的高精度湿度校准设备，进行了大量静态测试，进一步验证了碳湿敏元件与老探空仪使用的肠衣敏感元件相比，灵敏度高，滞后小，在高空低温期间感应陕，测量准确度有较大提高。

简介：呼和浩特观象台自2008年9月1日使用L波段雷达─GTS1型数字式探空仪气象探测系统,综合探测已2个多月了,在工作期间积累了一些经验,与各位同行交流。1