简介：ThispaperfocusesonthestudyofoceanbathymetricinversionfromsatellitealtimeterdatabyusingFFTtechnique.Inthisstudy,thefree-airgravityanomaliesovertheSouthChinaSeaaredeterminedbythesatellitealtimeterdataofGEOSAT,ERS-1,ERS-2andT/P.Andthe2.5′×2.5′bathymetrymodelinSouthChinaSeaiscalculatedfromthegravityanomalieswiththeinversionmodelgiven.Aftertheanalysisoftheinversionandthecomparisonbetweentheresults,someconclusionscanbedrawn.

简介：<正>Complicatedsystem(collage)ofblockstructuresandorogenicbeltshadbeenformedintheS-EofAsiabycollisionprosessesinMesozoicandCenozoicperiods.ThiscollagebegantoforminearlyMesozoicasaresultofdestructionofthecontinentalProterozoic-Paleozoiccrustandmovementsoflargeterreines.IndosinianandYangtzeblocks(smallplates)arethemostcharacteristicblock-terranesoftheregion;MyanmarandSongpanblocksystemsarelessrepresentative.Variousetypesofcollisionbeltsaresituatedbetweentheseblocksandontheperipheryoftheplates.Theyconsistofconcordantfoldedsystemsandshearzones.Someofthesesystemsandshearzones

简介：Thecompositionofdetritalmineralswithgradesof0.063-0.25mminthesuperficialsedimentofSouthYellowSeaismainlystudiedinthepaper.Theresearchresultshowsthatthemineralscanbedividedintomorethanfiftysorts.Thelightmineralsaremainlyfeldspar,quartz,mica,etc.Theheavymineralsaremainlycomposedofamphibole,epidote,mica,autogenypyrite,magnetite,hematite,garnet,zirconandsoon,whichmainlydistributeinthesedimentsofsiltyclayandlutaceoussilt.Accordingtothecontentanddistributionofthemainminerals,theresearchareaisdividedintofivemiteralcombinationprovinces.Theassembledtypesofmineralsineveryprovincehavecloserelationshipwithitshydrodynamicconditionsandsedimentaryenvironment.Andthesortsofdetritalmineralsalsoshowthatthedetritalsubstancesinthesedimentaryareasmainlyoriginatefromthedrainageareasofrivers,bedrockweathering,andtransformedsediment,etc.

简介：<正>ThenorthChinablockisborderedonthenorthbytheYinShan,onthewestbytheHelanShan,onthesouthbytheQinLing-DabieShan,andtotheeastbythesea.ThesouthChinablockisborderedonthenorthbytheDabaShan(QinLing)-DabieShah,onthewestbytheLongmenShan-DaliangShan,onthesouthwestbythegreatfaultalongtheRedRiver,andtotheeastandsoutheastbythesea.Thetopographyofthenorthissimpleandeven,likeatwo-stagedterracehigherinthewest.Thoughthatofthesouthisalsohigherinthewest,itisveryunevenwithaboundantlowerandmiddlemountainsandhills.TheQinLing-DabieShanisanarrowbeltwiththe

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简介：基于在时期期间在华南上从17个车站拿的每日的降水数据19612003，在在在与可能的机制一起的1990年代初的华南上的夏天极端降水事件的一个突然的变化在华南海上与潜伏的热流动的异例连接了，在印度支那半岛上的可感热流动被检验。结果两个都显示出那annual和夏天极端降水事件有明显内部十的变化并且自从1990年代初，显著地增加了。而且，在华南海上的潜伏的热流动和在印度支那半岛上的可感热流动也有明显内部与极端降水的一致的十的变化，和影响不同的月的极端降水分别地。他们的效果被完成由内部在通过华南海夏季风的华南上的加强的传送对流的十的增加。

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简介：TheDevoniansuccessioninSouthChinaiswell-knownforitscompletedevelopment,vari-fiedsedimentarytypes,remarkablelithofaciesvariationandabundantmineralresources.TheSouthChinaplatewasformedbythecollisionandcollageoftheYangtzeplateandtheCathaysianplate.ThecollisionbeganapproximatelyattheJinningianstageandthecollagewasnotfinalizeduntiltheGuangxianmovement.ItwasontheSouthChinaplatewithasomewhatdifferentnatureofthebasementthattheDevoniandepositionformed.

简介：AmarinestratigraphicsequenceacrossthePliocene/Pleistoceneboundaryhasbeenfoundinthenorth-erncontinentalshelfoftheSouthChinaSea.ThemarineQuaternarydepositsintheYinggehaiBasinmayex-ceed2,000minthickness,probablyprovidingthebestsectionforstudyingthelowerboundaryofthemarinePleistoceneinSouthChina.TheverticalsuccessionwithplanktonicforaminifersandnannofossilsrevealedinboreholesinthebasinhasbeenwellcorrelatedwiththatintheinternationalstratotypesectionofthePliocene/PleistoceneboundaryatVrica,Italy,resultingintheacquirementofabiostratigraphicboundaryat1.64Ma.Thisboundary,however,doesnotcoincidewithanyprominentlithologicalpalaeoenvironmentalchangesinthestudyareaandcanhardlybeusedingeologicalpractice.Thereare,incontrast,significantchangesatthelevelofLADofGloborotaliamulticameratasensulatolocatedbelowtheabove-mentionedboundary.Thepercentageofplanktonicforaminifersinthetotalpopulationandpreservationofforaminiferaltestsdisplaygreatchangesatthislevelcorrespondingtoaclearonlapontheseismicprofilesandindicatingadepositionalhiatusatca.2.0-2.5Ma.SincethelevelcanbewidelytracedinthePearlRiverMouthBasinandtheBeibuGulfBasinandwellcorrespondswiththemarkeddepositionalenvironmentalchangesrecordedinthewestPacificandotherregions,itisrecommendedthatthePlio/PleistoceneboundarybedrawnatthelevelofGr.multicameratasensulatoLAD,roughlyconcurrentwiththeGauss/Matuyamaturn.

简介：系在的系统为钻在的半能沉入水中的钻塔起一个重要作用深海。详细分析在进行了很好在2009在华南海在一个深海的地点钻的试用的一个半能沉入水中的钻塔的绳索上被执行。钻塔是30岁并且与457m的设计的最大的操作的水深度有一个浅平台。后面的系在分析，一个系在的图案被给那要求钻塔原版绳索系统升级。升级包括了几革新，例如安装八个更大的锚，即代替原来的锚并且插入一另外有存在的链的钢电线的600m。所有这些被做为在职务要保持进行在476m的水深度钻的钻塔提高钻塔的系在的能力。钻的全面持续时间是50天和证明在当它在华南海正在钻试用很好时，达到使钻塔静止的目标有效的升级的绳索系统。这个成功的运动证明一个更旧的半能沉入水中的钻塔能雇用在小心的设计并且到原来的绳索系统的合适的升级和修正以后在深水里钻。

简介：ＳｏｕｔｈＣｈｉｎａＥｌｅｃｔｒｉｃＰｏｗｅｒＭａｒｋｅｔＣｏｎｄｉｔｉｏｎａｎｄＯｕｔｌｏｏｋｆｏｒＣｏｍｍｅｒｃｉａｌｉｚｅｄＯｐｅｒａｔｉｏｎＷａｎｇｆａｎｇＡｂｓｔｒａｃｔＴｈｉｓａｒｔｉｃｌｅｓｔａｒｔｓｆｒｏｍｈｏｗｔｈｅＳｏｕｔｈＣｈｉ...

简介：ThemeasurementsbyusingADCP(500KH)andCTDweremadeduringAugust2000inthesouth(37°55'N,120°25'E)oftheBohaiSea,wherethewaterdepthwasabout16.5m.Thedataofhorizontalvelocitywithsamplingintervalof2minin7layerswereobtained.Thepowerspectrumanalysisofthesedataindicatesthatthereareveryenergeticinfragravitywaveswithaperiodofabout6min.Thecoherencespectrumanalysisandtheanalysisoftemporalvariationofshearshowthattheseinfragravitywavesaremainlythefreewavemodel(propertiesofedgewaves),inthemeantimetheypossesssomecharacteristicsofinternalwaves,whicharelikelyduetothedistinctivemarineenvironmentinthisarea.Itisspeculatedonthattheinstabilityprocesses(chieflyshearinstability)ofshearedstratifiedtidalflowowingtotheeffectofsea-floorslopeinthecoastalareamightbethemainmechanismgeneratingtheseinfragravitywaves.

简介：Dearcolleaguesanddistinguishedguests:Onbehalfoftheorganizingcommitteeofthe11thSouthChinaInternationalCongressofCardiology(SCC),itisourdistincthonortoinviteyoutoattendtheSCCCongress,whichisgoingtobeheldon9-12April,2009atDongfangHotel,Guangzhou,China.

简介：ＳｔｒｅｎｇｔｈｅｎｉｎｇＮｏｎ－ｇｏｖｅｒｎｍｅｎｔａｌＥｘｃｈａｎｇｅｓａｎｄＣｏｏｐｅｒａｔｉｏｎｂｅｔｗｅｅｎＣｈｉｎａａｎｄＳｏｕｔｈＡｆｒｉｃａｂｙＺｈｏｎｇＷｅｉｙｕｎＡｔｔｈｅｉｎｖｉｔａｔｉｏｎｏｆｔｈｅＣｈｉｎｅｓｅＡｓｏｃｉａｔ...

简介：Basedonacurrentfogdetectiontheory,amultibandthresholdmethodforMODISdatawasputforwardtodetectdaytimefogintheSouthChinaSea.ItusedBands1,2,18,20and31ofMODISdatatoseparatefogfromthecloudandtheseasurface.Thedigitaldetectionindexeswereasfollows.IfRB1<20%,RB2<20%andRB1>RB2,thepixelwasidentifiedtobetheseasurface.IfRB1>55%,RB2>55%andTB31<273K,thepixelwasidentifiedtobeamiddle-andhigh-levelcloud.IfIFC>20,thepixelwasclassifiedtobeseafog.ThemethodwasverifiedwithseafogdataobservedfromthecoastalregionofGuangdongduringJanuary-April2011.Outofthe13samplesofsatellitedetection,ninewereconsistentwiththesurfaceobservations,threewereidentifiedtobelow-levelthecloudaccordingtothesatellitedetectionbutfogaccordingtothesurfaceobservations,andonlyonesamplewasidentifiedtobetheoceansurfacebythesatellitedetectionbutfogbythesurfaceobservations.BecausetheMODISdatacannotpenetratethecloudorfog,themodelwasdesignedforasinglefieldofviewwhichhadonlyonelayerofcloudorfog.Itcanaccuratelydistinguishfogwhichisnotcoveredbythecloud,butitidentifiesfogascloudiftheformeriscoveredbyacloud.Generallyspeaking,themodeliseffectiveandfeasible.

简介：GrowingevidenceindicatesthattheAsianmonsoonplaysanimportantroleinaffectingtheweatherandclimateoutsideofAsia.However,thisactiveroleofthemonsoonhasnotbeendemonstratedasthoroughlyashasthevariabilityofthemonsooncausedbyvariousimpactingfactorssuchasseasurfacetemperatureandlandsurface.ThisstudyinvestigatestherelationshipbetweentheAsianmonsoonandtheclimateanomaliesintheAsian-Pacific-American(APA)sector.Ahypothesisistestedthatthevariabilityoftheupper-troposphericSouthAsianhigh(SAH),whichiscloselyassociatedwiththeoverallheatingofthelarge-scaleAsianmonsoon,islinkedtochangesinthesubtropicalwesternPacifichigh(SWPH),themidPacifictrough,andtheMexicanhigh.ThechangesinthesecirculationsystemscausevariabilityinsurfacetemperatureandprecipitationintheAPAregion.AstrongerSAHisaccompaniedbyastrongerandmoreextensiveSWPH.TheenlargementoftheSWPHweakensthemid-Pacifictrough.Asaresult,thesouthernportionoftheMexicanhighbecomesstronger.Thesechangesareassociatedwithchangesinatmosphericteleconnections,precipitation,andsurfacetemperaturethroughouttheAPAregion.WhentheSAHisstronger,precipitationincreasesinsouthernAsia,decreasesoverthePacificOcean,andincreasesovertheCentralAmerica.PrecipitationalsoincreasesoverAustraliaandcentralAfricaanddecreasesintheMediterraneanregion.Whilethesignalsinsurfacetemperatureareweakoverthetropicallandportion,theyareapparentinthemidlatitudesandovertheeasternPacificOcean.

简介：用U.S.National，环境预言/公民的中心在1湯挠獡?桔?敲?瑬?桳睯摥琠慨?桴牥?獩愠挠楲楴慣?楤瑳湡散搠?潦?体噄?为大气的研究分析数据集中湩戠牡'覙H楮?瑡潭灳敨敲圮敨?桴?楤瑳湡散戠瑥敷湥猠灥牡瑡摥瘠牯楴散?獩猠慭汬牥琠慨?牯攠畱污琠?绥鳟彌B?潶瑲捩獥猠汥?牯慧楮敺椠Ь

简介：在这篇文章，backstripping技术在学习Qiongdongnan的沉淀人物被使用()盆(QDNB)以便理解它形成和进化的动态机制。同时，这个区域的地热的特征被总结，并且拉长的因素()上面的外壳，整个外壳，和全部，岩石圈被计算。QDNB被这个区域拉长并且变瘦的高沉淀率，高地热的坡度，高地热的热流动，和岩石圈描绘深度依赖者。因为欧亚的板，和平的板，印度澳大利亚人的板，和菲律宾的海板的相互的subductions，一个岩流圈地区肯定在东南亚洲大陆的岩石圈下面被限制了。这些人物显示那强壮的披风传送对流发生了，更低的外壳材料在领域离开流动了，它导致上面的外壳的快速的曲折均衡沉淀和岩流圈的uplift。

简介：SubmarinelandslideshavebeenobservedintheBaiyunDepressionoftheSouthChinaSea.Theoccurrenceofhydratesbelowtheselandslidesindicatesthattheseslopeinstabilitiesmaybecloselyrelatedtothemassivereleaseofmethane.Inthisstudy,weusedasimpleMonte-Carlomodeltodeterminethefirst-orderdeformationpatternofagravitationallydestabilizingslope.Theresultsshowthatastressconcentrationoccursduetohydratedissociationonthenearbyglidesurfaceandontopofagaschimneystructure.Uponthedissolutionofthegashydrate,slopefailureoccursduetotheexcessporepressuregeneratedbythedissociationofthegashydrates.Whengashydratesdissociateatshallowdepths,theexcessporepressuregeneratedcanbegreaterthanthetotalstressactingatthosepoints,alongwiththeforcesthatresistsliding.Initially,thefailureoccursatthetoeoftheslope,thenextendstotheinterior.Althoughourinvestigationfocusedonlyonthecontributionofhydratedecompositiontosubmarinelandslide,thisprocessisalsoaffectedbyboththeslopematerialpropertiesandtopography.

简介：Previousstudiesemphasizetheimportantroleofa'north-ridgeversussouth-trough'dipole(affectingthelatitudesfrom20°to75°NaroundtheTibetanPlateau)ofanomalousgeopotentialheight(Z)intheearly-2008abnormalcryogenicfreezing-rain-and-snoweventsinthesouthernpartofChina.ThepresentstudyintendstoextracttheleadingsignalfacilitatingthedipolebasedonthenumericaloutputsofafullZ-linearmodelfordiagnosingtheglobalZ.Usingthismodelbuiltonfullprimitiveequationsinspherical-isobariccoordinates,wecanfurthersplittheanomalyofZ-Zfζ-uβ(representingtheZcomponentnotexplicitlyassociatedwiththeCoriolisparameterfanditsmeridionalderivativeβ)into15components.Withthemodel-outputZfζ-uβ(mainlyaccountingforthedipoleunderthegeostrophicbalance)andZ-Zfζ-uβmatricesastheleftandrightsingularvectorsrespectively,amaximumcovarianceanalysis(MCA)isperformedtoextractthesignificant2-4-dayleadingsignalcarriedbytheMCAZ-Zfζ-uβmodeintheupstreamareaofthedipole.Thisleadingsignalismainlyattributedto1)theabnormallystrongwesterliescenteredaroundtheexitregionoftheAtlanticjet-streamand2)thecorrespondinganomalous950-300hPaanticyclonetothesouthoftheabnormallystrongcenterofwesterlies.Theenergyofthepositivewavecenteraroundthisjetexitregionfavorsthedownstreamnorth-ridgewhiletheenergyofthenegativewavecenterassociatedwiththeanomalousanticyclonefavorsthedownstreamsouth-trough.