简介：

简介：Aneffectivestrategyandframeworkthatadequatelyintegratetheautomatedandmanualprocessesforfastcartographicsoundingselectionispresented.Theimportantsubmarinetopographicfeaturesareextractedforimportantsoundingsselection,andanimproved"influencecircle"algorithmisintroducedforsoundingselection.Forautomaticconfigurationofsoundingsdistributionpattern,aspecialalgorithmconsideringmulti-factorsisemployed.Asemi-automaticmethodforsolvingtheambiguousconflictsisdescribed.OnthebasisofthealgorithmsandstrategiesasystemnamedHGISforfastcartographicsoundingselectionisdevelopedandappliedinChineseMarineSafetyAdministrationBureau(CMSAB).Theapplicationexperimentsshowthatthesystemiseffectiveandreliable.Atlastsomeconclusionsandthefutureworkaregiven.

简介：Inthispaper,weproposeasimplifiedspatialchannelsoundingmethodbyutilizingbistaticsyntheticapertureradar(BiSAR)principles.DespitethedifferentdeploymentgeometriescomparedwithaconventionalBiSARsystem,thefeasibilityoftheapproachisestablishedby1)theproposedmethodachievesabetterspatialresolutionthanconventionaldirectionalchannelsoundersand2)reconstructionalgorithmsbasedontime-domainbackprojectioninconjunctionwithadigitalelevationmodelprovideagoodimagingperformanceandaresuitableforreconstructingthespatialdistributionofscatterers.Simulationsofahigh-speedrail(HSR)scenariodemonstratethattheestimatedpowerdelayprofiles(PDPs)andpowerangleprofiles(PAPs)areclosetotheactualvalues.

简介：Theskyradianceanddegreeofpolarizationwithmultiplescatteringprocessconsideredwerecalculatedinthispaperbysolvingvectorformradiativetransferequationiteratively.Numericalexperimentforsimultaneouslyretrivingthesizedistribution(SD)andthecomplexrefractiveindex(CRI)ofaerosolparticlewasconductedwiththedegreeofpolarizationofskylight(DPS)andthelibrarymethodused.ItisshownfromtheresultsthattherealpartofCRIisalwayssensitivetoDPS.ButsituationissomewhatcomplicatedfortheimaginarypartofCRI.Therefore,itisexpectedthattherealpartofCRIcanberetrievedfromDPSanditsimaginarypartshouldberetrievedastheparticleislargeinsize.Inthispaper,sevensetsofDPSmeasurementson6January,1990inBeijingweregivenandtheopticalcharacteristicsofaerosolwereretrieved.

简介：高周波的电磁的发出声音作为地来源是用自然的高周波的电磁的地的一个电磁的探索方法。它比直接当前的方法有更高的分辨率和更大的深度穿入并且为地热的精力探索是特别合适的并且低--并且中间水平的地下水察觉。我们介绍为评估地热的水资源的高周波的电磁的发出声音的成功的应用。高频率电磁的系统(有到1Hz的从10KHz的一个频率范围的MT-U5A)首先被使用从中国取样域数据。一个遥远的参考车站被用来保证取样的数据质量。我们然后执行2D倒置图象与电的方法数据处理。结果基本上显示地下的地热的水的空间分发并且提供有利线索给在这个区域发现表面下的地热的水的来源。

简介：在这研究，我们导出温度，潮湿，和臭氧的大气的侧面，与表面放射率，皮肤温度，和表面压力一起，从在晴朗天空下面的红外线声音的发光(无云)状况。云客观地被检测用大气红外线在从在高水平的分辨率下面的中等分辨率成像分光辐射函数的相对低的空间分辨率和云面具信息下面更健全；这察觉用空格matching.Newton的非线性的物理反复的解决方案技术被进行被用于放射的转移方程(RTE)同时检索温度侧面，相对湿度侧面，和表面变量。这种技术被为温度和水蒸汽混合比率的weighting功能把特徵向量回归检索的结果用作背景侧面并且用相应反复的形式执行。反复的形式被把变化原则用于RTE获得。我们也比较了与观察的不同类型获得的检索。结果证明检索大气的发出声音的侧面由精确性和分辨率在另外的观察上有大优势。检索侧面能被用来改进数字模型的起始的条件并且在常规观察是稀少的区域使用了，例如高原，沙漠，和海。

简介：以便在缺乏合适的priori信息的情况中更可靠地并且有效地解释垂直电的发出声音数据，二个反的计划被建议转换由使用粒子的联合抵抗力和导致的极化数据聚集优化技术。基于导致的极化的计算公式，为chargeability/polarizability数据的倒置能被转变成转换相等的抵抗力数据。然后，为联合数据的倒置能被分解成二个过程：转换抵抗力数据和转换相等的抵抗力数据。一个顺序的倒置计划被介绍顺序运用二个过程。对比到顺序的计划，同时的被建议转换抵抗力和导致的极化数据同时。两个都，顺序、同时的计划为更多的探索目的经由中心进步的粒子群优化算法被执行。数字实验证明两个都，设计倒置算法能转换抵抗力和导致的极化数据成功地与快集中和高精确性，甚至表现在一个大搜索空格。反的结果比得上从概括线性方法的结果。作为一个近似重要性刺绣花样，粒子群优化基于算法能方便地提供以后的分析。我们采用转换模型参数的以后的概率分布评估倒置的表演和无常。以后的分析和测试的进一步的地数据证明建议倒置算法执行等价区域的好采样并且保证全球最佳能在高概率区域定位。

简介：ThispaperpresentsapreliminaryresultontheretrievalofatmosphericozoneprofilesusinganimprovedregressiontechniqueandutilizingthedatafromtheAtmosphericInfraRedSounder(AIRS),ahyper-spectralinstrumentexpectedtobeflownontheEOS-AQUAplatformin2002.SimulatedAIRSspectrawereusedtostudythesensitivityofAIRSradianceonthetroposphericandstratosphericozonechanges,andtostudytheimpactofvariouschannelcombinationsontheozoneprofileretrieval.SensitivitystudyresultsindicatethattheAIRShighresolutionspectralchannelsbetweenthewavenumber650-800cm-1provideveryusefulinformationtoaccuratelyretrievetroposphericandstratosphericozoneprofiles.EigenvectordecompositionofAIRSspectraindicatethatnomorethan100eigenvectorsareneededtoretrieveveryaccurateozoneprofiles.TheaccuracyoftheretrievedatmosphericozoneprofilefromthepresenttechniqueandutilizingtheAIRSdatawascomparedwiththeaccuracyobtainedfromcurrentAdvancedTIROSOperationalVerticalSounder(ATOVS)dataaboardNationalOceanicandAtmosphericAdministration(NOAA)satellites.Asexpected,acomparisonofretrievalresultsconfirmsthattheozoneprofileretrievedwiththeAIRSdataissuperiortothatofATOVS.

简介：ThePearlRiverEstuaryarea,locatedinthemiddlepartofthesouthernChinacoastalseismicbelt,haslongbeenconsideredapotentialsourceofstrongearthquakesabovemagnitude7.0.Toscientificallyassessthepotentialstrongearthquakeriskinthisarea,athree-dimensionalartificialseismicsoundingexperiment,consistingofareceivingarrayandseabedseismograph,wasperformedtorevealthedeepcrustalstructureinthisregion.Weusedartificialship-borneair-gunexcitationshotsassources,andfixedandmobilestationsasreceiverstorecordseismicdatafromMaytoAugust2015.ThispaperpresentsresultsalongalinefromthewesternsideofthePearlRiverEstuarytothewesternsideoftheBaijing-Gaoming-Jinwanprofile.Atwo-dimensionalvelocitystructurewasconstructedusingseismictravel-timetomography.TheinversionresultsshowthattheMohodepthis27kminthecoastalareaand30kminthenorthwestofthePearlRiverEstuaryarea,indicatingthatthecrustthinsfromlandtosea.Twostructuraldiscontinuitiesandmultiplelow-velocityanomaliesappearinthecrustalsection.Insidebothdiscontinuityzones,alow-velocitylayer,withaminimumvelocityof6.05kms?1,existsatadepthofabout15km,andanother,withaminimumvelocityof6.37kms?1,existsatadepthofabout21.5kmbetweenthemiddleandlowercrust.Theselowvelocitiessuggestthatthediscontinuitiesmayconsistofpartlymoltenmaterial.Earthquakeswithmagnitudeshigherthan5.0occurredinthelow-velocitylayeralongtheprofile.ThedeepKaiping-Enpingfault,rootedinthecrust,maybeoneofthemostimportantchannelsfordeepmaterialupwellingandisrelatedtotectonicmovementsincetheCretaceousinthePearlRiverDeltatectonicriftbasin.

简介：TheDeepSeismicSounding(DSS)projectscarriedoutfromthe1970sinthelowerYangtzeregionanditsneighboringareawerereviewedinthispaper,thenthebasicwavegroupfeaturesofthosewideanglereflection/refractionrecordsections,andofthecrustalstructurearesummarized.Itshowsthattherewereintotalfiveclearwavegroupsontherecordsections,whichincludethefirstarrivalPg,thereflectionP1fromthebottominterfaceoftheuppercrust,thereflectionP3fromthebottominterfaceofthemiddlecrust,thestrongreflectionPmfromtheMohoboundary,andtherefractionPnfromuppermostmantle.Ingeneral,thesephasesareeasilyconsistentlytracedandcompared,despitesomefirstarrivalsbeingdelayedorarrivingearlierthannormalduetotheshallowsedimentarycoverorbedrocks.Inparticular,intheDabieMountainregiontheseismiceventsofafewgatheredshotsalwayshaveweakreflectionenergy,aretwisted,orexhibitdisorganizedwaveforms,whichcouldbeattributedtothedisruptionvariationsofreflectiondepth,thebrokenMoho,andthediscontinuityofthereflectionboundarywithincrust.Theregionalcrustalstructuresarecomposedoftheupper,middleandlowercrust,ofwhichthemiddleandlowerlayerscanbedividedintotwoweakreflectionones.ThecrustalthicknessoftheNorthChinaandYangtzeplatformare30km-36km,andtheMohoexhibitsaflatgeometrydespitesomelocaluplifts.Theaveragepressurevelocityinlowercrustbeneaththistwotectonicareais6.7±0.3km/s.Nevertheless,beneaththeDabieshanareathecrustalthicknessis32km-41km,theMohobendsdownsharplyandtakesanabrupt4km-7kmdislocationintheverticaldirection.TheaveragepressurevelocityinthelowercrustbeneaththeDabieshanareais6.8±0.2km/s.