渤海海峡地震海洋学特征研究

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1、seismicdataprocessingdifficulties,vulnerableweakreflectionsignalbyrandomnoise,badcontinuityofseismiceventsandweakamplitudeofreflection,thereisawavefieldseparationmethodthatissuitableforweakreflectedsignalandnoise,whichcombineswithdatasparsetransformideabytheuseofmulti-sc

2、aleandmulti-resolutioncurvelettransform.Themethodisadvantageforimprovingreflectiondatasignaltonoiseratio,anditcanappliedtoprocessandtoanalyzetheBohaiStraitwaterreflectionlayerdata.Withapplicationtomulti-domainadaptivethresholdcurevlettransformtoprocessshallowmarineseismi

3、cdata,itiseffectivesuppresswidebandrandomnoiseandimprovesignaltonoiseratioandresolutionoftheoriginaldata.Multi-domainideaovercomesthedifficultyofchoosingthresholdthatsetsfordenoising,thentherearegoodresultsinaspectofreasonableprotectingsignalandeffectivefieldseparation.B

4、yusingactualCTDdatatosynthesizeseismicreflectionsignalasawell,itcompareswithpost-stackofcorrespondingreflectionpoint.Resultsshowthatlateralresolutionofstackseismicdataisbetterthansyntheticrecord,buttheverticalresolutionisslightlylowerthanCTDsyntheticdata,post-stackdataof

5、processingisimprovedthesignaltonoiseratioandmainfrequency,bothofthemmatchwellwhateverisasawholeorasadetail.Sopost-stackdatacanbeappliedtothestudyofphysicaloceanographicphenomenaanditalsoprovidetheoreticalbasisandexampleofseismicinversionandinterpretationonshallowwaterpro

6、perties.Keywords：physicaloceanography;reflectioncoefficientcontribution;weakreflectionofwater-body;multi-domaincurvelet万方数据目录1前言...................................................11.1选题背景、目的及意义..........................................11.2课题研究的国内外现状......................

7、....................21.3研究内容与创新点..............................................82渤海海峡水体跃层的基本特征............................102.1水体跃层形成的影响因素.......................................102.1.1渤海海区地形特征.........................................102.1.2渤海海区气候特征........................

8、.................102.1.3渤海海峡水团特征.........................................102.2水体跃层形成的基本物理参量............