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1、EvolutionOfDiaokouChannelLobeInYellowRiverDeltaAbstractTheYellowRiverDeltaistheseatofShengliOilfieldandDongyingCity.ThestrengthendstudyoftheevolutionoftheancientchanelandlobeinYellowRiverDeltahelpsoilfielddevelopment,industialandagriculturalproduction,andthepreventiona
2、ndcontolofgeologicaldisasters.Inthispaper,manyyearsofremotesensing,bathymetricdataandotherinformation,throughtheanalysisofthemigrationfromShenxiangouChaneltoDiaokouChanelin1964byanartificialbreak-through,abandoningtheDiaokouChanelin1976bydivertingtoQignshuigouChanel,in
3、cludetheevolutionofthepresentDiaokoulobeshoreline,chanel,tidalcreekandsubmergeddelta.ThencarryoutcomrehensivestudyoftheevolutionoftheDiaokouLobeintheYellowRiverDeltaandperfecttheknowlegdeoftheevolutionofdeltalobes.Throughremotesensingimagefalsecolorcompositeimages,inte
4、rpretationextraction28yearsintheancientriverchannel,tidalcreekandlowtideline.sincethelowtidelineisthedividinglineoftheonshoredeltaandsubaqueousdelta,weusethelowtidelineastheDiaokouLobeshorelinewhendoingstatisticalanalysis.Therewere5stagesintheDiaokouLobeevolutionduetos
5、tudyofthedistanceandareaofshorelines:thefloodseasonof1964isthestraighteningstage;1964-1976,therapiddepositingstage;1976-1987,rapidwithdrawalerosion;1987-2011,therelativelyslowretrogradationstage.Duringthefinalstage,theshorelinecouldmoveslightlybackandforthineachyear,bu
6、ttheoveralltrendisbackwarderosion.TheDiaokouchanelevolutionwasdividedintofivestagesfrom1964to1976:floodseasonin1964istheoverlandflowsGulffillingstage,thereweredifferentchannelmorphology,scatteredandvariedswale;riversconvergedin1976，inwhichthenumberofriverdecreasedandco
7、nvergedtoafewmajorsharesrelativetotheyearof1964;1966-1972,asinglestraightstage,inwhichallscatteredsmallrivercoursesandintegratetoamainchannel;1972-1976,crevassebifurcationphase,branchburstatthecurveofthemainchanelduetosedimentdeposition;abandonedriverstageinII1976,inwh
8、ichartificialdiversionsofwaterandsedimentsupplystoppedandthentidalcreekdeveloped.Accordingtothemeasuredwaterdepthdata
