22692.祁連山擺浪河小冰期和末次冰盛期冰量變化探討

1、中國科學院研究生院碩士學位論文祁連山擺浪河小冰期和末次冰盛期冰量變化探討姓名：吳家章申請學位級別：碩士專業(yè)：自然地理學指導教師：易朝路201205ABSTRACTTENTATIVESTUDYOFTHEICEVOLUMEVIRATIONSDURINGTHELIAANDLGMINTHEBAILANGHERVERVALLEY，THEQILIANMOUNTAINSAbstract、vUJiazhang(PhysicalGeography)Dir

2、ectedbyYIChaoluGlaciers14and16lieintheupperreachoftheBailangheRivervalleyinthemiddleofQilianshanThe10BenuclideexposuredatingshowsthattwosetsofmoraineinthevalleywereproducedintheLastGlaciationMaximum(LGM)andLiRleIceAge(LI

3、A)stage，respectivelyWeinvestigatedmorainesinthevalleyinfieldandmeasuredtheirmorphologyintheDGPSUsingthedigitalelevationmodel(DEM)ofthesurfaceofGlacier12inLaohugouinMountDaxueshan，westernQilianshan，weestablishedquadratice

4、quationsofglaciersurfaceandthenappliedthemtosimulatetheglaciersurfaceofGlacier14and16inBailangheRivervalleyUsingtheMatLabforanalysis，wereconstructedthechangesoftheiceareaandvolumeintheLGMandLL～Primaryresultsandconclusion

5、sareasfollowThechangesinglacierareaandvolumeforGlacier16weregreaterthanthoseofGlacier14duetobiggerslopeandmoredebriscoverageoniceintheformerthanthelatterThechangeratesofglacierareaandvolumeintheLGMweregreaterthanthoseint

6、heLL～TheyweregreaterintheBailangheRivervalleythanthoseintheShuleheRivervalleyinwesternQilianshan，whichwerereportedbyotherresearchers，duetothedecreaseofprecipitationandtemperaturefromeasttowestTheicevolumedecreasedbyO38km