昆侖山葉爾羌河徑流過程模擬研究.pdf

1、新疆農(nóng)業(yè)大學(xué)碩士學(xué)位論文昆侖山葉爾羌河徑流過程模擬研究姓名：景少波申請學(xué)位級別：碩士專業(yè)：水文學(xué)及水資源指導(dǎo)教師：姜卉芳董新光201006IIStudyonRunoffSimulationtoYeerqiangRiverBasininKunlunMountainsAbstractYeerqiangRiveriginatedfromKunlunMountainsisoneofthethreemajheadstreams.Withthepr

2、ocessofecologicalrestationconstructionoftheTarimRiverfloodfecastofglacierlakebreakrunoffprocessisextremelyurgent.Asamaintoolofrunofffmationsimulationfloodfecastingwatershedhydrologicalmodelplaysanimptantroleinfloodprotec

3、tion.GlaciermeltingistheimptantpartoftherunofffmationinXinjiang.SoaddingsnowmeltmoduletowatershedmodelisnecessarywhenwatershedmodelwasappliedintheRiverofXinjiangitscalculationaccuracydirectlyaffectsrunoffsimulationaccura

4、cy.Xin’anjiangwatershedmodelcontainingsnowmeltstructurehasbeenappliedinTianshanMountainsgainsbettereffect.ComparedwithTianshanMountainsdrainagebasinheightdifferencesofKunlunMountainsbasinglaciersnowmeltwaterrationtorunof

5、farebothmuchlargerwhilethepositionofactualmetricalhydrologicalstationsislowespeciallythedistributioninfmationofairtemperaturedistributionprecipitationdistributionsoonisstilllackingwhichisanobstructiontocarryoutrunofffeca

6、stresearchtohighcoldmountains.ItestimatesprecipitationdistributionbasedontherecentresearchachievementsofprecipitationdistributioninmountainregiontheprecipitationdistributioninKunlunMountains.Inviewofairtemperatureisanimp

7、tantinputvariableinsnowmeltcalculationthetemperatureplaystheleadingroletorunoffintheriverswhichsupplementedwithmeltedsnowglacierwater.Thereferunoffsimulationaccuracydependsgreatlyontheestimationaccuracyofverticaldistribu

8、tionofairtemperature.Byvirtueofsoundingtemperaturefromtheweatherstationinthevicinityoftheresearchareastocompensatefthelackoftemperaturesdatainmountainsthreecalculationmethodsaredesignedindertoestimateverticaldistribution

9、softheairtemperatureinhighcoldmountains.ThisarticletakeYeerqiangRiverBasinastheexamplethedrainagewkswereextractedbasedonthegridDEMdata(90m90m)thenthesimulatedareaisdividedinto7beltsbyelevation.Adoptingbefementionedinfmat

10、iondataprocessingmethodutilizingtheXin’anjiangwatershedmodelcontainingsnowmeltstructuretoconductdailyrunoffsimulationachievethegoodresults.TheresultsshowthatthismodelisapplicabletoYeerqiangRiverBasinconsideringvariationa

11、lacteristicofzonaltemperatureprecipitationevapationwiththeelevationchangeisreasonablewhichaccdwithrealityofthebasin.Thecalculatedtemperaturelapseratewithsoundingairtemperaturecanreflecttheverticalvariationrulesoftheairte

12、mperatureinhighcoldareasinacertainspacerangecouldbeusedintherunoffsimulationofinlriverslackingofdata.ThisstudyhaspracticalvaluefestablishinghydrologicalfecastingsystemwaterresourceplanninginKunlunMountains.Keywds：Xin’anj