寒区流域分布式水资源模拟模型研究及应用

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1、河海大学硕士学位论文寒区流域分布式水资源模拟模型研究及应用姓名：李舟申请学位级别：硕士专业：水文学及水资源指导教师：董增川20080301AbstractWaterl'龉ourcesthatisoneofthekeyfactorsconcerningthesocioeconomicdevelopmentinNorthwestChina．Withtheglobalwanningtrend．Thevarianceofmountainousrunoffimposesthedirectanddecisiveimpactont

2、hedownstreamzonesocioeconomicdevelopmentandecologicalenvironmentshield．Therefore,researchonthemechanismofinlandriverbasinsnowandicewaterresourcesandhydrologicalcycleandfuturetrendofmountainousrunofftowardshieldavailSOUrC沱ofwaterresourcesandonthemarchtailwaterre

3、sourceoptimizationdeploywithmomentousoperationareofgreatsignificance．ThepaperpresentwithCrallsIlprovinceShiyangheRiverbasinasthestudybackdrop，stadiestwospecialtopic-coldzonedistributedwaterrcso啪systemsimulationandthevarianceofwaterresourcesfutureSCellarioanalys

4、isaswell．n硷precipitationlevelandverticaldistributioncharacteristicinNorthwesthi【ghcoldmountainousa嘲isintroduced．Consideringthehighcorrelationbetweenthemountainousa嫩precipitationitselevation,themethodofPRISM(Parameter=elevationRegressionsonIndependentSlopesModel

5、)forspatialgridinterpolationbasedongeographyspacecharacteristicandregressionstatisticsisappliedforstudyingtheprecipitationproceedinungaugedregions．Onthebasisofanalyseonthestudyregion,districtsystemgeneralizationiscarriedout,andtheinscapeofcoldregionhydrological

6、cyclesystemisdeterminedandwimtheGIStechnologydistributedhydrologicmodelwiththe翻IIOWmeltmechanism鲥dincompacts扛uctIlretypeisthenestablishedthroughtheDigitElevationModel(DEM)extractwatershedproperties．TheterraindifferenceOVerthegroundsurfacecoldheaterredistributea

7、swellasthesnowmeltoutflowratewiththesnowmeltrunoffmodelbasedon鲥daS[鼎2testimationisdiscussedwithinthemodel．ThenthismodelissuccessfullyintegratedwiththeDistributedXAJrunoffproduceandconfluencemodel．TherebytheintegritysystematiccoldregionbaSinwatercirculationsyste

8、misconstructed．Themodelisthanappliedintothecoldregion,ShiyangheRiver、upstreamAbstractproceedwaterresourcessimulationasthecasestudy．Theresultprovesthatthemodelstructureisreas