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dc.date.accessioned2020-12-23T06:12:16Z
dc.date.available2020-12-23T06:12:16Z
dc.date.issued2020-04-29
dc.identifierdoi:10.17170/kobra-202012232905
dc.identifier.urihttp://hdl.handle.net/123456789/12363
dc.description.sponsorshipGefördert durch den Publikationsfonds der Universität Kasselger
dc.language.isoengeng
dc.rightsNamensnennung-Nicht-kommerziell 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjecthydrodynamic modelingeng
dc.subjectAEM3Deng
dc.subjectthree-dimensional modeleng
dc.subjectreservoir morphologyeng
dc.subjectbackground potential energyeng
dc.subjectstratificationeng
dc.subjectmixingeng
dc.subject.ddc550
dc.titleEffects of morphology in controlling propagation of density currents in a reservoir using uncalibrated three-dimensional hydrodynamic modelingeng
dc.typeAufsatz
dcterms.abstractIn this study, effects of basin morphology are shown to affect density current hydrodynamics of a large reservoir using a three-dimensional (3D) hydrodynamic model that is validated (but not calibrated) with in situ observational data. The AEM3D hydrodynamic model was applied for 5-month simulations during winter and spring flooding for the Maroon reservoir in southwest Iran, where available observations indicated that large-scale density currents had previously occurred. The model results were validated with near-bottom water temperature measurements that were previously collected at five locations in the reservoir. The Maroon reservoir consists of upper and lower basins that are connected by a deep and narrow canyon. Analyses of simulations show that the canyon strongly affects density current propagation and the resulting differing limnological characteristics of the two basins. The evolution of the Wedderburn Number, Lake Number, and Schmidt stability number are shown to be different in the two basins, and the difference is attributable to the morphological separation by the canyon. Investigation of the background potential energy (BPE) changes along the length of the canyon indicated that a density front passes through the upper section of the canyon but is smoothed into simple filling of the lower basin. The separable dynamics of the basins has implications for the complexity of models needed for representing both water quality and sedimentation.eng
dcterms.accessRightsopen access
dcterms.alternativeEffects of morphology in propagation of density currentseng
dcterms.creatorZamani, Behnam
dcterms.creatorKoch, Manfred
dcterms.creatorHodges, Ben R.
dc.relation.doidoi:10.4081/jlimnol.2020.1942
dc.subject.swdHydrodynamikger
dc.subject.swdModellierungger
dc.subject.swdDreidimensionales Modellger
dc.subject.swdStauseeger
dc.subject.swdMorphologie <Biologie>ger
dc.subject.swdSchichtung <Hydrologie>ger
dc.subject.swdMischenger
dc.type.versionpublishedVersion
dcterms.source.identifierEISSN 1723-8633
dcterms.source.issueNo. 3
dcterms.source.journalJournal of Limnologyeng
dcterms.source.pageinfo238-253
dcterms.source.volumeVolume 79
kup.iskupfalse


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