Evaluation of Methods for Representing Urban Terrain in Storm-Water Modeling

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dc.contributor.authorGironas, Jorge
dc.contributor.authorNiemann, Jeffrey D.
dc.contributor.authorRoesner, Larry A.
dc.contributor.authorRodriguez, Fabrice
dc.contributor.authorAndrieu, Herve
dc.date.accessioned2024-01-10T12:05:19Z
dc.date.available2024-01-10T12:05:19Z
dc.date.issued2010
dc.description.abstractMany storm-water modeling problems consider watersheds comprised of complex flow networks including surfaces, streets, pipes, and channels. Ideally, hydrologic methods would be used to model the accumulation of runoff on surfaces while hydraulic methods would be used to explicitly model the flow in each street, pipe, and channel. In many practical circumstances, only the largest pipes and channels are explicitly modeled with hydraulic methods. Thus, most subcatchments include numerous streets and small pipes that can affect the accumulation and movement of flow. Digital elevation models (DEMs) are widely used to determine geometric characteristics of these subcatchments, but street gutters and pipes are not resolved in such data. To overcome this problem, known streets and pipes are often "burned" into the surface by reducing the local elevations by a specified amount before calculating flow paths and the associated subcatchment characteristics. In this paper, existing and proposed methods for including these conduits into DEM surfaces are evaluated. The results suggest that the derived characteristics are sensitive to the selected method. We also find that a new method, which makes use of known pipe elevations, is most successful at reproducing realistic flow paths. Finally, we find that errors in the implied watershed characteristics are difficult to overcome by calibration of other model parameters.
dc.description.funderHarold H. Short
dc.fechaingreso.objetodigital2024-04-25
dc.format.extent14 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1061/(ASCE)HE.1943-5584.0000142
dc.identifier.issn1084-0699
dc.identifier.urihttps://doi.org/10.1061/(ASCE)HE.1943-5584.0000142
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/75988
dc.identifier.wosidWOS:000273037500001
dc.information.autorucIngeniería;Gironas J;S/I;1681
dc.issue.numero1
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final14
dc.pagina.inicio1
dc.publisherASCE-AMER SOC CIVIL ENGINEERS
dc.revistaJOURNAL OF HYDROLOGIC ENGINEERING
dc.rightsacceso restringido
dc.subjectSENSITIVITY-ANALYSIS
dc.subjectDISTRIBUTED MODEL
dc.subjectUNIT HYDROGRAPHS
dc.subjectCATCHMENTS
dc.subjectGIS
dc.subjectRUNOFF
dc.subjectAREAS
dc.subjectDRAINAGE
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.ods06 Clean Water and Sanitation
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.subject.odspa06 Agua limpia y saneamiento
dc.titleEvaluation of Methods for Representing Urban Terrain in Storm-Water Modeling
dc.typeartículo
dc.volumen15
sipa.codpersvinculados1681
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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