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Predictors of urban variable source area: a cross-sectional analysis of urbanized catchments in the United States

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dc.contributor.authorLim, Theodore C.en
dc.date.accessioned2021-12-16T18:27:25Zen
dc.date.available2021-12-16T18:27:25Zen
dc.date.issued2016-12-15en
dc.date.updated2021-12-16T18:27:22Zen
dc.description.abstractMany studies have empirically confirmed the relationship between urbanization and changes to the hydrologic cycle and degraded aquatic habitats. While much of the literature focuses on extent and configuration of impervious area as a causal determinant of degradation, in this article, I do not attribute causes of decreased watershed storage on impervious area a priori. Rather, adapting the concept of variable source area (VSA) and its relationship to incremental storage to the particular conditions of urbanized catchments, I develop a statistically robust linear regression-based methodology to detect evidence of VSA-dominant response. Using the physical and meteorological characteristics of the catchments as explanatory variables, I then use logistic regression to statistically analyze significant predictors of the VSA classification. I find that the strongest predictor of VSA-type response is the percent of undeveloped area in the catchment. Characteristics of developed areas, including total impervious area, percent-developed open space and the type of drainage infrastructure, do not add to the explanatory power of undeveloped land in predicting VSA-type response. Within only developed areas, I find that total impervious area and percent-developed open space both decrease the odds of a catchment exhibiting evidence of VSA-type response and the effect of developed open space is more similar to that of total impervious area than undeveloped land in predicting VSA response. Different types of stormwater management infrastructure, including combined sewer systems and infiltration, retention and detention infrastructure are not found to have strong statistically significant effects on probability of VSA-type response. VSA-type response is also found to be stronger during the growing season than the dormant season. These findings are consistent across a national cross-section of urbanized watersheds, a higher resolution dataset of Baltimore Metropolitan Area watersheds and a subsample of watersheds confirmed not to be served by (combined sewer systems).en
dc.description.versionAccepted versionen
dc.format.extentPages 4799-4814en
dc.format.extent16 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1002/hyp.10943en
dc.identifier.eissn1099-1085en
dc.identifier.issn0885-6087en
dc.identifier.issue25en
dc.identifier.orcidLim, Theodore [0000-0002-7896-4964]en
dc.identifier.urihttp://hdl.handle.net/10919/107083en
dc.identifier.volume30en
dc.language.isoenen
dc.publisherWileyen
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000393030500009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectPhysical Sciencesen
dc.subjectWater Resourcesen
dc.subjectrainfall-runoff ratioen
dc.subjectvariable source area (VSA)en
dc.subjecteffective impervious area (EIA)en
dc.subjecturbanized watershedsen
dc.subjectregression analysisen
dc.subjectRUNOFF GENERATION PROCESSESen
dc.subjectEFFECTIVE IMPERVIOUS AREAen
dc.subjectHYDROLOGIC RESPONSEen
dc.subjectSTORMWATER MANAGEMENTen
dc.subjectRIPARIAN ZONESen
dc.subjectIMPACTen
dc.subjectCONNECTIVITYen
dc.subjectSURFACEen
dc.subjectWATERSHEDSen
dc.subjectRECHARGEen
dc.subjectEnvironmental Engineeringen
dc.subject0406 Physical Geography and Environmental Geoscienceen
dc.subject0905 Civil Engineeringen
dc.subject0907 Environmental Engineeringen
dc.titlePredictors of urban variable source area: a cross-sectional analysis of urbanized catchments in the United Statesen
dc.title.serialHydrological Processesen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherJournalen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Architecture and Urban Studiesen
pubs.organisational-group/Virginia Tech/Architecture and Urban Studies/School of Public and International Affairsen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Architecture and Urban Studies/CAUS T&R Facultyen

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