Probabilistic Description of Streamflow and Active Length Regimes in Rivers

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dc.contributor.authorDurighetto, Nicolaen
dc.contributor.authorMariotto, Veronicaen
dc.contributor.authorZanetti, Francescaen
dc.contributor.authorMcGuire, Kevin J.en
dc.contributor.authorMendicino, Giuseppeen
dc.contributor.authorSenatore, Alfonsoen
dc.contributor.authorBotter, Gianlucaen
dc.date.accessioned2022-05-05T18:00:16Zen
dc.date.available2022-05-05T18:00:16Zen
dc.date.issued2022-04-01en
dc.date.updated2022-05-05T17:37:05Zen
dc.description.abstractIn spite of the prevalence of temporary rivers over a wide range of climatic conditions, they represent a relatively understudied fraction of the global river network. Here, we exploit a well-established hydrological model and a derived distribution approach to develop a coupled probabilistic description for the dynamics of the catchment discharge and the corresponding active network length. Analytical expressions for the flow duration curve (FDC) and the stream length duration curve (SLDC) were derived and used to provide a consistent classification of streamflow and active length regimes in temporary rivers. Two distinct streamflow regimes (persistent and erratic) and three different types of active length regimes (ephemeral, perennial, and ephemeral de facto) were identified depending on the value of two dimensionless parameters. These key parameters, which are related to the underlying streamflow fluctuations and the sensitivity of active length to changes in the catchment discharge (here quantified by the scaling exponent b), originate seven different behavioral classes characterized by contrasting shapes of the underlying SLDCs and FDCs. The analytical model was tested using data gathered in three study catchments located in Italy and USA, with satisfactory model performances in most cases. Our analytical and empirical results show the existence of a structural relationship between streamflow and active length regimes, which is chiefly modulated by the scaling exponent b. The proposed framework represents a promising tool for the coupled analysis of discharge and river network length dynamics in temporary streams.en
dc.description.versionPublished versionen
dc.format.extent24 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifierARTN e2021WR031344 (Article number)en
dc.identifier.doihttps://doi.org/10.1029/2021WR031344en
dc.identifier.eissn1944-7973en
dc.identifier.issn0043-1397en
dc.identifier.issue4en
dc.identifier.urihttp://hdl.handle.net/10919/109816en
dc.identifier.volume58en
dc.language.isoenen
dc.publisherAmerican Geophysical Unionen
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000780206800001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectScience & Technologyen
dc.subjectLife Sciences & Biomedicineen
dc.subjectPhysical Sciencesen
dc.subjectEnvironmental Sciencesen
dc.subjectLimnologyen
dc.subjectWater Resourcesen
dc.subjectEnvironmental Sciences & Ecologyen
dc.subjectMarine & Freshwater Biologyen
dc.subjectstreamflow regimesen
dc.subjectactive length regimesen
dc.subjectprobabilistic descriptionen
dc.subjecttemporary streamsen
dc.subjectstream length duration curveen
dc.subjectSLDCen
dc.subjectFLOW-DURATION CURVESen
dc.subjectCATCHMENT CLASSIFICATIONen
dc.subjectREGIONAL PATTERNSen
dc.subjectPHYSICAL CONTROLSen
dc.subjectDRAINAGE DENSITYen
dc.subjectINTERMITTENTen
dc.subjectTIMEen
dc.subjectVARIABILITYen
dc.subjectDYNAMICSen
dc.subjectCHANNELSen
dc.titleProbabilistic Description of Streamflow and Active Length Regimes in Riversen
dc.title.serialWater Resources Researchen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherJournalen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Natural Resources & Environmenten
pubs.organisational-group/Virginia Tech/Natural Resources & Environment/Forest Resources and Environmental Conservationen
pubs.organisational-group/Virginia Tech/Natural Resources & Environment/Water Resources Research Centeren
pubs.organisational-group/Virginia Tech/University Research Institutesen
pubs.organisational-group/Virginia Tech/University Research Institutes/Fralin Life Sciencesen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Natural Resources & Environment/CNRE T&R Facultyen
pubs.organisational-group/Virginia Tech/University Research Institutes/Fralin Life Sciences/Durelle Scotten
pubs.organisational-group/Virginia Tech/Natural Resources & Environment/Forest Resources and Environmental Conservation/FREC WRRC facultyen

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