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Spatial and temporal variation in river corridor exchange across a 5th-order mountain stream network

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dc.contributor.authorWard, Adam S.en
dc.contributor.authorWondzell, Steven M.en
dc.contributor.authorSchmadel, Noah M.en
dc.contributor.authorHerzog, Skuyleren
dc.contributor.authorZarnetske, Jay P.en
dc.contributor.authorBaranov, Viktoren
dc.contributor.authorBlaen, Phillip J.en
dc.contributor.authorBrekenfeld, Nicolaien
dc.contributor.authorChu, Rosalieen
dc.contributor.authorDerelle, Romainen
dc.contributor.authorDrummond, Jennifer D.en
dc.contributor.authorFleckenstein, Jan H.en
dc.contributor.authorGarayburu-Caruso, Vanessaen
dc.contributor.authorGraham, Emily B.en
dc.contributor.authorHannah, Daviden
dc.contributor.authorHarman, Ciaran J.en
dc.contributor.authorHixson, Jaseen
dc.contributor.authorKnapp, Julia L. A.en
dc.contributor.authorKrause, Stefanen
dc.contributor.authorKurz, Marie J.en
dc.contributor.authorLewandowski, Joergen
dc.contributor.authorLi, Angangen
dc.contributor.authorMarti, Eugeniaen
dc.contributor.authorMiller, Melinda C.en
dc.contributor.authorMilner, Alexander M.en
dc.contributor.authorNeil, Kerryen
dc.contributor.authorOrsini, Luisaen
dc.contributor.authorPackman, Aaron I.en
dc.contributor.authorPlont, Stephenen
dc.contributor.authorRenteria, Lupitaen
dc.contributor.authorRoche, Kevinen
dc.contributor.authorRoyer, Todden
dc.contributor.authorSegura, Catalinaen
dc.contributor.authorStegen, Jamesen
dc.contributor.authorToyoda, Jasonen
dc.contributor.authorWells, Jacquelineen
dc.contributor.authorWisnoski, Nathan I.en
dc.contributor.departmentBiological Sciencesen
dc.date.accessioned2020-02-20T15:39:29Zen
dc.date.available2020-02-20T15:39:29Zen
dc.date.issued2019-12-20en
dc.description.abstractAlthough most field and modeling studies of river corridor exchange have been conducted at scales ranging from tens to hundreds of meters, results of these studies are used to predict their ecological and hydrological influences at the scale of river networks. Further complicating prediction, exchanges are expected to vary with hydrologic forcing and the local geomorphic setting. While we desire predictive power, we lack a complete spatiotemporal relationship relating discharge to the variation in geologic setting and hydrologic forcing that is expected across a river basin. Indeed, the conceptual model of Wondzell (2011) predicts systematic variation in river corridor exchange as a function of (1) variation in baseflow over time at a fixed location, (2) variation in discharge with location in the river network, and (3) local geomorphic setting. To test this conceptual model we conducted more than 60 solute tracer studies including a synoptic campaign in the 5th-order river network of the H. J. Andrews Experimental Forest (Oregon, USA) and replicate-intime experiments in four watersheds. We interpret the data using a series of metrics describing river corridor exchange and solute transport, testing for consistent direction and magnitude of relationships relating these metrics to discharge and local geomorphic setting. We confirmed systematic decrease in river corridor exchange space through the river networks, from headwaters to the larger main stem. However, we did not find systematic variation with changes in discharge through time or with local geomorphic setting. While interpretation of our results is complicated by problems with the analytical methods, the results are sufficiently robust for us to conclude that space-for-time and time-for-space substitutions are not appropriate in our study system. Finally, we suggest two strategies that will improve the interpretability of tracer test results and help the hyporheic community develop robust datasets that will enable comparisons across multiple sites and/or discharge conditions.en
dc.description.adminPublic domain – authored by a U.S. government employeeen
dc.description.notesThis research has been supported by the Leverhulme Trust (Where rivers, groundwater and disciplines meet: a hyporheic research network), the UK Natural Environment Research Council (grant no. NE/L003872/1), the European Commission, H2020 Marie Sklodowska-Curie Actions (HiFreq (grant no. 734317)), the U.S. Department of Energy (Pacific Northwest National Lab and DE-SC0019377), the National Science Foundation (grant nos. DEB-1440409, EAR-1652293, EAR-1417603, and EAR-1446328), and the University of Birmingham (Institute of Advanced Studies).en
dc.description.sponsorshipLeverhulme Trust (Where rivers, groundwater and disciplines meet: a hyporheic research network); UK Natural Environment Research CouncilNERC Natural Environment Research Council [NE/L003872/1]; European Commission, H2020 Marie Sklodowska-Curie Actions (HiFreq) [734317]; U.S. Department of Energy (Pacific Northwest National Lab); National Science FoundationNational Science Foundation (NSF) [DEB-1440409, EAR-1652293, EAR-1417603, EAR-1446328]; University of Birmingham (Institute of Advanced Studies); U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-SC0019377]en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.5194/hess-23-5199-2019en
dc.identifier.eissn1607-7938en
dc.identifier.issn1027-5606en
dc.identifier.issue12en
dc.identifier.urihttp://hdl.handle.net/10919/96945en
dc.identifier.volume23en
dc.language.isoenen
dc.rightsCreative Commons CC0 1.0 Universal Public Domain Dedicationen
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/en
dc.titleSpatial and temporal variation in river corridor exchange across a 5th-order mountain stream networken
dc.title.serialHydrology and Earth System Sciencesen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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