Linking water age and solute dynamics in streamflow at the Hubbard Brook Experimental Forest, NH, USA

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dc.contributor.authorBenettin, Paoloen
dc.contributor.authorBailey, Scott W.en
dc.contributor.authorCampbell, John L.en
dc.contributor.authorGreen, M. B.en
dc.contributor.authorRinaldo, Andreaen
dc.contributor.authorLikens, Gene E.en
dc.contributor.authorMcGuire, Kevin J.en
dc.contributor.authorBotter, Gianlucaen
dc.contributor.departmentForest Resources and Environmental Conservationen
dc.contributor.departmentVirginia Water Resources Research Centeren
dc.date.accessioned2017-01-12T01:19:26Zen
dc.date.available2017-01-12T01:19:26Zen
dc.date.issued2015-11-01en
dc.description.abstractWe combine experimental and modeling results from a headwater catchment at the Hubbard Brook Experimental Forest (HBEF), New Hampshire, USA, to explore the link between stream solute dynamics and water age. A theoretical framework based on water age dynamics, which represents a general basis for characterizing solute transport at the catchment scale, is here applied to conservative and weatheringderived solutes. Based on the available information about the hydrology of the site, an integrated transport model was developed and used to compute hydrochemical fluxes. The model was designed to reproduce the deuterium content of streamflow and allowed for the estimate of catchment water storage and dynamic travel time distributions (TTDs). The innovative contribution of this paper is the simulation of dissolved silicon and sodium concentration in streamflow, achieved by implementing first-order chemical kinetics based explicitly on dynamic TTD, thus upscaling local geochemical processes to catchment scale. Our results highlight the key role of water stored within the subsoil glacial material in both the short-term and long-term solute circulation. The travel time analysis provided an estimate of streamflow age distributions and their evolution in time related to catchment wetness conditions. The use of age information to reproduce a 14 year data set of silicon and sodium stream concentration shows that, at catchment scales, the dynamics of such geogenic solutes are mostly controlled by hydrologic drivers, which determine the contact times between the water and mineral interfaces. Justifications and limitations toward a general theory of reactive solute circulation at catchment scales are discussed.en
dc.description.versionPublished versionen
dc.format.extent9256 - 9272 (17) page(s)en
dc.identifier.doihttps://doi.org/10.1002/2015WR017552en
dc.identifier.issn0043-1397en
dc.identifier.issue11en
dc.identifier.orcidMcGuire, Kevin J. [0000-0001-5751-3956]en
dc.identifier.urihttp://hdl.handle.net/10919/74254en
dc.identifier.volume51en
dc.languageEnglishen
dc.publisherAmerican Geophysical Unionen
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000368420000033&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectEnvironmental Sciencesen
dc.subjectLimnologyen
dc.subjectWater Resourcesen
dc.subjectEnvironmental Sciences & Ecologyen
dc.subjectMarine & Freshwater Biologyen
dc.subjectCONCENTRATION-DISCHARGE RELATIONSHIPSen
dc.subjectTRANSIT-TIME DISTRIBUTIONSen
dc.subjectDISSOLVED SILICAen
dc.subjectHEADWATER CATCHMENTen
dc.subjectHIGH-FREQUENCYen
dc.subjectNEW-HAMPSHIREen
dc.subjectMODELING TRANSPORTen
dc.subjectTEMPORAL DYNAMICSen
dc.subjectRESIDENCE TIMEen
dc.subjectNATURAL-WATERen
dc.titleLinking water age and solute dynamics in streamflow at the Hubbard Brook Experimental Forest, NH, USAen
dc.title.serialWater Resources Researchen
dc.typeArticle - Refereeden
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Natural Resources & Environmenten
pubs.organisational-group/Virginia Tech/Natural Resources & Environment/CNRE T&R Facultyen
pubs.organisational-group/Virginia Tech/Natural Resources & Environment/Water Resources Research Centeren

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