000230614 001__ 230614
000230614 005__ 20181203024817.0
000230614 0247_ $$2doi$$a10.1002/hyp.11243
000230614 022__ $$a0885-6087
000230614 02470 $$2ISI$$a000406838200013
000230614 037__ $$aARTICLE
000230614 245__ $$aYoung runoff fractions control streamwater age and solute concentration dynamics
000230614 260__ $$bWiley-Blackwell$$c2017$$aHoboken
000230614 269__ $$a2017
000230614 300__ $$a5
000230614 336__ $$aJournal Articles
000230614 520__ $$aWe introduce a new representation of coupled solute and water age dynamics at the catchment scale, which shows how the contributions of young runoff waters can be directly referenced to observed water quality patterns. The methodology stems from recent trends in hydrologic transport that acknowledge the dynamic nature of streamflow age and explores the use of water age fractions as an alternative to the mean age. The approach uses a travel time-based transport model to compute the fractions of streamflow that are younger than some thresholds (e.g., younger than a few weeks) and compares them to observed solute concentration patterns. The method is here validated with data from the Hubbard Brook Experimental Forest during spring 2008, where we show that the presence of water younger than roughly 2 weeks, tracked using a hydrologic transport model and deuterium measurements, mimics the variation in dissolved silicon concentrations. Our approach suggests that an age-discharge relationship can be coupled to classic concentration-discharge relationship, to identify the links between transport timescales and solute concentration. Our results highlight that the younger streamflow components can be crucial for determining water quality variations and for characterizing the dominant hydrologic transport dynamics.
000230614 6531_ $$ahysteresis
000230614 6531_ $$asolute concentration
000230614 6531_ $$awater age
000230614 6531_ $$awater quality
000230614 6531_ $$aweathering
000230614 700__ $$0249079$$g259200$$uEcole Polytech Fed Lausanne, Lab Ecohydrol ECHO IIE ENAC, Lausanne, Switzerland$$aBenettin, Paolo
000230614 700__ $$uUS Forest Serv, Hubbard Brook Expt Forest, Northern Res Stn, North Woodstock, NH USA$$aBailey, Scott W.
000230614 700__ $$0240022$$g182281$$uEcole Polytech Fed Lausanne, Lab Ecohydrol ECHO IIE ENAC, Lausanne, Switzerland$$aRinaldo, Andrea
000230614 700__ $$uCary Inst Ecosyst Studies, Millbrook, NY USA$$aLikens, Gene E.
000230614 700__ $$aMcguire, Kevin J.
000230614 700__ $$aBotter, Gianluca$$uUniv Padua, Dipartimento ICEA, Padua, Italy
000230614 773__ $$j31$$tHydrological Processes$$k16$$q2982-2986
000230614 909C0 $$xU10273$$0252014$$pECHO
000230614 909CO $$particle$$pENAC$$ooai:infoscience.tind.io:230614
000230614 917Z8 $$x259200
000230614 937__ $$aEPFL-ARTICLE-230614
000230614 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000230614 980__ $$aARTICLE