000205141 001__ 205141
000205141 005__ 20190317000110.0
000205141 0247_ $$2doi$$a10.1002/2014WR016228
000205141 022__ $$a0043-1397
000205141 02470 $$2ISI$$a000353158800017
000205141 037__ $$aARTICLE
000205141 245__ $$aThermodynamics in the hydrologic response: Travel time formulation and application to Alpine catchments
000205141 269__ $$a2015
000205141 260__ $$bAmerican Geophysical Union$$c2015$$aWashington
000205141 300__ $$a17
000205141 336__ $$aJournal Articles
000205141 520__ $$aThis paper presents a spatially-explicit model for hydro-thermal response simulations of Alpine catchments, accounting for advective and non-advective energy fluxes in stream networks characterized by arbitrary degrees of geomorphological complexity. The relevance of the work stems from the increasing scientific interest concerning the impacts of the warming climate on water resources management and temperature-controlled ecological processes. The description of the advective energy uxes is cast in a travel time formulation of water and energy transport, resulting in a closed form solution for water temperature evolution in the soil compartment. The application to Alpine catchments hinges on the boundary conditions provided by the fully-distributed and physically-based snow model Alpine3D. The performance of the simulations is illustrated by comparing modeled and measured hydrographs and thermographs at the outlet of the Dischma catchment (45 km2) in the Swiss Alps. The Monte Carlo calibration shows that the model is robust and that a simultaneous fitting of stream ow and stream temperature reduces the uncertainty in the hydrological parameters estimation. The calibrated model also provides a good fit to the measurements in the validation period, suggesting that it could be employed for predictive applications, both for hydrological and ecological purposes. The temperature of the subsurface flow, as described by the proposed travel time formulation, proves warmer than the stream temperature during winter and colder during summer. Finally, the spatially-explicit results of the model during snowmelt show a notable hydro-thermal spatial variability in the river network, owing to the small spatial correlation of infilltration and meteorological forcings in Alpine regions.
000205141 6531_ $$aTravel time distribution
000205141 6531_ $$aStreamflow
000205141 6531_ $$aStream temperature
000205141 6531_ $$aAlpine catchments
000205141 6531_ $$aHydrology
000205141 6531_ $$awater temperature
000205141 700__ $$0247006$$g227336$$aComola, Francesco
000205141 700__ $$0241370$$g110841$$aSchaefli, Bettina
000205141 700__ $$g182281$$aRinaldo, Andrea$$0240022
000205141 700__ $$aLehning, Michael$$g167659$$0245914
000205141 773__ $$j51$$tWater Resources Research
000205141 8564_ $$uhttps://infoscience.epfl.ch/record/205141/files/comola2015thermodynamics.pdf$$zPublisher's version$$s2401719$$yPublisher's version
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000205141 937__ $$aEPFL-ARTICLE-205141
000205141 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000205141 980__ $$aARTICLE