000165029 001__ 165029
000165029 005__ 20190316235100.0
000165029 0247_ $$2doi$$a10.5194/hess-15-1227-2011
000165029 022__ $$a1027-5606
000165029 02470 $$2ISI$$a000290016400011
000165029 037__ $$aARTICLE
000165029 245__ $$aIntegrating point glacier mass balance observations into hydrologic model identification
000165029 269__ $$a2011
000165029 260__ $$bEuropean Geosciences Union$$c2011
000165029 336__ $$aJournal Articles
000165029 520__ $$aThe hydrology of high mountainous catchments is often predicted with conceptual precipitation-discharge models that simulate the snow accumulation and ablation behavior of a very complex environment using as only input temperature and precipitation. It is hereby often assumed that some glacier-wide annual balance estimates, in addition to observed discharge, are sufficient to reliably calibrate such a model. Based on observed data from Rhonegletscher (Switzerland), we show in this paper that information on the seasonal mass balance is a pre-requisite for model calibration. And we present a simple, but promising methodology to include point mass balance observations into a systematic calibration process. The application of this methodology to the Rhonegletscher catchment illustrates that even small samples of point observations do contain extractable information for model calibration. The reproduction of these observed seasonal mass balance data requires, however, a model structure modification, in particular seasonal lapse rates and a separate snow accumulation and rainfall correction factor. This paper shows that a simple conceptual model can be a valuable tool to project the behavior of a glacier catchment but only if there is enough seasonal information to constrain the parameters that directly affect the water mass balance. The presented multi-signal model identification framework and the simple method to calibrate a semi-lumped model on point observations has potential for application in other modeling contexts.
000165029 6531_ $$ahydrological modeling, glacier discharge, alpine hydrology, glacier mass balance
000165029 700__ $$0241370$$aSchaefli, Bettina$$g110841
000165029 700__ $$aHuss, Matthias
000165029 773__ $$j15$$q1227-1241$$tHydrology and Earth System Sciences
000165029 8564_ $$uhttp://www.hydrol-earth-syst-sci.net/15/1227/2011/hess-15-1227-2011.html$$zURL
000165029 8564_ $$s2517193$$uhttps://infoscience.epfl.ch/record/165029/files/schaefli_huss2011.pdf$$yn/a$$zn/a
000165029 8564_ $$s503370$$uhttps://infoscience.epfl.ch/record/165029/files/schaefli_huss2011Supp_1.pdf$$yn/a$$zn/a
000165029 8564_ $$s2791$$uhttps://infoscience.epfl.ch/record/165029/files/th_HYdrol_Earth_sys_Sci_1.jpg$$yn/a$$zn/a
000165029 909C0 $$0252014$$pECHO$$xU10273
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000165029 917Z8 $$x110841
000165029 917Z8 $$x106459
000165029 917Z8 $$x106459
000165029 917Z8 $$x128933
000165029 937__ $$aEPFL-ARTICLE-165029
000165029 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000165029 980__ $$aARTICLE