Application à la France du modèle Safran-ISBA-MODCOU

Autor: Etienne Leblois, P. Etchevers, P. Viennot, P. Le Moigne, J. Noilhan, S. Morel, Eric Martin, Fabienne Rousset-Regimbeau, J.-L. Champeaux, Aaron Boone, E. Ledoux, P. Quintana Seguí, Florence Habets, Laurent Franchistéguy
Přispěvatelé: Centre national de recherches météorologiques (CNRM), Institut national des sciences de l'Univers (INSU - CNRS)-Météo France-Centre National de la Recherche Scientifique (CNRS), Structure et fonctionnement des systèmes hydriques continentaux (SISYPHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Météo France, Hydrologie-Hydraulique (UR HHLY), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), Centre de Géosciences (GEOSCIENCES), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Groupe d'étude de l'atmosphère météorologique (CNRM-GAME), Météo-France [Paris], MINES ParisTech - École nationale supérieure des mines de Paris-PSL Research University (PSL), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Mines Paris - PSL (École nationale supérieure des mines de Paris), Météo-France, Météo France-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2008
Předmět:
Atmospheric Science
CEMAGREF
010504 meteorology & atmospheric sciences
Meteorology
[SDE.MCG]Environmental Sciences/Global Changes
ISBA
0207 environmental engineering
FRANCE
Soil Science
Aquifer
02 engineering and technology
Forcing (mathematics)
[SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology
Aquatic Science
Oceanography
Safran isba modcou validation hydrology
01 natural sciences
Altitude
Geochemistry and Petrology
Streamflow
Latent heat
Earth and Planetary Sciences (miscellaneous)
Hydrometeorology
[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces
environment
020701 environmental engineering
0105 earth and related environmental sciences
Earth-Surface Processes
Water Science and Technology
geography
geography.geographical_feature_category
Ecology
HHLY
MODCOU
Paleontology
Forestry
Snow
Water resources
Geophysics
13. Climate action
Space and Planetary Science
HHLYHYD
[SDE]Environmental Sciences
Environmental science
SAFRAN
Zdroj: Journal of Geophysical Research
Journal of Geophysical Research, American Geophysical Union, 2008, 113, pp.18. ⟨10.1029/2007JD008548,2008⟩
Journal of Geophysical Research: Atmospheres
Journal of Geophysical Research: Atmospheres, American Geophysical Union, 2008, 113 (D06113), pp.18. ⟨10.1029/2007JD008548⟩
Journal of Geophysical Research: Atmospheres, 2008, 113 (D06113), pp.18. ⟨10.1029/2007JD008548⟩
ISSN: 0148-0227
2156-2202
2169-897X
2169-8996
DOI: 10.1029/2007jd008548
Popis: [Departement_IRSTEA]RE [TR1_IRSTEA]RIE / TRANSFEAUAn edited version of this paper was published by AGU. Copyright (2008) American Geophysical Union; The hydrometeorological model SIM consists in a meterological analysis system (SAFRAN), a land surface model (ISBA) and a hydrogeological model (MODCOU). It generates atmospheric forcing at an hourly time step, and it computes water and surface energy budgets, the river ow at more than 900 rivergauging stations, and the level of several aquifers. SIM was extended over all of France in order to have a homogeneous nation-wide monitoring of the water resources: it can therefore be used to forecast flood risk and to monitor drought risk over the entire nation. The hydrometeorologival model was applied over a 10-year period from 1995 to 2005. In this paper the databases used by the SIM model are presented, then the 10-year simulation is assessed by using the observations of daily stream-flow, piezometric head, and snow depth. This assessment shows that SIM is able to reproduce the spatial and temporal variabilities of the water fluxes. The efficiency is above 0.55 (reasonable results) for 66 % of the simulated rivergages, and above 0.65 (rather good results) for 36 % of them. However, the SIM system produces worse results during the driest years, which is more likely due to the fact that only few aquifers are simulated explicitly. The annual evolution of the snow depth is well reproduced, with a square correlation coeficient around 0.9 over the large altitude range in the domain. The stream ow observations were used to estimate the overall error of the simulated latent heat ux, which was estimated to be less than 4 %.
Databáze: OpenAIRE
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