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Validation of the energy budget of an alpine snowpack simulated by several snow models (SnowMIP project)
Título : Validation of the energy budget of an alpine snowpack simulated by several snow models (SnowMIP project)
Autor : Etchevers, PierreMartin, EricBrown, RossFierz, CharlesLejeune, YvesBazile, EricBoone, AaronDai, Yong-JiuEssery, RichardFernández Matía, Alberto ORCID RESEARCHERID Gusev, YeugeniyJordan, RachelKoren, VictorKowalczyk, EvaNasonova, OlgaPyles, DavidSchlosser, AdamShmakin, Andrey B.Smirnova, Tatiana G.Strasser, UlrichVerseghy, DianaYamazaki, TakeshiYang, Zong-Liang
Palabras clave : Snow models; Snow-cover stratigraphy; Snow Model Intercomparison Project; Albedo parameterizations; Energy budget
Fecha de publicación : 2004
Editor: Cambridge University Press
Citación : Annals of Glaciology. 2004, 38(1), p. 150-158
Versión del editor: http://dx.doi.org/10.3189/172756404781814825
Resumen : Many snow models have been developed for various applications such as hydrology, global atmospheric circulation models and avalanche forecasting. The degree of complexity of these models is highly variable, ranging from simple index methods to multi-layer models that simulate snow-cover stratigraphy and texture. In the framework of the SnowModel Intercomparison Project (SnowMIP), 23 modelswere compared using observedmeteorological parameters fromtwo mountainous alpine sites.The analysis here focuses on validation of snow energy-budget simulations. Albedo and snow surface temperature observations allow identification of the more realistic simulations and quantification of errors for two components of the energy budget: the net short- and longwave radiation. In particular, the different albedo parameterizations are evaluated for different snowpack states (in winter and spring). Analysis of results during the melting period allows an investigation of the different ways of partitioning the energy fluxes and reveals the complex feedbacks which occur when simulating the snow energy budget. Particular attention is paid to the impact of model complexity on the energy-budget components. The model complexity has a major role for the net longwave radiation calculation, whereas the albedo parameterization is the most significant factor explaining the accuracy of the net shortwave radiation simulation.
URI : http://hdl.handle.net/20.500.11765/6315
ISSN : 0260-3055
Colecciones: Artículos científicos 2000-2004

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