气候变化领域集成服务门户(CCPortal): Snowpack modelling in the Pyrenees driven by kilometric-resolution meteorological forecasts

CCPortal

DOI	10.5194/tc-10-1571-2016
	Snowpack modelling in the Pyrenees driven by kilometric-resolution meteorological forecasts
	Quéno L.; Vionnet V.; Dombrowski-Etchevers I.; Lafaysse M.; Dumont M.; Karbou F.
发表日期	2016
ISSN	19940416
卷号	10 期号:4
英文摘要	Distributed snowpack simulations in the French and Spanish Pyrenees are carried out using the detailed snowpack model Crocus driven by the numerical weather prediction system AROME at 2.5 km grid spacing, during four consecutive winters from 2010 to 2014. The aim of this study is to assess the benefits of a kilometric-resolution atmospheric forcing to a snowpack model for describing the spatial variability of the seasonal snow cover over a mountain range. The evaluation is performed by comparisons to ground-based measurements of the snow depth, the snow water equivalent and precipitations, to satellite snow cover images and to snowpack simulations driven by the SAFRAN analysis system. Snow depths simulated by AROME-Crocus exhibit an overall positive bias, particularly marked over the first summits near the Atlantic Ocean. The simulation of mesoscale orographic effects by AROME gives a realistic regional snowpack variability, unlike SAFRAN-Crocus. The categorical study of daily snow depth variations gives a differentiated perspective of accumulation and ablation processes. Both models underestimate strong snow accumulations and strong snow depth decreases, which is mainly due to the non-simulated wind-induced erosion, the underestimation of strong melting and an insufficient settling after snowfalls. The problematic assimilation of precipitation gauge measurements is also emphasized, which raises the issue of a need for a dedicated analysis to complement the benefits of AROME kilometric resolution and dynamical behaviour in mountainous terrain. © 2016 Author(s).
学科领域	ablation; atmospheric forcing; climate modeling; melting; meteorology; mountain region; resolution; seasonal variation; snow accumulation; snow cover; snow water equivalent; snowpack; software; weather forecasting; Atlantic Ocean; France; Pyrenees; Spain; Crocus
语种	英语
scopus关键词	ablation; atmospheric forcing; climate modeling; melting; meteorology; mountain region; resolution; seasonal variation; snow accumulation; snow cover; snow water equivalent; snowpack; software; weather forecasting; Atlantic Ocean; France; Pyrenees; Spain; Crocus
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119613
作者单位	France/CNRS, CNRM, UMR3589, St. Martin d'Hères, France; Méteó France/CNRS, CNRM, UMR3589, Toulouse, France
推荐引用方式 GB/T 7714	Quéno L.,Vionnet V.,Dombrowski-Etchevers I.,et al. Snowpack modelling in the Pyrenees driven by kilometric-resolution meteorological forecasts[J],2016,10(4).
APA	Quéno L.,Vionnet V.,Dombrowski-Etchevers I.,Lafaysse M.,Dumont M.,&Karbou F..(2016).Snowpack modelling in the Pyrenees driven by kilometric-resolution meteorological forecasts.Cryosphere,10(4).
MLA	Quéno L.,et al."Snowpack modelling in the Pyrenees driven by kilometric-resolution meteorological forecasts".Cryosphere 10.4(2016).