| DOI: | 10.5194/tc-10-1571-2016
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| Scopus记录号: | 2-s2.0-84979519935
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| 论文题名: | Snowpack modelling in the Pyrenees driven by kilometric-resolution meteorological forecasts |
| 作者: | Quéno L; , Vionnet V; , Dombrowski-Etchevers I; , Lafaysse M; , Dumont M; , Karbou F
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| 刊名: | Cryosphere
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| ISSN: | 19940416
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| 出版年: | 2016
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| 卷: | 10, 期:4 | | 起始页码: | 1571
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| 结束页码: | 1589
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| 语种: | 英语
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| 英文关键词: | 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
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| 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). |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/75109
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| Appears in Collections: | 影响、适应和脆弱性
气候变化与战略
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作者单位: | France/CNRS, CNRM, UMR3589, St. Martin d'Hères, France; Méteó France/CNRS, CNRM, UMR3589, Toulouse, France
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| Recommended Citation: | |
Quéno L,, Vionnet V,, Dombrowski-Etchevers I,et al. Snowpack modelling in the Pyrenees driven by kilometric-resolution meteorological forecasts[J]. Cryosphere,2016-01-01,10(4)
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