DOI: 10.1002/2016GL068428
论文题名: Assessing wet snow avalanche activity using detailed physics based snowpack simulations
作者: Wever N. ; Vera Valero C. ; Fierz C.
刊名: Geophysical Research Letters
ISSN: 0094-8965
EISSN: 1944-8696
出版年: 2016
卷: 43, 期: 11 起始页码: 5732
结束页码: 5740
语种: 英语
英文关键词: snowpack modeling
; wet snow avalanches
Scopus关键词: Snow
; Activity-based
; Liquid water content
; Mean air temperatures
; Meteorological station
; Microstructural transition
; Snowpack model
; Water accumulation
; Wet snow
; Avalanches (snowslides)
英文摘要: Water accumulating on microstructural transitions inside a snowpack is often considered a prerequisite for wet snow avalanches. Recent advances in numerical snowpack modeling allow for an explicit simulation of this process. We analyze detailed snowpack simulations driven by meteorological stations in three different climate regimes (Alps, Central Andes, and Pyrenees), with accompanying wet snow avalanche activity observations. Predicting wet snow avalanche activity based on whether modeled water accumulations inside the snowpack locally exceed 5–6% volumetric liquid water content is providing a higher prediction skill than using thresholds for daily mean air temperature, or the daily sum of the positive snow energy balance. Additionally, the depth of the maximum water accumulation in the simulations showed a significant correlation with observed avalanche size. Direct output from detailed snow cover models thereby is able to provide a better regional assessment of dangerous slope aspects and potential avalanche size than traditional methods. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84973162682&doi=10.1002%2f2016GL068428&partnerID=40&md5=cee933d4ee2d466270f0fd4abec632b7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9928
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
Recommended Citation:
Wever N.,Vera Valero C.,Fierz C.. Assessing wet snow avalanche activity using detailed physics based snowpack simulations[J]. Geophysical Research Letters,2016-01-01,43(11).