气候变化领域集成服务门户(CCPortal): Tomography-based monitoring of isothermal snow metamorphism under advective conditions

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DOI	10.5194/tc-9-1363-2015
	Tomography-based monitoring of isothermal snow metamorphism under advective conditions
	Ebner P.P.; Schneebeli M.; Steinfeld A.
发表日期	2015
ISSN	19940416
卷号	9 期号:4
英文摘要	Time-lapse X-ray microtomography was used to investigate the structural dynamics of isothermal snow metamorphism exposed to an advective airflow. The effect of diffusion and advection across the snow pores on the snow microstructure were analysed in controlled laboratory experiments and possible effects on natural snowpacks discussed. The 3-D digital geometry obtained by tomographic scans was used in direct pore-level numerical simulations to determine the effective permeability. The results showed that isothermal advection with saturated air have no influence on the coarsening rate that is typical for isothermal snow metamorphism. Isothermal snow metamorphism is driven by sublimation deposition caused by the Kelvin effect and is the limiting factor independently of the transport regime in the pores. © Author(s) 2015.
学科领域	advection; airflow; geometry; isotherm; monitoring; numerical model; permeability; snow cover; snowpack; three-dimensional modeling; tomography
语种	英语
scopus关键词	advection; airflow; geometry; isotherm; monitoring; numerical model; permeability; snow cover; snowpack; three-dimensional modeling; tomography
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/119852
作者单位	Department of Mechanical and Process Engineering, ETH Zurich, Zurich, 8092, Switzerland; WSL Institute for Snow and Avalanche Research SLF, Davos-Dorf, 7260, Switzerland
推荐引用方式 GB/T 7714	Ebner P.P.,Schneebeli M.,Steinfeld A.. Tomography-based monitoring of isothermal snow metamorphism under advective conditions[J],2015,9(4).
APA	Ebner P.P.,Schneebeli M.,&Steinfeld A..(2015).Tomography-based monitoring of isothermal snow metamorphism under advective conditions.Cryosphere,9(4).
MLA	Ebner P.P.,et al."Tomography-based monitoring of isothermal snow metamorphism under advective conditions".Cryosphere 9.4(2015).