气候变化领域集成服务门户(CCPortal): Brief communication: Growth and decay of an ice stupa in alpine conditions - a simple model driven by energy-flux observations over a glacier surface

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DOI	10.5194/tc-15-3007-2021
	Brief communication: Growth and decay of an ice stupa in alpine conditions - a simple model driven by energy-flux observations over a glacier surface
	Oerlemans J.; Balasubramanian S.; Clavuot C.; Keller F.
发表日期	2021
ISSN	19940416
起始页码	3007
结束页码	3012
卷号	15 期号:6
英文摘要	We present a simple model to calculate the evolution of an ice stupa (artificial ice reservoir). The model is formulated for a cone geometry and driven by energy balance measurements over a glacier surface for a 5-year period. An "exposure factor"is introduced to deal with the fact that an ice stupa has a very rough surface and is more exposed to wind than a flat glacier surface. The exposure factor enhances the turbulent fluxes. For characteristic alpine conditions at 2100gm, an ice stupa may reach a volume of 200 to 400gm3 in early April. We show sensitivities of ice stupa size to temperature changes and exposure factor. The model may also serve as an educational tool, with which the effects of snow cover, switching off water during daytime, different starting dates, switching off water during high wind speeds, etc. can easily be evaluated. © 2021 Johannes Oerlemans et al.
语种	英语
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/202397
作者单位	Institute for Marine and Atmospheric Research, Utrecht University, Princetonplein 5, Utrecht, 3585CC, Netherlands; Department of Geosciences, University of Fribourg, Fribourg, Switzerland; Architecture Clavuot, Gäugelistrasse 49, Chur, 7000, Switzerland; Academia Engiadina, Samedan, Switzerland; Department of Environmental Systems Science, ETH, Zurich, Switzerland
推荐引用方式 GB/T 7714	Oerlemans J.,Balasubramanian S.,Clavuot C.,et al. Brief communication: Growth and decay of an ice stupa in alpine conditions - a simple model driven by energy-flux observations over a glacier surface[J],2021,15(6).
APA	Oerlemans J.,Balasubramanian S.,Clavuot C.,&Keller F..(2021).Brief communication: Growth and decay of an ice stupa in alpine conditions - a simple model driven by energy-flux observations over a glacier surface.Cryosphere,15(6).
MLA	Oerlemans J.,et al."Brief communication: Growth and decay of an ice stupa in alpine conditions - a simple model driven by energy-flux observations over a glacier surface".Cryosphere 15.6(2021).