气候变化领域集成服务门户(CCPortal): The electrical self-potential method is a non-intrusive snow-hydrological sensor

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DOI	10.5194/tcd-9-4437-2015
	The electrical self-potential method is a non-intrusive snow-hydrological sensor
	Thompson S.S.; Kulessa B.; Essery R.L.H.; Lüthi M.P.
发表日期	2015
ISSN	19940432
卷号	9 期号:4
英文摘要	Our ability to measure, quantify and assimilate hydrological properties and processes of snow in operational models is disproportionally poor compared to the significance of seasonal snowmelt as a global water resource and major risk factor in flood and avalanche forecasting. Encouraged by recent theoretical, modelling and laboratory work, we show here that the diurnal evolution of aerially-distributed self-potential magnitudes closely track those of bulk meltwater fluxes in melting in-situ snowpacks at Rhone and Jungfraujoch glaciers, Switzerland. Numerical modelling infers temporally-evolving liquid water contents in the snowpacks on successive days in close agreement with snow-pit measurements. Muting previous concerns, the governing physical and chemical properties of snow and meltwater became temporally invariant for modelling purposes. Because measurement procedure is straightforward and readily automated for continuous monitoring over significant spatial scales, we conclude that the self-potential geophysical method is a highly-promising non-intrusive snow-hydrological sensor for measurement practice, modelling and operational snow forecasting. © Author(s) 2015.
学科领域	electrical method; environmental monitoring; hydrological modeling; meltwater; numerical model; physicochemical property; risk factor; snow avalanche; snowmelt; snowpack; Bern [Switzerland]; Jungfraujoch; Switzerland
语种	英语
scopus关键词	electrical method; environmental monitoring; hydrological modeling; meltwater; numerical model; physicochemical property; risk factor; snow avalanche; snowmelt; snowpack; Bern [Switzerland]; Jungfraujoch; Switzerland
来源期刊	Cryosphere Discussions
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119831
作者单位	Department of Arctic Geology, University Centre in Svalbard (UNIS), Svalbard, Norway; College of Science, Swansea University, Swansea, United Kingdom; School of Geosciences, University of Edinburgh, Edinburgh, United Kingdom; University of Zurich, Zurich, Switzerland; Versuchsanstalt für Wasserbau, Hydrologie und Glaziologie (VAW), ETH Zürich, Zurich, Switzerland
推荐引用方式 GB/T 7714	Thompson S.S.,Kulessa B.,Essery R.L.H.,et al. The electrical self-potential method is a non-intrusive snow-hydrological sensor[J],2015,9(4).
APA	Thompson S.S.,Kulessa B.,Essery R.L.H.,&Lüthi M.P..(2015).The electrical self-potential method is a non-intrusive snow-hydrological sensor.Cryosphere Discussions,9(4).
MLA	Thompson S.S.,et al."The electrical self-potential method is a non-intrusive snow-hydrological sensor".Cryosphere Discussions 9.4(2015).