气候变化领域集成服务门户(CCPortal): Using Thermal Springs to Quantify Deep Groundwater Flow and Its Thermal Footprint in the Alps and a Comparison With North American Orogens

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DOI	10.1029/2020GL090134
	Using Thermal Springs to Quantify Deep Groundwater Flow and Its Thermal Footprint in the Alps and a Comparison With North American Orogens
	Luijendijk E.; Winter T.; Köhler S.; Ferguson G.; von Hagke C.; Scibek J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	The extent of deep groundwater flow in mountain belts and its thermal effects are uncertain. Here, we use a new database of discharge, temperature, and composition of thermal springs in the Alps to estimate the extent of deep groundwater flow and its contribution to the groundwater and heat budget. The results indicate that thermal springs are fed exclusively by meteoric water and make up 0.1% of the total groundwater budget. Spring water circulates on average to a depth of at least 2 km. The net heat extracted from the subsurface equals 1% of the background heat flow, which equals an average thermal footprint of 7 km2. Cooling by downward flow and heating by upward flow are three and two times higher than the net heat flow, respectively. Comparison with North American orogens shows that hydrothermal activity is higher in areas with high relief or areas under extension. ©2020. The Authors.
英文关键词	Budget control; Geothermal springs; Groundwater flow; Heat transfer; Deep groundwaters; Downward flow; Heat budget; Hydrothermal activity; Meteoric waters; Mountain belts; North American; Spring water; Groundwater; discharge; groundwater flow; heating; hydrothermal activity; meteoric water; mountain region; temperature profile; thermal spring; Alps; North America
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169445
作者单位	Department of structural geology and geodynamics, University of Göttingen, Göttingen, Germany; Geological Institute, RWTH Aachen University, Aachen, Germany; Department of Civil, Geo, and Environmental Engineering, Technical University of Munich, Munich, Germany; GeoZentrum Nordbayern, Universität Erlangen-Nürnberg, Erlangen, Germany; Department of Civil, Geological, and Environmental Engineering, University of Saskatchewan, Saskatoon, SK, Canada; Department of Geography and Geology, University of Salzburg, Salzburg, Austria; Environmental Geosphere Engineering Laboratory, Graduate School of Engineering, Kyoto University, Kyoto, Japan
推荐引用方式 GB/T 7714	Luijendijk E.,Winter T.,Köhler S.,et al. Using Thermal Springs to Quantify Deep Groundwater Flow and Its Thermal Footprint in the Alps and a Comparison With North American Orogens[J],2020,47(22).
APA	Luijendijk E.,Winter T.,Köhler S.,Ferguson G.,von Hagke C.,&Scibek J..(2020).Using Thermal Springs to Quantify Deep Groundwater Flow and Its Thermal Footprint in the Alps and a Comparison With North American Orogens.Geophysical Research Letters,47(22).
MLA	Luijendijk E.,et al."Using Thermal Springs to Quantify Deep Groundwater Flow and Its Thermal Footprint in the Alps and a Comparison With North American Orogens".Geophysical Research Letters 47.22(2020).