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DOI	10.5194/hess-23-1867-2019
	Midwinter melts in the Canadian prairies: Energy balance and hydrological effects
	Pavlovskii I.; Hayashi M.; Itenfisu D.
发表日期	2019
ISSN	1027-5606
起始页码	1867
结束页码	1883
卷号	23 期号:4
英文摘要	Snowpack accumulation and depletion are important elements of the hydrological cycle in the Canadian prairies. The surface runoff generated during snowmelt is transformed into streamflow or fills numerous depressions driving the focussed recharge of groundwater in this dry setting. The snowpack in the prairies can undergo several cycles of accumulation and depletion in a winter. The timing of the melt affects the mechanisms of snowpack depletion and their hydrological implications. The effects of midwinter melts were investigated at four instrumented sites in the Canadian prairies. Unlike net radiation-driven snowmelt during spring melt, turbulent sensible heat fluxes were the dominant source of energy inputs for midwinter melt occurring in the period with low solar radiation inputs. Midwinter melt events affect several aspects of hydrological cycle with lower runoff ratios than subsequent spring melt events, due to their role in the timing of the focussed recharge. Remote sensing data have shown that midwinter melt events regularly occur under the present climate throughout the Canadian prairies, indicating applicability of the study findings throughout the region. © Author(s) 2019.
语种	英语
scopus关键词	Groundwater; Runoff; Snow melting systems; Canadian prairie; Hydrological cycles; Hydrological effects; Remote sensing data; Sensible heat flux; Snowpack accumulation; Source of energy; Surface runoffs; Remote sensing; energy balance; groundwater; hydrological cycle; meltwater; remote sensing; runoff; sensible heat flux; snow accumulation; snowmelt; snowpack; solar radiation; streamflow; winter; Canada; Prairie Provinces
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159706
作者单位	Pavlovskii, I., Department of Geoscience, University of Calgary, Calgary, AB T2N 1N4, Canada; Hayashi, M., Department of Geoscience, University of Calgary, Calgary, AB T2N 1N4, Canada; Itenfisu, D., Alberta Agriculture and Forestry, Edmonton, AB T6H 5T6, Canada
推荐引用方式 GB/T 7714	Pavlovskii I.,Hayashi M.,Itenfisu D.. Midwinter melts in the Canadian prairies: Energy balance and hydrological effects[J],2019,23(4).
APA	Pavlovskii I.,Hayashi M.,&Itenfisu D..(2019).Midwinter melts in the Canadian prairies: Energy balance and hydrological effects.Hydrology and Earth System Sciences,23(4).
MLA	Pavlovskii I.,et al."Midwinter melts in the Canadian prairies: Energy balance and hydrological effects".Hydrology and Earth System Sciences 23.4(2019).