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DOI	10.1002/hyp.6662
	The effect of refreezing on the isotopic composition of melting snowpack
	Zhou, Shiqiao; Nakawo, Masayoshi; Hashimoto, Shigemasa; Sakai, Akiko
通讯作者	Zhou, SQ (通讯作者)
发表日期	2008
ISSN	0885-6087
起始页码	873
结束页码	882
卷号	22 期号:6
英文摘要	The isotopic composition of solid and liquid portions of natural melting snowpack is investigated in detail by the separating of liquid water from snow grains at different depths of the snowpack. The slope of the delta D-delta(18)O line for the liquid phase is found to be lower than for the solid phase. This is proved to be due to the isotopic fractionation occurring in the melt-freeze mass exchange within the snowpack. Melting of the snowpack has no clear impact on the delta D-delta(18)O line for the solid phase, but the slope of the delta D-delta(18)O line for the liquid shows an overall slight decrease in the melting period. When the snowpack is refrozen, the refreezing process would inevitably cause the slope of the solid phase to decrease because of the discrepancy between the slopes of the two phases. Thus the slope of the solid would become lower and lower as the diurnal melt-freeze episodes cycle throughout the melting season. This effect is then demonstrated by looking into the isotopic composition changes of glacier firn. The extent of the effect depends on the snowpack properties and environmental conditions. The slope changes also result in a decreasing trend in deuterium excess. Copyright (C) 2007 John Wiley & Sons, Ltd.
关键词	HYDROGRAPH SEPARATION SEASONAL SNOWPACK DEUTERIUM EXCESS SOLUTE TRANSPORT ICE FRACTIONATION WATER EVOLUTION SNOWMELT MELTWATER
英文关键词	ice core; snowpack; refreezing; isotopic composition
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:000254690600014
来源期刊	HYDROLOGICAL PROCESSES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257600
推荐引用方式 GB/T 7714	Zhou, Shiqiao,Nakawo, Masayoshi,Hashimoto, Shigemasa,et al. The effect of refreezing on the isotopic composition of melting snowpack[J]. 中国科学院青藏高原研究所,2008,22(6).
APA	Zhou, Shiqiao,Nakawo, Masayoshi,Hashimoto, Shigemasa,&Sakai, Akiko.(2008).The effect of refreezing on the isotopic composition of melting snowpack.HYDROLOGICAL PROCESSES,22(6).
MLA	Zhou, Shiqiao,et al."The effect of refreezing on the isotopic composition of melting snowpack".HYDROLOGICAL PROCESSES 22.6(2008).