气候变化领域集成服务门户(CCPortal): Seasonal variations of pH and electrical conductivity in a snow-firn pack on Glacier No. 1, eastern Tianshan, China

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DOI	10.1016/j.coldregions.2006.09.006
	Seasonal variations of pH and electrical conductivity in a snow-firn pack on Glacier No. 1, eastern Tianshan, China
	Li, Xiangying; Li, Zhongqin; Ding, Yongjian; Liu, Shiyin; Zhao, Zhongping; Luo, Liang; Pang, Hongxi; Li, Chuanjin; Li, Huilin; You, Xiaoni; Wang, Feiteng
发表日期	2007
ISSN	0165-232X
EISSN	1872-7441
起始页码	55
结束页码	63
卷号	48 期号:1
英文摘要	Analyses of pH and electrical conductivity (EC) in surface snow and snow-firn pack samples collected successively in a weekly basis during September 2002 to September 2004 on the east branch of Glacier No. 1, eastern Tianshan, China is presented. pH and EC in surface snow show obvious seasonal variations. pH and EC values are high in spring and early summer, and they are low in late summer; moreover, pH value indicates more and less alkalinity in spring and winter, respectively. In addition, both pH and EC peaks strongly coincide with the corresponding period of greatest NE and ENE wind velocity. After deposition, pH and EC in snow-firn pack display diverse features and seasonal trends, which correlate with snow compaction, dry deposition, precipitation and temperature, and so on. Furthermore, both pH and EC peaks occur above dust layers, and are adjacent to dust layers in some snow-firn packs. This implies that dust layers may have an influence on the elution process of soluble ions. In addition, linear correlation analyses among major chemical species (Na+, K+, Ca2+, Mg2+, NH4+, Cl-, SO42-, NO3-, pH and EC) in surface snow indicate that Ca2+ is the key ion determining pH and EC in the study area. (c) 2006 Elsevier B.V All rights reserved.
关键词	ICE CORES GREENLAND POLLUTION ACIDITY RECORD
英文关键词	Glacier No. 1; pH; EC; seasonal variation; elution process; snow-firn pack
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS记录号	WOS:000245571400006
来源期刊	COLD REGIONS SCIENCE AND TECHNOLOGY
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/257497
推荐引用方式 GB/T 7714	Li, Xiangying,Li, Zhongqin,Ding, Yongjian,et al. Seasonal variations of pH and electrical conductivity in a snow-firn pack on Glacier No. 1, eastern Tianshan, China[J]. 中国科学院青藏高原研究所,2007,48(1).
APA	Li, Xiangying.,Li, Zhongqin.,Ding, Yongjian.,Liu, Shiyin.,Zhao, Zhongping.,...&Wang, Feiteng.(2007).Seasonal variations of pH and electrical conductivity in a snow-firn pack on Glacier No. 1, eastern Tianshan, China.COLD REGIONS SCIENCE AND TECHNOLOGY,48(1).
MLA	Li, Xiangying,et al."Seasonal variations of pH and electrical conductivity in a snow-firn pack on Glacier No. 1, eastern Tianshan, China".COLD REGIONS SCIENCE AND TECHNOLOGY 48.1(2007).