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Application of a degree-day model for determination of mass balance of Urumqi Glacier No. 1, eastern Tianshan, China

Chemical characteristics of snow-firn pack in altai mountains and its environmental significance

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Journal of Earth Science : Volume 22, Issue 3, June 2011

Journal of Earth Science : Volume 22, Issue 2, April 2011

Journal of Earth Science : Volume 22, Issue 1, February 2011

Journal of Earth Science : Volume 21

Journal of Earth Science : Volume 20

Chemical characteristics of snow-firn pack in altai mountains and its environmental significance

Content Provider	Springer Nature Link
Author	Wang, Feiteng Wang, Lin Kang, Jian Kou, Futang
Copyright Year	2011
Abstract	In order to study the chemical characteristics of snow-firn pack in Altai Mountains and its environmental significance, a 1.5-m deep snow-firn pack was dug in the accumulation zone (3 300 m a.s.l.) of the Kanas Glacier in August 2009. A total of 15 samples were analyzed for major ions. Results show that the concentrations of major ions in the snow-firn pack are NH$_{4}$ $^{+}$>SO$_{4}$ $^{2−}$>Ca$^{2+}$>NO$_{3}$ $^{−}$>Na$^{+}$>Cl$^{−}$>K$^{+}$>Mg$^{2+}$. NH$_{4}$ $^{+}$ is the dominant cation with a medium value of 4.7 ueq·L$^{−1}$, accounting for 39.8% of the total cations, and SO$_{4}$ $^{2−}$ is the dominant anion, with a medium value of 4.0 ueq·L$^{−1}$, which accounts for 33.9% of the total cations. Compared with Belukha Glacier (Altai), Urumqi Glacier No. 1, and the Inilchek Glacier (Tienshan), there is a lower ion concentrations in the Kanas snow-firn pack. Potential sources of these chemical species are explored using correlation and empirical orthogonal function (EOF) analyses. The analyses indicate that major ion concentrations (except NH$_{4}$ $^{+}$) originate from crustal dust. Backward trajectory analysis was applied to get the origin of the air mass to Kanas Glacier. The results suggest that air pollutants emitted by forest fires in Siberia could be transported and influence the NH$_{4}$ $^{+}$, NO$_{3}$ $^{−}$, and SO$_{4}$ $^{2−}$ concentrations on the Kanas Glacier.
Starting Page	482
Ending Page	489
Page Count	8
File Format	PDF
ISSN	1674487X
Journal	Journal of Earth Science
Volume Number	22
Issue Number	4
e-ISSN	1867111X
Language	English
Publisher	China University of Geosciences
Publisher Date	2011-07-26
Publisher Place	China University of Geosciences
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Kanas Glacier snow-firn chemistry Altai Mountains backward trajectory forest fires Earth Sciences Geochemistry Geology Biogeosciences Applied Earth Sciences Computer Applications in Earth Sciences
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences

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