The difference of atmospheric chemical loadings show by electrical conductivity of snow and ice between Antarctica, Arctic and Qinghai-Tibetan Plateau

The relationship of ECM with ice acidity and impurities concentrations are much different between the Qinghai-Tibetan Plateau and the polar regions. On the Qinghai-Tibetan Plateau, ECM is dependent on the mineral ions (i.e., Ca(2+), Mg(2+), SO(2-)4, etc.) mainly derived from crustal sources, thus di...

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Bibliographic Details
Main Authors: Cunde, Xiao, Dahe, Qin, Tandong, Yao, Jiawen, Ren, Wenkun, Sheng
Format: Article in Journal/Newspaper
Language:English
Published: Polar Research Institute of China - PRIC 1999
Subjects:
Arctic
Greenland
Advances in Polar Science
Antarc*
Antarctica
Ice Sheet
Polar Science
Online Access:http://library.arcticportal.org/2173/
http://library.arcticportal.org/2173/1/A901.006.pdf
Description
Summary:The relationship of ECM with ice acidity and impurities concentrations are much different between the Qinghai-Tibetan Plateau and the polar regions. On the Qinghai-Tibetan Plateau, ECM is dependent on the mineral ions (i.e., Ca(2+), Mg(2+), SO(2-)4, etc.) mainly derived from crustal sources, thus displays a positive linear correlation between ECM and these ions. While in polar ice sheets, however, ECM of snow and ice is mainly dependent on the acidic roots such as Cl(-), SO(2-)4 and NO(-)3 that mostly come from ocean. Therefore, there is good relationship between ECM and Concentration of H(+). However, the relationship between ECM and major ions has complicated geographical differentiation in the whole Arctic. For instance, there no longer exists the same simple relationship in the central Arctic as that in the Greenland Ice Sheet, probably due to the disturbance of Arctic haze. In general, ECM of snow and ice is a potential indicator of atmospheric environment of cold regions.

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