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Chemistry of snow and lake water in Antarctic region

Ali, K and Sonbawane, S and Chate, DM and Siingh, D and Rao, PSP and Safai, PD and Budhavant, KB (2010) Chemistry of snow and lake water in Antarctic region. Journal of Earth System Science, 119 (6). pp. 753-762.

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Abstract

Surface snow and lake water samples were collected at different locations around Indian station at Antarctica, Maitri, during December 2004-March 2005 and December 2006-March 2007. Samples were analyzed for major chemical ions. It is found that average pH value of snow is 6.1. Average pH value of lake water with low chemical content is 6.2 and of lake water with high chemical content is 6.5. The Na + and Cl - are the most abundantly occurring ions at Antarctica. Considerable amount of SO 2- 4 is also found in the surface snow and the lake water which is attributed to the oxidation of DMS produced by marine phytoplankton. Neutralization of acidic components of snow is mainly done by NH + 4 and Mg 2+. The Mg 2+, Ca 2+ and K + are nearly equally effective in neutralizing the acidic components in lake water. The NH + 4 and SO 2- 4 occur over the Antarctica region mostly in the form of (NH 4) 2SO 4.

Item Type: Article
Additional Information: Copyright of this article belongs to Indian academy of Science
Uncontrolled Keywords: chlorine; dimethylsulfide; lake water; neutralization; oxidation; pH; snow; sodium; sulfur dioxide; water chemistry, Antarctica; East Antarctica; Maitri
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 28 May 2015 09:06
Last Modified: 28 May 2015 09:06
URI: http://moeseprints.incois.gov.in/id/eprint/747

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