Document Type

Article

Publication Title

Geophysical Research Letters

Publication Date

3-1993

First Page

443

Last Page

446

Issue Number

6

Volume Number

20

Abstract/ Summary

Proxy records of biogenic sulfur gas obtained from ice cores suggest that variability in marine biogenic sulfur emissions may reflect changes in climate [Saigne and Legrand, 1987; Legrand et al., 1988, Legrand et al., 1991; Anderson and Charlson, 1991]. Increased sea‐ice extent has previously been proposed as one cause of relatively high methanesulfonic acid (MSA) in glacial‐age ice core samples [Gibson et al., 1990]. We have analyzed MSA, one of the oxidation products of the biogenic sulfur gas dimethylsulfide [Hatakeyama et al., 1985], from snowpit samples recovered from a coastal site in Southern Victoria Land, Antarctica. Time series of MSA correlate significantly with the longest continuous record available of Southern Ocean sea‐ice extent (two decades) [Jacka, 1990].

Citation/Publisher Attribution

Welch, K. A., P. A. Mayewski, and S. I. Whitlow (1993), Methanesulfonic acid in coastal Antarctic snow related to sea‐ice extent, Geophysical Research Letters, 20(6), 443–446, doi:10.1029/93GL00499. http://www.agu.org/pubs/crossref/1993/93GL00499.shtml

Publisher Statement

© Copyright American Geophysical Union

DOI

10.1029/93GL00499

Version

publisher's version of the published document

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