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Methanesulfonic acid in a Svalbard ice core as an indicator of ocean climate
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences.
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2000 (English)In: GEOPHYSICAL RESEARCH LETTERS, ISSN 0094-8276, Vol. 27, no 8, 1159-1162 p.Article in journal (Refereed) Published
Abstract [en]

Methanesulfonic acid (MSA) is an atmospheric oxidation product of dimethyl sulfide, produced by marine biota. MSA preserved in a Svalbard glacier between 1920 and 1996 is compared with the sea surface temperature (SST) and sea-ice extent of the surrounding ocean over the same period. On decadal timescales high MSA concentrations are found to be associated with warm SST and reduced sea-ice extent. MSA appears to be influenced by climatic changes related to variations in the import of warm Atlantic Water to the Barents Sea. Atlantic Water plays an important role in the Arctic climate system, therefore MSA concentrations may indirectly reflect larger-scale changes in the region and may be useful as a proxy for past climate.

Place, publisher, year, edition, pages
2000. Vol. 27, no 8, 1159-1162 p.
Keyword [en]
BIOLOGICAL-ACTIVITY; AEROSOL-PARTICLES; DIMETHYL SULFIDE; BIOGENIC SULFUR; SEA; VARIABILITY; SULFATE
National Category
Physical Geography
Identifiers
URN: urn:nbn:se:uu:diva-37741OAI: oai:DiVA.org:uu-37741DiVA: diva2:65640
Note
Addresses: O'Dwyer J, Norwegian Polar Res Inst, N-9296 Tromso, Norway. Norwegian Polar Res Inst, N-9296 Tromso, Norway. Norwegian Polar Res Inst, N-0032 Oslo, Norway. Uppsala Univ, Dept Earth Sci, S-75236 Uppsala, Sweden. Univ Lappland, Arctic Ctr, RovaniAvailable from: 2005-04-19 Created: 2005-04-19 Last updated: 2011-01-14

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Pohjola, V

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