A 340 year record of biogenic sulphur from the Weddell Sea area, Antarctica

The high MSA (methanesulphonic acid) concentration reflects the proximity of the Weddell Sea, believed to be a region of high marine phytoplankton production. The overall mean nss-SO2-4 (non sea salt sulphate) concentration is about 66% of the total sulphate deposited in snowfall. Low-frequency vari...

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Bibliographic Details
Main Authors: Pasteur, EC, Mulvaney, R, Peel, DA, Saltzman, ES, Whung, PY
Format: Article in Journal/Newspaper
Language:unknown
Published: eScholarship, University of California 1995
Subjects:
Meteorology & Atmospheric Sciences
Atmospheric Sciences
Geophysics
Physical Geography and Environmental Geoscience
Laurie
Laurie Island
Scotia Bay
Weddell
Weddell Sea
Antarc*
Antarctica
Sea ice
Online Access:https://escholarship.org/uc/item/242725mk
Description
Summary:The high MSA (methanesulphonic acid) concentration reflects the proximity of the Weddell Sea, believed to be a region of high marine phytoplankton production. The overall mean nss-SO2-4 (non sea salt sulphate) concentration is about 66% of the total sulphate deposited in snowfall. Low-frequency variations of MSA and ozygen-isotope signals correlate closely, indicating that they may be modulated by similar atmospheric processes. Positive correlations are observed between the oxygen-isotope signature and both MSA and nss SO2-4. A small negative correlation can be seen between both species and the annual duration of sea ice at Scotia Bay, Laurie Island in the South Orkneys, since 1902. -from Authors

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