TY  - JOUR
AU  - Preunkert, S.
AU  - Jourdain, B.
AU  - Legrand, M.
AU  - Udisti, R.
AU  - Becagli, S.
AU  - Cerri, O.
PY  - 2008//
TI  - Seasonality of sulfur species (dimethyl sulfide, sulfate, and methanesulfonate) in Antarctica: Inland versus coastal regions
T2  - J. Geophys. Res.
JO  - Journal of geophysical research-atmospheres
SP  - D15302
VL  - 113
PB  - American Geophysical Union
KW  - sulfur cycle
KW  - DMS
KW  - 0365 Atmospheric Composition and Structure: Troposphere: composition and chemistry
KW  - 0315 Atmospheric Composition and Structure: Biosphere/atmosphere interactions
KW  - 0305 Atmospheric Composition and Structure: Aerosols and particles
N2  - To gain a better understanding of sulfate and methanesulfonate (MS?) signals recorded in central Antarctic ice cores in terms of past atmospheric changes, an atmospheric year-round study of these aerosols was performed in 2006 at the Concordia station (75°S, 123°E) located on the high Antarctic plateau. In addition, a year-round study of dimethyl sulfide (DMS), the gaseous precursor of sulfur aerosol, was conducted in 2007. The DMS mixing ratio remains below 1 pptv from October to January and exhibits a maximum of 10 pptv during the first half of winter (from April to July). Surprisingly, the well-marked maximum of sulfur aerosol recorded in January at coastal Antarctic sites is observed at Concordia for sulfate but not for MS? which peaks before and after sulfate in November and March, respectively. This first study of DMS and of its by-oxidation aerosol species conducted at inland Antarctica points out the complex coupling between transport and photochemistry of sulfur species over Antarctica. The findings highlight the complexity of the link between MS? ice core records extracted at high Antarctic plateau sites and DMS emissions from the Southern ocean.
SN  - 0148-0227
UR  - http://dx.doi.org/10.1029/2008JD009937
N1  - exported from refbase (http://publi.ipev.fr/polar_references/show.php?record=5518), last updated on Tue, 28 Apr 2009 10:21:09 +0200
ID  - Preunkert_etal2008
ER  -