[AAS06-P26] Do hypohalous acids play important roles on sulfate formation in the Antarctic atmosphere?
Keywords:Antarctica, Sulfate aerosols, Reactive bromine, 17O excess
To test this hypothesis, we simulate 17O excess of SO42- using 3D chemical transport model (GEOS-Chem) in which reactions of S(IV) and hypohalous acids were recently implemented. We discuss the results by comparison of the observations at DDU with those from Concordia (75°06'S, 123°33'E), the inland Antarctic station which is located more than 1,000 km away from the sea ice.
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