In:
Atmospheric Science Letters, Wiley, Vol. 16, No. 2 ( 2015-04), p. 141-147
Abstract:
Using a global model, we investigate how bromine chemistry affects cloud condensation nuclei ( CCN ) formation in the remote marine atmosphere. Bromine increases dimethylsulphide ( DMS ) oxidation but lowers SO 2 yield, leading to less sulphate aerosol. The effect is largest (3–7% decrease in total CCN and 15–30% decrease in CCN from DMS ) over the summertime southern ocean, a region of strong bromine release from sea‐salt. DMS and bromine emissions have a coupled feedback effect on CCN . Increased DMS enhances the release of sea‐salt bromine through increased aerosol acidity. This enhanced bromine suppresses the CCN response to increased DMS by up to 30%.
Type of Medium:
Online Resource
ISSN:
1530-261X
,
1530-261X
DOI:
10.1002/asl2.2015.16.issue-2
Language:
English
Publisher:
Wiley
Publication Date:
2015
detail.hit.zdb_id:
2025884-7
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