TY - JOUR
T1 - Enhanced role of transition metal Ion catalysis during In-Cloud oxidation of SO2
AU - Harris, Eliza
AU - Sinha, Bärbel
AU - Van Pinxteren, Dominik
AU - Tilgner, Andreas
AU - Fomba, Khanneh Wadinga
AU - Schneider, Johannes
AU - Roth, Anja
AU - Gnauk, Thomas
AU - Fahlbusch, Benjamin
AU - Mertes, Stephan
AU - Lee, Taehyoung
AU - Collett, Jeffrey
AU - Foley, Stephen
AU - Borrmann, Stephan
AU - Hoppe, Peter
AU - Herrmann, Hartmut
PY - 2013
Y1 - 2013
N2 - Global sulfate production plays a key role in aerosol radiative forcing; more than half of this production occurs in clouds. We found that sulfur dioxide oxidation catalyzed by natural transition metal ions is the dominant in-cloud oxidation pathway. The pathway was observed to occur primarily on coarse mineral dust, so the sulfate produced will have a short lifetime and little direct or indirect climatic effect. Taking this into account will lead to large changes in estimates of the magnitude and spatial distribution of aerosol forcing. Therefore, this oxidation pathway - which is currently included in only one of the 12 major global climate models - will have a significant impact on assessments of current and future climate.
AB - Global sulfate production plays a key role in aerosol radiative forcing; more than half of this production occurs in clouds. We found that sulfur dioxide oxidation catalyzed by natural transition metal ions is the dominant in-cloud oxidation pathway. The pathway was observed to occur primarily on coarse mineral dust, so the sulfate produced will have a short lifetime and little direct or indirect climatic effect. Taking this into account will lead to large changes in estimates of the magnitude and spatial distribution of aerosol forcing. Therefore, this oxidation pathway - which is currently included in only one of the 12 major global climate models - will have a significant impact on assessments of current and future climate.
UR - http://www.scopus.com/inward/record.url?scp=84877633252&partnerID=8YFLogxK
U2 - 10.1126/science.1230911
DO - 10.1126/science.1230911
M3 - Article
C2 - 23661757
AN - SCOPUS:84877633252
VL - 340
SP - 727
EP - 730
JO - Science (New York, N.Y.)
JF - Science (New York, N.Y.)
SN - 0036-8075
IS - 6133
ER -