Open AccessThe dependency of geoengineered sulfate aerosol on the emission strategy
Author(s) -
Niemeier U.,
Schmidt H.,
Timmreck C.
Publication year - 2010
Publication title -
atmospheric science letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.951
H-Index - 45
ISSN - 1530-261X
DOI - 10.1002/asl.304
Subject(s) - aerosol , sulfate , sulfate aerosol , atmospheric sciences , radiative transfer , environmental science , radius , climatology , particle (ecology) , sulfur , effective radius , meteorology , chemistry , physics , geology , oceanography , computer security , organic chemistry , quantum mechanics , galaxy , computer science
The climatic effect of geoengineered stratospheric sulfate aerosol depends on the strategy for sulfur emission that determines the microphysical evolution of the resulting sulfate layer, in particular the radius and radiative impact of the aerosols. Simulations with a three‐dimensional general circulation model (GCM), including an aerosol microphysical model, show e.g. decreasing sulfate lifetime with increasing emission rate. Furthermore, scenarios that differ with respect to location, local and temporal distribution and chemical composition of the emissions are studied. The study shows detailed information on particle radius, sulfate burden and radiative impact for these scenarios. Copyright © 2010 Royal Meteorological Society