Sherwen, TM, Evans, MJ, Spracklen, DV et al. (5 more authors) (2016) Global modeling of tropospheric iodine aerosol. Geophysical Research Letters, 43 (18). pp. 10012-10019. ISSN 0094-8276
Abstract
Natural aerosols play a central role in the Earth system. The conversion of dimethyl sulfide to sulfuric acid is the dominant source of oceanic secondary aerosol. Ocean emitted iodine can also produce aerosol. Using a GEOS-Chem model, we present a simulation of iodine aerosol. The simulation compares well with the limited observational data set. Iodine aerosol concentrations are highest in the tropical marine boundary layer (MBL) averaging 5.2 ng (I) m−3 with monthly maximum concentrations of 90 ng (I) m−3. These masses are small compared to sulfate (0.75% of MBL burden, up to 11% regionally) but are more significant compared to dimethyl sulfide sourced sulfate (3% of the MBL burden, up to 101% regionally). In the preindustrial, iodine aerosol makes up 0.88% of the MBL burden sulfate mass and regionally up to 21%. Iodine aerosol may be an important regional mechanism for ocean-atmosphere interaction.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | ©2016. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
Keywords: | iodine; aerosol; dimethyl sulfide; marine boundary layer; DMS; sulfate |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst for Climate & Atmos Science (ICAS) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 22 Nov 2016 10:57 |
Last Modified: | 05 Oct 2017 16:09 |
Published Version: | https://doi.org/10.1002/2016GL070062 |
Status: | Published |
Publisher: | American Geophysical Union |
Identification Number: | 10.1002/2016GL070062 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:107996 |