Sherwen, Tomás orcid.org/0000-0002-3006-3876, Evans, Mathew John orcid.org/0000-0003-4775-032X, Carpenter, Lucy Jane orcid.org/0000-0002-6257-3950 et al. (5 more authors) (2016) Global modeling of tropospheric iodine aerosol. Geophysical Research Letters. 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. |
Keywords: | DMS,aerosol,dimethyl sulfide,iodine,marine boundary layer,sulfate |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Depositing User: | Pure (York) |
Date Deposited: | 15 Sep 2016 11:09 |
Last Modified: | 16 Dec 2024 00:06 |
Published Version: | https://doi.org/10.1002/2016GL070062 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1002/2016GL070062 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:104386 |
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Filename: Sherwen_et_al_2016_Geophysical_Research_Letters.pdf
Description: Global modelling of tropospheric iodine aerosol
Licence: CC-BY 2.5
Filename: Sherwen_et_al_2016_Geophysical_Research_Letters.pdf
Description: Sherwen_et_al-2016-Geophysical_Research_Letters
Licence: CC-BY 2.5