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Published (Version of record)CC BY V4.0, Open Access
Published (Version of record)CC BY V4.0, Open
Journal article
The contribution of coral-reef-derived dimethyl sulfide to aerosol burden over the Great Barrier Reef: a modelling study
Atmospheric Chemistry and Physics, Vol.22(4), pp.2419-2445
22/02/2022
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Abstract
Coral reefs have been found to produce the sulfur compound dimethyl sulfide (DMS), a climatically relevant aerosol precursor predominantly associated with phytoplankton. Until recently, the role of coral-reef-derived DMS within the climate system had not been quantified. A study preceding the present work found that DMS produced by corals had negligible long-term climatic forcing at the global–regional scale. However, at sub-daily timescales more typically associated with aerosol and cloud formation, the influence of coral-reef-derived DMS on local aerosol radiative effects remains unquantified. The Weather Research and Forecasting model coupled with Chemistry (WRF-Chem) has been used in this work to study the role of coral-reef-derived DMS at sub-daily timescales for the first time. WRF-Chem was run to coincide with an October 2016 field campaign over the Great Barrier Reef, Queensland, Australia, against which the model was evaluated. After updating and scaling the DMS surface water climatology, the model reproduced DMS and sulfur concentrations well. The inclusion of coral-reef-derived DMS resulted in no significant change in sulfate aerosol mass or total aerosol number. Subsequently, no direct or indirect aerosol effects were detected. The results suggest that the co-location of the Great Barrier Reef with significant anthropogenic aerosol sources along the Queensland coast prevents coral-reef-derived aerosol from having a modulating influence on local aerosol burdens in the current climate.
Details
- Title
- The contribution of coral-reef-derived dimethyl sulfide to aerosol burden over the Great Barrier Reef: a modelling study
- Creators
- Sonya L Fiddes - University of MelbourneMatthew T Woodhouse - Commonwealth Scientific and Industrial Research OrganisationSteve Utembe - Environmental Protection Authority Victoria, Macleod, AustraliaRobyn Schofield - University of MelbourneSimon P Alexander - Australian Antarctic DivisionJoel Alroe - Queensland University of TechnologyScott D Chambers - Australian Nuclear Science and Technology OrganisationZhenyi Chen - Anhui Institute of Optics and Fine MechanicsLuke Cravigan - Queensland University of TechnologyErin Dunne - Commonwealth Scientific and Industrial Research OrganisationRuhi S Humphries - Commonwealth Scientific and Industrial Research OrganisationGraham Johnson - Queensland University of TechnologyMelita D Keywood - Queensland University of TechnologyTodd P Lane - University of MelbourneBranka Miljevic - Queensland University of TechnologyYuko Omori - University of TsukubaAlain Protat - Australian Bureau of Meteorology, Melbourne, AustraliaZoran Ristovski - Queensland University of TechnologyPaul Selleck - Commonwealth Scientific and Industrial Research OrganisationHiroshi Tanimoto - National Institute for Environmental StudiesHilton B Swan - Southern Cross UniversityJason P Ward - Commonwealth Scientific and Industrial Research OrganisationAlastair G Williams - Australian Nuclear Science and Technology Organisation
- Publication Details
- Atmospheric Chemistry and Physics, Vol.22(4), pp.2419-2445
- Publisher
- Copernicus GmbH
- Grant note
- This research has been supported by the Australian Research Council (grant nos. DP150101649, CE170100023, and CE110001028) and the Grant-in-Aid for Scientific Research (15H01732 and 17KK0016) from the Ministry of Education, Culture, Sports, Science and Technology, Japan.
- Identifiers
- 991013000298602368
- Copyright
- © Author(s) 2022. This work is distributed under the Creative Commons Attribution 4.0 License. Published by Copernicus Publications on behalf of the European Geosciences Union.
- Academic Unit
- Science; Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article