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dc.contributor.authorJackson, RL
dc.contributor.authorGabric, AJ
dc.contributor.authorWoodhouse, MT
dc.contributor.authorSwan, HB
dc.contributor.authorJones, GB
dc.contributor.authorCropp, R
dc.contributor.authorDeschaseaux, ESM
dc.date.accessioned2020-09-16T06:23:45Z
dc.date.available2020-09-16T06:23:45Z
dc.date.issued2020
dc.identifier.issn2169-897Xen_US
dc.identifier.doi10.1029/2019JD031837en_US
dc.identifier.urihttp://hdl.handle.net/10072/397578
dc.description.abstractVariability in atmospheric dimethylsulfide (DMSa) and the potential influence on atmospheric aerosols was investigated at Heron Island in the southern Great Barrier Reef (GBR), Australia. This work compiles previously published DMSa data (reported in Swan, Jones, Deschaseaux, & Eyre, 2017, https://doi.org/10.5194/bg‐14‐229‐2017), with additional surveys of DMSa, atmospheric particle number concentration, and other oceanic and atmospheric data sets. DMSa was higher in summer (mean 3.2 nmol m−3/78 ppt) than winter (mean 1.3 nmol m−3/32 ppt), reflective of seasonal shifts in phytoplankton biomass and emissions from corals in the southern GBR. Seasonally extreme spikes in DMSa were detected during low tide and low wind speed, supporting findings that the coral reef can be an important source of DMSa above background oceanic emissions. A significant link was present between DMSa and aerosol concentration (ranging from 0.5 to 2.5 μm) during calm, daylight hours, when conditions were optimal for the local oxidation of DMSa to sulfate aerosol precursors. This link may reflect condensational growth of existing fine particles (< 0.5 μm), which is the dominant pathway by which biogenic trace gases influence aerosols in the marine boundary layer. Aerosol concentration significantly correlated with reduced surface solar irradiance and sea surface temperature, which is potential evidence of a local negative feedback mitigating coral physiological stress. These findings provide a step toward a better understanding of the processes influencing DMSa and aerosol concentrations and of the consequences for the local radiative balance over coral reefs; an increasingly important topic with ongoing ocean warming and coral bleaching.en_US
dc.description.peerreviewedYesen_US
dc.languageEnglishen_US
dc.publisherWileyen_US
dc.relation.ispartofpagefrome2019JD031837en_US
dc.relation.ispartofissue7en_US
dc.relation.ispartofjournalJournal of Geophysical Research: Atmospheresen_US
dc.relation.ispartofvolume125en_US
dc.subject.fieldofresearchEnvironmental Sciencesen_US
dc.subject.fieldofresearchAtmospheric Sciencesen_US
dc.subject.fieldofresearchPhysical Geography and Environmental Geoscienceen_US
dc.subject.fieldofresearchcode05en_US
dc.subject.fieldofresearchcode0401en_US
dc.subject.fieldofresearchcode0406en_US
dc.subject.keywordsScience & Technologyen_US
dc.subject.keywordsPhysical Sciencesen_US
dc.subject.keywordsMeteorology & Atmospheric Sciencesen_US
dc.subject.keywordsdimethylsulfideen_US
dc.subject.keywordscoral reefen_US
dc.titleCoral Reef Emissions of Atmospheric Dimethylsulfide and the Influence on Marine Aerosols in the Southern Great Barrier Reef, Australiaen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Articlesen_US
dcterms.bibliographicCitationJackson, RL; Gabric, AJ; Woodhouse, MT; Swan, HB; Jones, GB; Cropp, R; Deschaseaux, ESM, Coral Reef Emissions of Atmospheric Dimethylsulfide and the Influence on Marine Aerosols in the Southern Great Barrier Reef, Australia, Journal of Geophysical Research: Atmospheres, 2020, 125 (7), pp. e2019JD031837en_US
dcterms.licensehttp://creativecommons.org/licenses/by/4.0/en_US
dc.date.updated2020-09-16T06:20:53Z
dc.description.versionPublisheden_US
gro.rights.copyright© 2020. The Authors.This is an open access article under theterms of the Creative Commons Attribution License, which permits use,distribution and reproduction in anymedium, provided the original work isproperly citeden_US
gro.hasfulltextFull Text
gro.griffith.authorCropp, Roger A.
gro.griffith.authorGabric, Albert J.
gro.griffith.authorJackson, Rebecca


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