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dc.contributor.authorCropp, Rogeren_US
dc.contributor.authorGabric, Alberten_US
dc.contributor.authorMcTainsh, Granten_US
dc.contributor.authorBraddock, Rogeren_US
dc.contributor.authorTindale, Neilen_US
dc.contributor.editorMheinrat Andreaeen_US
dc.date.accessioned2017-04-24T08:32:14Z
dc.date.available2017-04-24T08:32:14Z
dc.date.issued2005en_US
dc.date.modified2009-08-27T06:51:37Z
dc.identifier.issn08866236en_US
dc.identifier.doi10.1029/2004GB002436en_AU
dc.identifier.urihttp://hdl.handle.net/10072/4405
dc.description.abstractTwo hypotheses that postulate interactions between ocean biota and aerosols in the atmosphere have generated substantial research into marine systems. The stimulation of phytoplankton photosynthesis by the provision of iron, a micronutrient contained in deposited aeolian dust, (the "Iron Hypothesis"), and the contribution of dimethylsulphide (DMS) produced by marine ecosystems to the atmospheric burden of aerosols (the "CLAW Hypothesis") have been the focus of much research. Satellite sensors, such as the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) now provide moderate-resolution time series of measurements of the optical properties of the oceans and atmosphere over most of the earth's surface. These data provide an unprecedented opportunity to investigate the ubiquity of biotic linkages between the ocean and atmosphere at the global scale. We analysed five years of SeaWiFS 8-day fields of two variables, chlorophyll concentration and aerosol optical depth, for the global oceans. This first global, multi-year approach does not yet allow unequivocal conclusions as satellite measurements of chlorophyll can be influenced by aerosol properties of the atmosphere and several variables we do not yet examine are likely to play a role. We find correlation between optical properties of the ocean and atmosphere over much of the globe, in particular the mid-latitudes. While some regional analyses indicate that SeaWiFS chlorophyll retrievals are biased by dust in the atmosphere, our results do not support the existence of widespread bias in the SeaWiFS products, but are consistent with global-scale couplings posited by the Iron and CLAW hypotheses.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.format.extent3105580 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherAmerican Geophysical Unionen_US
dc.publisher.placeWashington DC, USAen_US
dc.publisher.urihttp://www.agu.org/journals/gl/en_AU
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrom1en_US
dc.relation.ispartofpageto21en_US
dc.relation.ispartofissue4en_US
dc.relation.ispartofjournalGlobal Biogeochemical Cyclesen_US
dc.relation.ispartofvolume19en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchcode300899en_US
dc.titleCoupling between ocean biota and atmospheric aerosols: Dust, dimethylsulphide, or artIfact?en_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, Griffith School of Environmenten_US
gro.rights.copyrightCopyright 2005 American Geophysical Union. Reproduced in accordance with the copyright policy of the publisher. This journal is available online, use hypertext links.en_AU
gro.date.issued2005
gro.hasfulltextFull Text


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