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dc.contributor.authorS. Mackie, Dougen_US
dc.contributor.authorW. Boyd, Philipen_US
dc.contributor.authorMcTainsh, Granten_US
dc.contributor.authorW. Tindale, Neilen_US
dc.contributor.authorK. Westberry, Tobyen_US
dc.contributor.authorA. Hunter, Keithen_US
dc.date.accessioned2017-04-24T14:51:26Z
dc.date.available2017-04-24T14:51:26Z
dc.date.issued2008en_US
dc.date.modified2012-02-10T02:19:21Z
dc.identifier.issn15252027en_US
dc.identifier.doi10.1029/2007GC001813en_US
dc.identifier.urihttp://hdl.handle.net/10072/23473
dc.description.abstractDust is an important vector for iron supply to the ocean, which subsequently impacts ocean productivity, atmospheric CO2 concentrations, and hence global climate. Here, we synthesize the processes influencing the biogeochemistry of Australian dust and compare them with those from other Southern Hemisphere dust sources. Our observations range from soil and dust physical properties to abrasion and cloud chamber chemistry experiments to dust storms and their dispersion and deposition. We then present satellite observations of the impact of episodic dust deposition events on the productivity of low-iron oceanic waters north (i.e., low-nitrate, low-chlorophyll (LNLC)) and south (i.e., high-nitrate, low-chlorophyll (HNLC)) of Australia. Dust deposition from the largest dust storm in over 40 years did not result in iron-mediated algal blooms in either oceanic region. A comparison of Australia with other Southern Hemisphere source regions reveals that the relatively well sampled Australian system is a poor generic model. Furthermore, there are marked distinctions between Southern and Northern Hemisphere iron/dust biogeochemistry that must be recognized by modelers and included in future simulations. Better information is required on the relative role of the atmosphere and ocean on influencing iron biogeochemistry and how their relative influences might change in the future due to climate change.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.format.extent1440868 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_US
dc.publisherAmerican Geophysical Unionen_US
dc.publisher.placeUSAen_US
dc.relation.ispartofstudentpublicationNen_US
dc.relation.ispartofpagefrom1en_US
dc.relation.ispartofpageto24en_US
dc.relation.ispartofissue3en_US
dc.relation.ispartofjournalGeochemistry, Geophysics, Geosystems: G³en_US
dc.relation.ispartofvolume9en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchcode260699en_US
dc.subject.fieldofresearchcode260399en_US
dc.subject.fieldofresearchcode260401en_US
dc.titleBiogeochemistry of iron in Australian dust: From eolian uplift to marine uptakeen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.rights.copyrightCopyright 2008 American Geophysical Union. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.en_US
gro.date.issued2008
gro.hasfulltextFull Text


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