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dc.contributor.authorGabric, AJ
dc.contributor.authorCropp, RA
dc.contributor.authorMcTainsh, GH
dc.contributor.authorJohnston, BM
dc.contributor.authorButler, H
dc.contributor.authorTilbrook, B
dc.contributor.authorKeywood, M
dc.contributor.editorMeinrat O Andreae
dc.date.accessioned2017-05-03T12:56:22Z
dc.date.available2017-05-03T12:56:22Z
dc.date.issued2010
dc.date.modified2010-07-09T07:51:45Z
dc.identifier.issn0886-6236
dc.identifier.doi10.1029/2009GB003541
dc.identifier.urihttp://hdl.handle.net/10072/30850
dc.description.abstractDuring late 2002 and early 2003, southern Australia was in the grip of drought and experienced one of its most active dust storm seasons in the last 40 years with large dust plumes frequently advected over the adjacent Southern Ocean. We use meteorological records of dust activity, satellite ocean color, and aerosol optical depth data and dust transport modeling to investigate the transport and deposition of mineral dust from Australia over adjacent ocean regions and to correlate it with biological response in phytoplankton standing stock as measured by chlorophyll a concentration in 5 degree latitude bands from 40࠴o 60Ӯ Seasonal maxima in mean surface chlorophyll a of ~0.5 mg m-3 were not achieved until late January 2003 or during February in the more southerly bands, which when compared with a 9 year satellite mean climatology suggests the phenology of the bloom in 2002-2003 was atypical. Contemporaneous field data on CO2 fugacity collected on transects between Tasmania and Antarctica show that significant atmospheric CO2 drawdown occurred as far south as 60Ӡduring February 2003. Our results provide strong evidence for a large-scale natural dust fertilization event in the Australian sector of the Southern Ocean and highlight the importance of dust-derived nutrients in the marine carbon cycle of the Southern Ocean.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent1917480 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherWiley-Blackwell Publishing
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom1
dc.relation.ispartofpageto17
dc.relation.ispartofjournalGlobal Biogeochemical Cycles
dc.relation.ispartofvolume24
dc.rights.retentionY
dc.subject.fieldofresearchAtmospheric sciences
dc.subject.fieldofresearchClimatology
dc.subject.fieldofresearchGeochemistry
dc.subject.fieldofresearchOceanography
dc.subject.fieldofresearchcode3701
dc.subject.fieldofresearchcode370202
dc.subject.fieldofresearchcode3703
dc.subject.fieldofresearchcode3708
dc.titleAustralian dust storms in 2002–2003 and their impact on Southern Ocean biogeochemistry
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.rights.copyright© 2010 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.
gro.date.issued2010
gro.hasfulltextFull Text
gro.griffith.authorMcTainsh, Grant H.


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