Show simple item record

dc.contributor.authorCropp, RA
dc.contributor.authorGabric, AJ
dc.contributor.authorMcTainsh, GH
dc.contributor.authorBraddock, RD
dc.contributor.authorTindale, N
dc.contributor.editorMheinrat Andreae
dc.date.accessioned2017-05-03T11:37:46Z
dc.date.available2017-05-03T11:37:46Z
dc.date.issued2005
dc.date.modified2009-08-27T06:51:37Z
dc.identifier.issn0886-6236
dc.identifier.doi10.1029/2004GB002436
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.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent3105580 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoen_AU
dc.publisherAmerican Geophysical Union
dc.publisher.placeWashington DC, USA
dc.publisher.urihttp://www.agu.org/journals/gl/
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom1
dc.relation.ispartofpageto21
dc.relation.ispartofissue4
dc.relation.ispartofjournalGlobal Biogeochemical Cycles
dc.relation.ispartofvolume19
dc.rights.retentionY
dc.subject.fieldofresearchAtmospheric Sciences
dc.subject.fieldofresearchGeochemistry
dc.subject.fieldofresearchOceanography
dc.subject.fieldofresearchcode0401
dc.subject.fieldofresearchcode0402
dc.subject.fieldofresearchcode0405
dc.titleCoupling between ocean biota and atmospheric aerosols: Dust, dimethylsulphide, or artIfact?
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.rights.copyright© 2005 American Geophysical Union. Reproduced in accordance with the copyright policy of the publisher. This journal is available online, use hypertext links.
gro.date.issued2005
gro.hasfulltextFull Text
gro.griffith.authorBraddock, Roger D.
gro.griffith.authorMcTainsh, Grant H.
gro.griffith.authorGabric, Albert J.
gro.griffith.authorCropp, Roger A.


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record