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The Southern Ocean biological response to aeolian iron deposition
Cassar, N.; Bender, M.L.; Barnett, B.A.; Fan, S.; Moxim, W.J.; Levy II, H.; Tilbrook, B. (2007). The Southern Ocean biological response to aeolian iron deposition. Science (Wash.) 317(5841): 1067-1070
In: Science (Washington). American Association for the Advancement of Science: New York, N.Y. ISSN 0036-8075, more
Peer reviewed article  

Available in  Authors 

    Aerosols; Biogeochemical cycle; Environmental impact; Organic matter; Primary production; PS, Southern Ocean [Marine Regions]; Marine

Authors  Top 
  • Cassar, N.
  • Bender, M.L.
  • Barnett, B.A.
  • Fan, S.
  • Moxim, W.J.
  • Levy II, H.
  • Tilbrook, B.

    Biogeochemical rate processes in the Southern Ocean have an important impact on the global environment. Here, we summarize an extensive set of published and new data that establishes the pattern of gross primary production and net community production over large areas of the Southern Ocean. We compare these rates with model estimates of dissolved iron that is added to surface waters by aerosols. This comparison shows that net community production, which is comparable to export production, is proportional to modeled input of soluble iron in aerosols. Our results strengthen the evidence that the addition of aerosol iron fertilizes export production in the Southern Ocean. The data also show that aerosol iron input particularly enhances gross primary production over the large area of the Southern Ocean downwind of dry continental areas.

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