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    CO2 deposition over the multi-year ice of the western Weddell Sea

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    2006GL026320.pdf (193.8Kb)
    Date
    2006-07-13
    Author
    Zemmelink, Hendrik J.  Concept link
    Delille, Bruno  Concept link
    Tison, Jean-Louis  Concept link
    Hintsa, Eric J.  Concept link
    Houghton, Leah A.  Concept link
    Dacey, John W. H.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/3328
    As published
    https://doi.org/10.1029/2006GL026320
    DOI
    10.1029/2006GL026320
    Abstract
    Field measurements by eddy correlation (EC) indicate an average uptake of 0.6 g CO2 m−2 d−1 by the ice-covered western Weddell Sea in December 2004. At the same time, snow that covers ice floes of the western Weddell Sea becomes undersaturated with CO2 relative to the atmosphere during early summer. Gradients of CO2 from the ice to the atmosphere do not support significant diffusive fluxes and are not strong enough to explain the observed CO2 deposition. We hypothesize that the transport of air through the snow pack is controlled by turbulence and that undersaturation of CO2 is caused by biological productivity at the ice-snow and snow-atmosphere interface. The total carbon uptake by the multi-year ice zone of the western Weddell Sea in December could have been as high as 6.6 Tg C y−1.
    Description
    Author Posting. © American Geophysical Union, 2006. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 22 (2006): L13606, doi:10.1029/2006GL026320.
    Collections
    • Biology
    • Marine Chemistry and Geochemistry (MC&G)
    Suggested Citation
    Geophysical Research Letters 33 (2006): L13606
     
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