Mathematics – Logic
Scientific paper
Jul 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3313606z&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 13, CiteID L13606
Mathematics
Logic
9
Cryosphere: Sea Ice (4540), Oceanography: Physical: Air/Sea Interactions (0312, 3339), Oceanography: Biological And Chemical: Carbon Cycling (0428), Oceanography: Biological And Chemical: Gases, Geographic Location: Antarctica (4207)
Scientific paper
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.
Dacey John W. H.
Delille B.
Hintsa Eric J.
Houghton L.
Tison L. J.
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