Excess carbon dioxide in the Weddell Sea

Journal Article · Sun Jan 01 04:00:00 EST 1984 · Antarct. J. U.S.; (United States)

OSTI ID:6943491

Chen, C T.A.; Poisson, A

The authors recently suggested that the antarctic bottom water (AABW) contains little or no excess carbon dioxide because, as is well known, AABW was largely blocked from the air by ice when formed. The conclusion was uncertain, however, because the excess carbon dioxide results which were based on the GEOSECS (Geochemical Ocean Section Studies) and IGY (International Geophysical Year) data had a large scatter about the oxygen value masking possible small trends of increased near-bottom excess carbon dioxide. To confirm their previous results, they participated in the US - USSR. Weddell Polynya Expedition on the Soviet research vessel/icebreaker Somov between 9 October and 25 November 1981. The more precise Somov data indicated that AABW indeed contains only 6 +/- 5 micromoles per kilogram of excess carbon dioxide. The pre-industrial carbon dioxide concentration in the atmosphere was estimated to be 268 +/- 13 microatmospheres.

• Research Organization: Oregon State Univ., Corvallis
• OSTI ID: 6943491
• Journal Information: Antarct. J. U.S.; (United States), Journal Name: Antarct. J. U.S.; (United States); ISSN AJUSA
• Country of Publication: United States
• Language: English

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