Mathematics – Logic
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.1747h&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 9, p. 1747-1750
Mathematics
Logic
11
Global Change, Global Change: Oceans, Oceanography: General: Arctic And Antarctic Oceanography, Oceanography: Biological And Chemical: Inorganic Marine Chemistry
Scientific paper
In the northern Weddell Gyre at the prime meridian, Total TCO2 changes in the Weddell Sea Bottom Water (WSBW) have been investigated. Following a suggestion by [Poisson and Chen, 1987], the TCO2 difference at potential temperatures of 0.2°C and -0.8°C was determined using data from 1996 and 1998. No significant difference was found to similar differences for the years 1973 and 1981 reported by Poisson and Chen. Thus, over a period of 25 years an at most minor amount of anthropogenic CO2 has penetrated into the WSBW at this location. This suggests that this abyssal subpolar region is relatively unimportant for the storage of anthropogenic CO2. The same core of WSBW exhibited a marked increase of chlorofluorocarbon (CFC). For the Southern Ocean, therefore, CFCs are apparently of limited value as analogues of anthropogenic CO2, in contrast to some other ocean provinces.
Bellerby Richard G. J.
de Baar Hein J. W.
Hoppema Mario
Roether Wolfgang
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