Global oceanic chlorofluorocarbon inventory

Details Global oceanic chlorofluorocarbon inventory Global oceanic chlorofluorocarbon inventory

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3101303w&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 1, CiteID L01303

Physics

17

Global Change: Oceans (4203), Oceanography: General: Water Masses, Oceanography: Physical: General Or Miscellaneous

Scientific paper

Chlorofluorocarbons (CFCs) dissolve in the oceans, but the total quantity and spatial distribution in the oceans was not previously known. The first estimate of the global oceanic CFC-11 uptake using field measurements is calculated from WOCE (World Ocean Circulation Experiment) CFC-11 concentrations. Here we find the total oceanic uptake of 5.5 (+/-1.2) × 108 moles was about 1% of total emissions through 1994. Eighty-two percent of the CFC-11 inventory is in the upper 1000 meters. The CFC inventory distribution implies that the dominant physical air-sea exchange of gases on decadal time scales occurs due to a combination of high gas solubility in cold high latitude waters and effectiveness of the wind-driven circulation. The global inventory provides a benchmark for models simulating climate change.

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