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Lefèvre et al. 2004
Lefèvre, N., Watson, A.J., Olsen, A., Ríos, A.F., Pérez, F.F. and Johannessen, T. (2004). A decrease in the sink for atmospheric CO2 in the North Atlantic. Geophysical Research Letters 31: doi: 10.1029/2003GL018957. issn: 0094-8276.

Global ocean carbon models and available syntheses of the oceanic CO2 flux suggest that the North Atlantic subpolar gyre (50¿N--70¿N, 80¿W--10¿W) is a region of increasing uptake of CO2 from the atmosphere, with the oceanic partial pressure of CO2 (pCO2) increasing more slowly than the atmospheric CO2 over time. Our analysis of available CO2 data shows that, on the contrary, seawater pCO2 has increased faster than the atmosphere in recent decades, especially in summer, resulting in a decrease in uptake from the atmosphere. A decrease in the biological productivity of the region may be the underlying cause of this trend. From the observed trend we estimated a significant decrease in the annual carbon uptake in this region.

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Abstract

Keywords
Oceanography, Biological and Chemical, Carbon cycling, Global Change, Biogeochemical processes, Global Change, Oceans, Oceanography, Biological and Chemical, Gases
Journal
Geophysical Research Letters
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Publisher
American Geophysical Union
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