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AGU: Journal of Geophysical Research, Oceans

 

Index Terms

  • Oceanography: General: Continental shelf processes
  • Oceanography: General: Marginal and semienclosed seas
  • Oceanography: Biological and Chemical: Biogeochemical cycles
  • Oceanography: Biological and Chemical: Carbon cycling
  • Oceanography: Biological and Chemical: Gases
Abstract
Cited By (3)
 

Abstract

Distribution of surface carbon dioxide and air-sea exchange in the English Channel and adjacent areas

Alberto Vieira Borges

Unité d'Océanographie Chimique, Institut de Physique B5, Université de Liège, Sart Tilman, Liege, Belgium

Michel Frankignoulle

Unité d'Océanographie Chimique, Institut de Physique B5, Université de Liège, Sart Tilman, Liege, Belgium

In the present paper we report the distribution of the partial pressure of CO2 (pCO2) in surface waters along 13 transects in the English Channel, covering the four seasons. The spatial and temporal variability of pCO2 is controlled by a complex combination of primary production (from May to June), degradation of organic matter, temperature change, and freshwater inputs. Preliminary air-sea CO2 exchange computations suggest that the Channel is not a major sink of atmospheric CO2 and is probably neutral from the point of view of atmospheric coupling. This is mainly related to a relatively low export and/or burial of organic carbon and intense benthic calcification.

Received 26 July 2000; accepted 3 February 2003; published 8 May 2003.

Citation: Borges, A. V., and M. Frankignoulle (2003), Distribution of surface carbon dioxide and air-sea exchange in the English Channel and adjacent areas, J. Geophys. Res., 108(C5), 3140, doi:10.1029/2000JC000571.

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