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Distribution of surface seawater partial CO2 pressure in the English Channel and in the Southern Bight of the North Sea
Frankignoulle, M.; Bourge, I.; Canon, C.; Dauby, P. (1996). Distribution of surface seawater partial CO2 pressure in the English Channel and in the Southern Bight of the North Sea. Cont. Shelf Res. 16(3): 381-395
In: Continental Shelf Research. Pergamon Press: Oxford; New York. ISSN 0278-4343, more
Peer reviewed article  

Available in Authors 
    VLIZ: Open Repository 278799 [ OMA ]

Keyword
    Marine

Authors  Top 
  • Frankignoulle, M., more
  • Bourge, I., more
  • Canon, C.
  • Dauby, P., more

Abstract
    The concentrations of dissolved CO2, dissolved oxygen and chlorophyll have been determined in the surface seawater of the English Channel and of the Southern Eight of the North Sea in June 1992, April-May 1993 and September-October 1993. The partial pressure of CO2(pCO(2)) displays large spatial and temporal variations ranging from 100 ppm up to 670 ppm. The relationship between seawater pCO(2) and chlorophyll distribution is discussed and compared with data recently obtained in the North Atlantic by A. J. Watson, C. Robinson, J. E. Robertson, P. J. le B. Williams and J. R. Fasham (1991) Nature, 350, 50-53. Air-sea CO2 fluxes have been calculated from wind speed and pCO(2) data and, due to the combined effect of both of those parameters, the flux can be as high as about 150 mmol m(-2) d(-1). This implies that shelves could play an appreciable role in the global C budget. Further extended CO2 level measurements should be made to improve flux estimations for the coastal zone on a global basis.

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