Aquatic Sciences Meeting, Albuquerque 2001

PC10 Ecological Fluxes: Organisms, Atmospheres, Oceans, Lakes, and Rivers

Date: Wednesday, February 14, 2001

Location: Southwest Hall

Miller, L, A, Institute of Ocean Sciences, Sidney, Canada, millerli@pac.dfo-mpo.gc.ca

Yager, P, L, University of Georgia, Athens, USA,

Erickson, K, A, Brookhaven National Laboratory, Upton, USA,

Bacle, J, , McGill University, Montreal, Canada,

Cochran, J, K, State University of New York, Stony Brook, USA,

Garneau, M, E, Universite du Quebec, Rimouski, Canada,

Gosselin, M, , Universite du Quebec, Rimouski, Canada,

Hirschberg, D, J, State University of New York, Stony Brook, USA,

Key, E, , Rosenstiel School Mar. Atmos. Sci., Miami, USA,

Klein, B, , Universite Laval, Quebec, Canada,

CARBON DISTRIBUTIONS AND FLUXES IN THE NORTH WATER, NORTHERN BAFFIN BAY, 1998 AND 1999

Carbon distributions and fractionation in the North Water region of northern Baffin Bay during 1998 (April - July) and 1999 (August - October) were highly variable, both in space and time. Consistent with biogenic drawdown, spring surface dissolved inorganic carbon (DIC) concentrations dropped by as much as 200 micromol/kg by late summer. Based on observed changes in total carbon concentrations and estimates of air-sea CO2 fluxes, we estimate a total biological and advective carbon export from the surface waters (defined by the depth of maximum annual mixing) between April and October of up to 10 mol C/m2 in some areas.

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Aquatic Sciences Meeting, Albuquerque 2001

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