Other
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3802602r&link_type=abstract
Geophysical Research Letters, Volume 38, Issue 2, CiteID L02602
Other
1
Atmospheric Composition And Structure: Air/Sea Constituent Fluxes (3339, 4504), Atmospheric Processes: Ocean/Atmosphere Interactions (0312, 4301, 4504), Biogeosciences: Carbon Cycling (4806), Atmospheric Processes: Turbulence (4490), Atmospheric Processes: Boundary Layer Processes
Scientific paper
Combination of surface water cooling and a deep ocean mixed layer generates convective eddies scaling with the depth of a mixed layer that enhances the efficiency of the air-sea transfer of CO2 (and possibly other gases). This enhancement is explained by the convective eddies disturbing the molecular diffusion layer and inducing increased turbulent mixing in the water. The enhancement can be introduced into existing formulations for calculating the air-sea exchange of gases by using an additional resistance, due to large-scale convection acting in parallel with other processes. The additional resistance is expressed here as $\frac{1}{rwc = γ$\sqrt{\frac{w*}{u*w}, where $\frac{w*}{u*w characterizes the relative role of surface shear and buoyancy forces.
Rutgersson A.
Sahlée E.
Smedman A.
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