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Oceanic convective mixing and the impact on air-sea gas transfer velocity
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL. (awep)
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL. (awep)
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL. (awep)
2011 (English)In: Geophysical Research Letters, ISSN 0094-8276, E-ISSN 1944-8007, Vol. 38, no 2, L02602- p.Article in journal (Refereed) Published
Abstract [en]

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 airsea 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 1rwc=g (w*qu*w , where w*u*w characterizes the relative role of surface shear andbuoyancy forces

Place, publisher, year, edition, pages
2011. Vol. 38, no 2, L02602- p.
Keyword [en]
air-sea exchange, water-side convection, transfer velocity
National Category
Meteorology and Atmospheric Sciences
Research subject
Meteorology
Identifiers
URN: urn:nbn:se:uu:diva-144305DOI: 10.1029/2010GL045581ISI: 000286517000002OAI: oai:DiVA.org:uu-144305DiVA: diva2:393002
Available from: 2011-01-28 Created: 2011-01-28 Last updated: 2017-12-11Bibliographically approved

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Rutgersson, AnnaSmedman, Ann-SofiSahlée, Erik

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