Measurements of air-sea gas exchange at high wind speeds in the Southern Ocean: Implications for global parameterizations

Details Measurements of air-sea gas exchange at high wind speeds in the Southern Ocean: Implications for global parameterizations Measurements of air-sea gas exchange at high wind speeds in the Southern Ocean: Implications for global parameterizations

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3316611h&link_type=abstract

Geophysical Research Letters, Volume 33, Issue 16, CiteID L16611

Mathematics

Logic

54

Atmospheric Composition And Structure: Air/Sea Constituent Fluxes (3339, 4504), Oceanography: Physical: Air/Sea Interactions (0312, 3339), Oceanography: Biological And Chemical: Carbon Cycling (0428), Oceanography: Biological And Chemical: Gases

Scientific paper

The SOLAS Air-Sea Gas Exchange (SAGE) Experiment was conducted in the western Pacific sector of the Southern Ocean. During SAGE, gas transfer velocities were determined using the 3He/SF6 dual gas tracer technique, and results were obtained at higher wind speeds (16.0 m s-1) than in previous open ocean dual tracer experiments. The results clearly reveal a quadratic relationship between wind speed and gas transfer velocity rather than a recently proposed cubic relationship. A new parameterization between wind speed and gas transfer velocity is proposed, which is consistent with previous 3He/SF6 dual tracer results from the coastal and open ocean obtained at lower wind speeds. This suggests that factors controlling air-sea gas exchange in this region are similar to those in other parts of the world ocean, and that the parameterization presented here should be applicable to the global ocean.

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