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

David T. Ho, Cliff S. Law, Murray J. Smith, Peter Schlosser, Mike Harvey, Peter Hill

Research output: Contribution to journalArticle

309 Scopus citations

Abstract

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.

Original languageEnglish (US)
Article numberL16611
JournalGeophysical Research Letters
Volume33
Issue number16
DOIs
StatePublished - Aug 1 2006
Externally publishedYes

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

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