Advances in Quantifying Air-Sea Gas Exchange and Environmental Forcing

Publication Type  Journal Article
Year of Publication  2009
Authors  Wanninkhof, R.; Asher, W. E.; Ho, D. T.; Sweeney, C.; McGillis, W. R.
Journal Title  Annual Review of Marine Science
Volume  1
Pages  213-244
ISBN Number  1941-1405
Accession Number  ISI:000267421700010
Key Words  gas fluxes; gas transfer velocity; carbon cycle; air-sea interaction; relaxed eddy accumulation; wind-speed dependence; water-vapor transfer; sulfur-hexafluoride; transfer velocities; boundary-layer; co2 flux; concentration profiles; chemical enhancement;

The past decade has seen a substantial amount of research on air-sea gas exchange and its environmental controls. These studies have significantly advanced the understanding of processes that control gas transfer, led to higher quality field measurements, and improved estimates of the flux of climate-relevant gases between the ocean and atmosphere. This review discusses the Fundamental principles of air-sea gas transfer and recent developments in gas transfer theory, parameterizations, and measurement techniques in the context of the exchange of carbon dioxide. However, much of this discussion is applicable to any sparingly soluble, non-reactive gas. We show how the use of global variables of environmental forcing that have recently become available and gas exchange relationships that incorporate die main forcing factors will lead to improved estimates of global and regional air-sea gas fluxes based on better fundamental physical, chemical, and biological foundations.


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URL  <Go to ISI>://000267421700010
DOI  DOI 10.1146/annurev.marine.010908.163742