1. Laboratory Experiments on CO 2 Gas Exchange with Wave Breaking.
- Author
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Li, Shuo, Babanin, Alexander V., Qiao, Fangli, Dai, Dejun, Jiang, Shumin, and Guan, Changlong
- Subjects
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WATER waves , *CARBON dioxide , *WIND waves , *ORBITAL velocity , *WIND speed , *WIND pressure , *OFFSHORE wind power plants - Abstract
The CO2 gas transfer velocity ( K CO 2 ) at air–sea interface is usually parameterized with the wind speed, but to a great extent it is defined by waves and wave breaking. To investigate the direct relationship between K CO 2 and waves, laboratory experiments are conducted in a wind-wave flume. Three types of waves are forced in the flume: modulational wave trains generated by a wave maker, wind waves with 10-m wind speed ranging from 4.5 to 15.5 m s−1, and (mechanically generated) modulational wave trains coupled with superimposed wind force. The wave height and wave orbital velocity are found to be well correlated with K CO 2 whereas wind speed alone cannot adequately describe K CO 2 . To reconcile the measurements, nondimensional equations are established in which gas transfer velocity is expressed as a main function of wave parameters and an additional secondary factor to account for influence of the wind. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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