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Detailed Reference Information |
Leifer, I. and de Leeuw, G. (2006). Bubbles generated from wind-steepened breaking waves: 1. Bubble plume bubbles. Journal of Geophysical Research 111: doi: 10.1029/2004JC002673. issn: 0148-0227. |
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Measurements of bubble plumes from paddle-amplified, wind stress breaking waves were made in a large wind-wave channel during the LUMINY experiment in fresh (but not clean) water. Bubble plumes exhibited considerable variability with respect to dynamics, bubble size distribution, and physical extent. A classification scheme was developed, and time- and size-resolved bubble population distributions were calculated for each plume class. Comparison of the bubble distributions suggested that there were two primary types of bubble plumes, termed dense and diffuse on the basis of the ability to optically obscure the background. Diffuse plumes at injection were weakly size-dependent to 1000-¿m radius, with a steep decrease for larger bubbles. Dense plumes were multimodal with a steep decrease for small bubbles, a second peak at 1700--2000-¿m radius, and a steep decrease for larger bubbles. Because of this peak, large bubbles contributed to total plume bubble volume much more significantly for dense plumes than diffuse plumes. Void fractions of diffuse plumes were greater at maximum penetration than for dense plumes. Finally, the injection and rise phases were approximately equal in time. |
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Abstract |
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Keywords
Oceanography, Physical, Air/sea interactions (0312, 3339), Oceanography, Physical, Upper ocean and mixed layer processes, Oceanography, General, Instruments and techniques |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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