This work was made possible with the help of technical staff of the acoustical oceanography group at the Institute of Ocean Sciences and support of the U.S. Office of Naval Research through the Marine Boundary Layer program. We are indebted to the crew of R/V Wecoma for assistance in deployment and recovery of the instrumentation. Dr. J. Edson provided the surface heat flux, V. Polonichko prepared the sidescan and sonar images, and Dr. P. Craig supplied the code for the turbulence closure model. The mixed layer floats were deployed in collaboration with Dr. E. D’Asaro and G. Dairiki; D. Veenstra assisted with the processing. We thank Drs. C. Garrett, R. Lueck, and J. Moum for helpful discussions and the reviewers for their constructive comments.
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