This work was supported by the Environmental Sciences Division of the U.S. Department of Energy (under Grant DE-A105-90ER61069 to NASA’s Goddard Space Flight Center) as part of the Atmospheric Radiation Measurement (ARM) program. We are grateful to Prof. P. Austin and Drs. M. King and T. Arnold for giving us access to the FIRE archives. We also thank A. Arnéodo, B. Baker, M. Baker, J.-L. Brenguier, C. Duroure, H. Gerber, H. Isaka, D. Lavallée, S. Lovejoy, C. Meneveau, R. Pincus, D. Schertzer, F. Schmitt, Y. Tessier, and T. Warn for fruitful discussions.
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