Our thanks are given to the E. Dumas, S. Burns, D. Hines, J. French, and T. Elfouhaily for their help in system developments, calibrations, and data collection and to W. Drennan for the ASIS data. Thanks are given to the anonymous reviewers whose comments helped to improve the document considerably. This work was supported by ONR, NASA, and NOAA. Credit goes most of all to T. Crawford, the aircraft's fabricator, chief scientist, pilot, and instrument designer. His curiosity, energy, and many talents made these efforts possible and are sorely missed.
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