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Computerized reduction of airborne foil impactor dataA new technique for reducing data obtained from a foil impactor carried on the T-28 thunderstorm penetration aircraft is described. The technique employs a video-image processing system that was originally developed for satellite imagery and a computer-reduction program that was originally developed for determining cloud-size distributions to count and size particle impressions on the foil. This eliminates the tedious manual processing that has limited the usefulness of such devices, while at the same time improving objectivity. The technique has been applied to foil data acquired in thunderstorms in the southeastern United States during the Cooperative Huntsville Meteorological Experiment, where most of the particles were at least roughly spherical. Its usefulness for storms in which highly irregular or fragile ice particles predominate has yet to be established.
Document ID
19910071822
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Peterson, Bret A.
(South Dakota School of Mines and Technology Rapid City, SD, United States)
Musil, Dennis J.
(South Dakota School of Mines and Technology Rapid City, SD, United States)
Smith, Paul L.
(South Dakota School of Mines and Technology Rapid City, United States)
Date Acquired
August 14, 2013
Publication Date
October 1, 1991
Publication Information
Publication: Journal of Atmospheric and Oceanic Technology
Volume: 8
ISSN: 0739-0572
Subject Category
Instrumentation And Photography
Accession Number
91A56445
Funding Number(s)
CONTRACT_GRANT: NAG8-633
CONTRACT_GRANT: NSF ATM-86-20145
Distribution Limits
Public
Copyright
Other

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