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20-micron transparency and atmospheric water vapor at the Wyoming Infrared ObservatoryThe atmospheric transparency at 19.5 and 23 microns from the Wyoming Infrared Observatory over the past six years has been examined. It is found that the transparency is largely controlled by the season. Four months: June, July, August, and September have very poor 20-micron transparency. During the rest of the year the transparency is usually quite good at 19.5 microns and moderately good at 23 microns. Using rawinsonde data and theoretical calculations for the expected infrared transparency, the measures of 20-micron transparency were calibrated in terms of atmospheric water-vapor content. The water vapor over the Wyoming Infrared Observatory is found to compare favorably with that above other proposed or developed sites: Mauna Kea, Mount Graham, and Wheeler Peak.
Document ID
19860034711
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Grasdalen, G. L.
(Wyoming Univ. Laramie, WY, United States)
Gehrz, R. D.
(Wyoming Univ. Laramie, WY, United States)
Hackwell, J. A.
(Wyoming, University Laramie, United States)
Freedman, R.
(NASA Ames Research Center; Informatics General Corp. Moffett Field, CA, United States)
Date Acquired
August 12, 2013
Publication Date
October 1, 1985
Publication Information
Publication: Astronomical Society of the Pacific, Publications
Volume: 97
ISSN: 0004-6280
Subject Category
Astronomy
Accession Number
86A19449
Distribution Limits
Public
Copyright
Other

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