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Proceedings Paper

Errors in laboratory measurements resulting from atmospheric absorption near 1380 nm
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Paper Abstract

Errors can occur in laboratory measurements when the response of a bandpass-filtered radiometer extends into an atmospheric absorption region. Atmospheric models, such as MODTRAN3, can be valuable tools that allow optical measurement in these regions to be accurately analyzed. Comparisons of MODTRAN3-predicted and laboratory-measured atmospheric transmittance have been made to help establish the validity of MODTRAN3 for use in modeling short-path length, low resolution, optical effects over the absorption band near 1380 nm. MODTRAN3-predicted transmittance is shown to be within 4 percent of the measured data and well within 2 percent foremost of the water band. The spectroradiometric measurement of the water-vapor absorption band, its description, and its comparison to the MODTRAN3 prediction are presented. Also presented are examples of errors that can occur when an instrument response extends into this region.

Paper Details

Date Published: 18 September 1997
PDF: 9 pages
Proc. SPIE 3117, Earth Observing Systems II, (18 September 1997); doi: 10.1117/12.278922
Show Author Affiliations
Paul R. Spyak, Optical Sciences Ctr./Univ. of Arizona (United States)
John Henry LaMarr, Optical Sciences Ctr./Univ. of Arizona (United States)
Kurtis J. Thome, Optical Sciences Ctr./Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 3117:
Earth Observing Systems II
William L. Barnes, Editor(s)

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