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Proceedings Paper

Effects of uncertainties in atmospheric conditions on the accuracy of concentration measurements by the differential absorption method in the 9- to 11-um and 4.6- to 5.6-um spectral ranges
Author(s): Andrey I. Bril; Arkady P. Ivanov; Vitaliy P. Kabashnikov; Natalya V. Kuzmina; V. M. Popov; Anatoly P. Chaikovsky
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Paper Abstract

A potential source of errors at remote measurements of concentration of atmospheric gases by CO2-lasers is the incomplete knowledge of atmospheric composition and temperature during measurements. This paper gives a general expression for errors owing to approximate description of the composition of the base of a statistical atmospheric model and of separate parameters measured during laser sounding. Measurements of additional atmospheric parameters are shown can reduce considerably the uncertainty in the concentration of a gas studied. A special computer code is designed to search pairs of frequencies with minimal error in mean-path horizontal measurements by using a topographic target. The performed calculations showed that a number of referenced experiments on remote measuring of atmospheric gas concentrations by CO2-lasers were conducted at frequencies that did not provide the minimal atmospheric errors.6

Paper Details

Date Published: 19 November 1999
PDF: 9 pages
Proc. SPIE 3983, Sixth International Symposium on Atmospheric and Ocean Optics, (19 November 1999); doi: 10.1117/12.370508
Show Author Affiliations
Andrey I. Bril, B.I. Stepanov Institute of Physics (Belarus)
Arkady P. Ivanov, B.I. Stepanov Institute of Physics (Belarus)
Vitaliy P. Kabashnikov, B.I. Stepanov Institute of Physics (Belarus)
Natalya V. Kuzmina, B.I. Stepanov Institute of Physics (Belarus)
V. M. Popov, B.I. Stepanov Institute of Physics (Belarus)
Anatoly P. Chaikovsky, B.I. Stepanov Institute of Physics (Belarus)


Published in SPIE Proceedings Vol. 3983:
Sixth International Symposium on Atmospheric and Ocean Optics
Gennadii G. Matvienko; Vladimir P. Lukin, Editor(s)

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