Measurement of atmospheric oxygen using long-path supercontinuum absorption spectroscopy

David M. Brown; Andrea M. Brown; Perry S. Edwards; Zhiwen Liu; C. Russell Philbrick

doi:10.1117/1.JRS.8.083557

3 September 2014 Measurement of atmospheric oxygen using long-path supercontinuum absorption spectroscopy

David M. Brown, Andrea M. Brown, Perry S. Edwards, Zhiwen Liu, C. Russell Philbrick

Author Affiliations +

Journal of Applied Remote Sensing, Vol. 8, Issue 1, 083557 (September 2014). https://doi.org/10.1117/1.JRS.8.083557

Abstract

The concentration of atmospheric oxygen is measured over a 540-m path using supercontinuum absorption spectroscopy. The absorption data compared favorably with MODTRAN™ 5 simulations of the spectra after adjusting for the differences of index of refraction of air and matching the instrument spectral resolution, as described by the effective slit width. Good agreement with the expected atmospheric oxygen concentration is obtained using a previously developed multiwavelength maximum likelihood estimation inversion algorithm. This study demonstrates the use of the SAS technique for measuring concentrations of chemical species with fine absorption structure on long-atmospheric paths.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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David M. Brown, Andrea M. Brown, Perry S. Edwards, Zhiwen Liu, and C. Russell Philbrick "Measurement of atmospheric oxygen using long-path supercontinuum absorption spectroscopy," Journal of Applied Remote Sensing 8(1), 083557 (3 September 2014). https://doi.org/10.1117/1.JRS.8.083557

Published: 3 September 2014

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KEYWORDS

Oxygen

Absorption

Absorption spectroscopy

Spectroscopic atmospheric monitoring techniques

Atmospheric laser remote sensing

Atmospheric sensing

Supercontinuum sources

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