Portable multichannel heterodyne spectroradiometer for simultaneous atmospheric CO2 and CH4 precision column measurement in the near-infrared range

Sergei G. Zenevich; Iskander Sh. Gazizov; Dmitry V. Churbanov; Maxim V. Spiridonov; Alexander V. Rodin

doi:10.1117/12.2575506

12 November 2020 Portable multichannel heterodyne spectroradiometer for simultaneous atmospheric CO₂ and CH₄ precision column measurement in the near-infrared range

Sergei G. Zenevich, Iskander Sh. Gazizov, Dmitry V. Churbanov, Maxim V. Spiridonov, Alexander V. Rodin

Author Affiliations +

Proceedings Volume 11560, 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 1156047 (2020) https://doi.org/10.1117/12.2575506
Event: 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2020, Moscow, Russian Federation

Abstract

This work presents a laser heterodyne spectroradiometer and fundamentals of its design. The high spectral resolution spectroradiometer (λ/δλ ~ 10⁷-10⁸) is used for measurements of atmospheric СО₂ and СН₄ concentration and allows analyzing a fully resolved contour of individual rotational lines of vibrational spectra. This work is focused on a multichannel configuration of the laser heterodyne spectroradiometer and influences such technique on the instrument’s measurement characteristics.

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Sergei G. Zenevich, Iskander Sh. Gazizov, Dmitry V. Churbanov, Maxim V. Spiridonov, and Alexander V. Rodin "Portable multichannel heterodyne spectroradiometer for simultaneous atmospheric CO₂ and CH₄ precision column measurement in the near-infrared range", Proc. SPIE 11560, 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 1156047 (12 November 2020); https://doi.org/10.1117/12.2575506

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