Laser gas analyzers for studying kinetics of gas exchange between vegetation biosystems and atmosphere

B. G. Ageev; V. A. Kapitanov; Yu. N. Ponomarev; V. A. Vasiliev; A. I. Karapuzikov; I. V. Sherstov

doi:10.1117/12.723214

1 November 2006 Laser gas analyzers for studying kinetics of gas exchange between vegetation biosystems and atmosphere

B. G. Ageev, V. A. Kapitanov, Yu. N. Ponomarev, V. A. Vasiliev, A. I. Karapuzikov, I. V. Sherstov

Proceedings Volume 6522, Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics; 65221Q (2006) https://doi.org/10.1117/12.723214
Event: Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics, 2006, Tomsk, Russian Federation

Abstract

Specifications and examples of application of laser gas-analyzers of near- and mid-infrared ranges for diagnostics of greenhouse gases (CO₂, C₂H₄, and CH₄) emission by vegetation biosystems both under standard conditions and under impacts of natural and anthropogenic stresses are considered in the report. The gas-analyzer complex includes: 1) gas-analyzer with a multipass absorption cell based on the frequency-tunable diode laser (1600-1650 nm) for measuring sub-background methane concentrations (≤ 20 ppbV); 2) gas-analyzer based on the wave-guide CO₂-laser equipped with the intracavity acoustic detector capable of fast frequency scanning in the 9 and 10 μm generation bands and having the ethylene-sensitivity better than 1 ppbV. The technology of measurements of gas emission by plant stripped leaves and coniferous needles is described and the measurements of CO₂ and CH₄ emissions are presented.

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B. G. Ageev, V. A. Kapitanov, Yu. N. Ponomarev, V. A. Vasiliev, A. I. Karapuzikov, and I. V. Sherstov "Laser gas analyzers for studying kinetics of gas exchange between vegetation biosystems and atmosphere", Proc. SPIE 6522, Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics, 65221Q (1 November 2006); https://doi.org/10.1117/12.723214

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