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Proceedings Paper

Laser gas-analyzers for studying kinetics of gas-exchange between vegetation biosystems and atmosphere
Author(s): B. G. Ageev; V. A. Kapitanov; Yu. N. Ponomarev; V. A. Vasiliev; A. I. Karapuzikov; I. V. Sherstov
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Paper Abstract

Specifications and examples of application of laser gas-analyzers of near- and mid-infrared ranges for diagnostics of greenhouse gases (C02, 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 (1600-1 650 nm) for measuring sub-background methane concentrations (≤20 ppbV); 2) gas-analyzer based on the wave-guide C02-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.

Paper Details

Date Published: 13 December 2006
PDF: 8 pages
Proc. SPIE 6580, 15th Symposium on High-Resolution Molecular Spectroscopy, 65800P (13 December 2006); doi: 10.1117/12.724943
Show Author Affiliations
B. G. Ageev, Institute of Atmospheric Optics (Russia)
V. A. Kapitanov, Institute of Atmospheric Optics (Russia)
Yu. N. Ponomarev, Institute of Atmospheric Optics (Russia)
V. A. Vasiliev, Institute of Laser Physics (Russia)
A. I. Karapuzikov, Institute of Laser Physics (Russia)
I. V. Sherstov, Institute of Laser Physics (Russia)

Published in SPIE Proceedings Vol. 6580:
15th Symposium on High-Resolution Molecular Spectroscopy
Yurii N. Ponomarev; Semen N. Mikhailenko; Leonid N. Sinitsa, Editor(s)

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