Laser absorption spectroscopy: method for monitoring complex trace gas mixtures

1976 ◽  
Vol 10 (12) ◽  
pp. 1134-1139 ◽  
Author(s):  
Byron D. Green ◽  
Jeffrey I. Steinfeld
Keyword(s):  
Absorption Spectroscopy ◽  
Gas Mixtures ◽  
Spectroscopy Method ◽  
Trace Gas ◽  
Laser Absorption Spectroscopy ◽  
Laser Absorption

New perspectives in ultrasensitive trace gas monitoring by cavity-enhanced laser absorption spectroscopy

1999 ◽  
Author(s):  
Alexander A. Kachanov ◽  
Daniele Romanini ◽  
Marc Chenevier ◽  
A. Garnache ◽  
Frederic Stoeckel
Keyword(s):  
Absorption Spectroscopy ◽  
Trace Gas ◽  
Laser Absorption Spectroscopy ◽  
Gas Monitoring ◽  
Laser Absorption

scholarly journals The detection of carbon dioxide leaks using quasi-tomographic laser absorption spectroscopy measurements in variable wind

2015 ◽  
Vol 8 (11) ◽  
pp. 12297-12327
Author(s):  
Z. H. Levine ◽  
A. L. Pintar ◽  
J. Dobler ◽  
N. Blume ◽  
M. Braun ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Absorption Spectroscopy ◽  
Single Point ◽  
Trace Gas ◽  
Laser Absorption Spectroscopy ◽  
Multiple Sources ◽  
Preliminary Measurement ◽  
Laser Absorption ◽  
Constant Rate ◽  
Variable Wind

Abstract. Laser Absorption Spectroscopy (LAS) has been used over the last several decades for the measurement of trace gasses in the atmosphere. For over a decade, LAS measurements from multiple sources and tens of retroreflectors have been combined with sparse-sample tomography methods to estimate the 2-D distribution of trace gas concentrations and underlying fluxes from pointlike sources. In this work, we consider the ability of such a system to detect and estimate the position and rate of a single point leak which may arise as a failure mode for carbon dioxide storage. The leak is assumed to be at a constant rate giving rise to a plume with a concentration and distribution that depend on the wind velocity. We demonstrate the ability of our approach to detect a leak using numerical simulation and a preliminary measurement.

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