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The detection of carbon dioxide leaks using quasi-tomographic laser absorption spectroscopy measurements in 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 point-like 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 also present a preliminary measurement.

SUBMITTER: Levine ZH

PROVIDER: S-EPMC4955779 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature

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

Levine Zachary H ZH Pintar Adam L AL Dobler Jeremy T JT Blume Nathan N Braun Michael M Scott Zaccheo T T Pernini Timothy G TG

Atmospheric measurement techniques 20160401

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 point-like sources. In this work, we consider the ability of such a system to detect and estimate the position and rate of a single po ...[more]

PMID: 27453761

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