Greenhouse gas Laser Imaging Tomography Experiment (GreenLITE)

Dobler, J. T.; Zaccheo, T. S.; Blume, Nathan; Pernini, T.; Braun, M.; Botos, Christopher

doi:10.2172/1301861

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…The differential absorption information is sent, along with atmospheric state data (temperature, pressure, relative humidity, wind speed and direction), to a cloud-based custom signal processing software package. The information is used in conjunction with a radiative transfer model (LBLRTM [3]) to convert the observed data into a dry-air mole-fraction value, in parts per million by volume (ppmv), for each 10 second measurement. The combination of measurements from the overlapping paths is used in a sparsely-sampled tomographic-like reconstruction algorithm to produce the estimate of the 2-D spatial distribution.…”

Section: Measurement Descriptionmentioning

confidence: 99%

Greenlite™: a year of carbon dioxide monitoring over paris, france, and recent progress in monitoring methane

et al. 2018

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GreenLITE™ is a ground-based laser absorption spectroscopy system capable of measuring and mapping CO2 concentrations over areas up to 25 km2. The system was deployed for COP21 as a demonstration and has now completed a year of CO2 measurements over the city of Paris, France. We will discuss lessons learned and relevant data from the year-long deployment. Recently, the system has demonstrated the same measurement capability for CH4, and results from preliminary testing are presented.

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Section: Measurement Descriptionmentioning

confidence: 99%

Greenlite™: a year of carbon dioxide monitoring over paris, france, and recent progress in monitoring methane

et al. 2018

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

et al. 2016

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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.

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

Levine¹,

Pintar²,

Dobler³

et al. 2015

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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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Greenhouse gas Laser Imaging Tomography Experiment (GreenLITE)

Cited by 3 publications

References 4 publications

Greenlite™: a year of carbon dioxide monitoring over paris, france, and recent progress in monitoring methane

Greenlite™: a year of carbon dioxide monitoring over paris, france, and recent progress in monitoring methane

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

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

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