Spatial mapping of greenhouse gases using laser absorption spectrometers at local scales of interest

Jeremy Dobler; T. Scott Zaccheo; Nathan Blume; Michael Braun; Chris Botos; Timothy G. Pernini

doi:10.1117/12.2197713

20 October 2015 Spatial mapping of greenhouse gases using laser absorption spectrometers at local scales of interest

Jeremy Dobler, T. Scott Zaccheo, Nathan Blume, Michael Braun, Chris Botos, Timothy G. Pernini

Proceedings Volume 9645, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing XI; 96450K (2015) https://doi.org/10.1117/12.2197713
Event: SPIE Remote Sensing, 2015, Toulouse, France

Abstract

Over the past two years a new system capable of measuring the 2-D spatial distribution of atmospheric CO₂ over areas on the order of 1 km² and time scales of a few minutes, has been developed and demonstrated. The Greenhouse gas Laser Imaging Tomography Experiment (GreenLITE) - developed under a cooperative agreement with the National Energy Technology Laboratory (NETL) of the U.S. Department of Energy (DOE) - attempts to improve monitoring capabilities of Ground Carbon Storage (GCS) sites. GreenLITE sensors are based on an intensity modulated continuous wave (IM-CW) approach developed at ITT (now part of Harris Corp.) in 2004. The GreenLITE system recently completed a remote deployment of nearly 4,000 hours at a GCS site in Illinois. It provided continuous, real-time spatial distribution maps of CO₂ via an open web-based interface from February to August 2015. In early 2015 we began work on a new implementation of GreenLITE capable of providing similar measurements over a 25 km² area and are planning to test the system over a 5 km range late summer 2015. If successful the system will be deployed in an urban environment late 2015, demonstrating the utility of real-time 2-D spatial mapping of CO₂ concentrations at this scale. This paper will review the concept for this new measurement capability, including results from the 1 km system. Ultimately, the measurement concept can be adapted to other greenhouse gases such as CH₄ and NO₂.

Citation Download Citation

Jeremy Dobler, T. Scott Zaccheo, Nathan Blume, Michael Braun, Chris Botos, and Timothy G. Pernini "Spatial mapping of greenhouse gases using laser absorption spectrometers at local scales of interest", Proc. SPIE 9645, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing XI, 96450K (20 October 2015); https://doi.org/10.1117/12.2197713

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