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Proceedings Paper

Spatial mapping of greenhouse gases using laser absorption spectrometers at local scales of interest
Author(s): Jeremy Dobler; T. Scott Zaccheo; Nathan Blume; Michael Braun; Chris Botos; Timothy G. Pernini
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Paper 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.

Paper Details

Date Published: 20 October 2015
PDF: 13 pages
Proc. SPIE 9645, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing XI, 96450K (20 October 2015); doi: 10.1117/12.2197713
Show Author Affiliations
Jeremy Dobler, Harris Corp. (United States)
T. Scott Zaccheo, Atmospheric and Environmental Research, Inc. (United States)
Nathan Blume, Harris Corp. (United States)
Michael Braun, Harris Corp. (United States)
Chris Botos, Atmospheric and Environmental Research, Inc. (United States)
Timothy G. Pernini, Atmospheric and Environmental Research, Inc. (United States)

Published in SPIE Proceedings Vol. 9645:
Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing XI
Upendra N. Singh; Doina Nicoleta Nicolae, Editor(s)

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