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NOAA Innovators' Series Presentation: Laser Spectroscopy for Trace Gas Sensing in the Atmosphere

Date
October 21, 2020 12:00 PM to October 21, 2020 1:00 PM (ET)
Location
N/A
Contact Name
Tiffany House
Contact Phone
(301) 628-1061
Contact Email
Webinar Website
Files:
N/A

Description:

Join us online for another NOAA Innovators' Series presentation highlighting projects funded by NOAA's Technology Partnerships Office through the Small Business Innovation Research (SBIR) Program.

Speaker: Chris Hovde, Ph.D., Southwest Sciences, Inc., Principal Research Scientist

Abstract: This talk focuses on recent laser-based gas sensing developments at Southwest Sciences. In one project, techniques and instrumentation developed for eddy flux measurements were repurposed to show the proof of principle of a Mars rover that can track trace gas plumes to their source, using controlled releases of methane. The methane flux sensor is available from our licensee. A Raman based probe for nitrogen led to combustion diagnostics. Finally, a compact sensor for measuring flux of nitrogen dioxide (N2O) from soils and agricultural sites has been developed and is available for Phase III applications.

Key Takeaways:
1. Laser-based gas sensing instrumentation can be compact, rugged and sensitive.
2. Adding wind measurements allows measurement of gas flux or tracing a plume back to its source
3. Techniques exist for measuring many small, infrared-active gases

About the Speaker: Dr. Hovde received his Bachelor’s degree in Chemistry at Yale, his Ph.D. in Chemistry at UC Berkeley, and then joined Southwest Sciences, Inc. in 1990 after a post-doctoral appointment at Princeton. His research includes the development of laser-based methods for measuring fluxes and concentrations of trace gases.

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