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Carbon Dioxide Laser Absorption Spectrometer (CO2LAS) Aircraft Measurements of CO2The Jet Propulsion Laboratory Carbon Dioxide Laser Absorption Spectrometer (CO2LAS) utilizes Integrated Path Differential Absorption (IPDA) at 2.05 microns to obtain CO2 column mixing ratios weighted heavily in the boundary layer. CO2LAS employs a coherent detection receiver and continuous-wave Th:Ho:YLF laser transmitters with output powers around 100 milliwatts. An offset frequency-locking scheme coupled to an absolute frequency reference enables the frequencies of the online and offline lasers to be held to within 200 kHz of desired values. We describe results from 2009 field campaigns when CO2LAS flew on the Twin Otter. We also describe spectroscopic studies aimed at uncovering potential biases in lidar CO2 retrievals at 2.05 microns.
Document ID
20150006650
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Christensen, Lance E.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Spiers, Gary D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Menzies, Robert T.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Jacob, Joseph C.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hyon, Jason
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
April 24, 2015
Publication Date
August 20, 2011
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: SPIE Optics + Photonics 2011 Conference
Location: San Diego, CA
Country: United States
Start Date: August 20, 2011
End Date: August 25, 2011
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Other
Keywords
Lidar
laser
heterodyne

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