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Record Details

Record 28 of 5634
Carbon Dioxide Laser Absorption Spectrometer (CO2LAS) Aircraft Measurements of CO2
External Online Source: hdl:2014/43786
Author and Affiliation:
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)
Abstract: The 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.
Publication Date: Aug 20, 2011
Document ID:
20150006650
(Acquired Apr 27, 2015)
Subject Category: EARTH RESOURCES AND REMOTE SENSING
Document Type: Conference Paper
Meeting Information: SPIE Optics + Photonics 2011 Conference; 20-25 Aug. 2011; San Diego, CA; United States
Meeting Sponsor: International Society for Optical Engineering; Bellingham, WA, United States
Financial Sponsor: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: 8p; In English; Original contains color and black and white illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ABSORPTION SPECTROSCOPY; CARBON DIOXIDE LASERS; LASER SPECTROSCOPY; CARBON DIOXIDE; MIXING RATIOS; BOUNDARY LAYERS; OPTICAL RADAR; TRANSMITTERS; RECEIVERS
Other Descriptors: LIDAR; HETERODYNE; LASER
Availability Source: Other Sources
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