HR: 1340h
AN: A13D-1499    [Abstracts]
TI: Recent Results From the JPL Carbon Dioxide Laser Absorption Spectrometer
AU: * Spiers, G D
EM: gary.spiers@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, CA 91109, United States
AU: Geier, S
EM: sven.geier@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, CA 91109, United States
AU: Phillips, M W
EM: mark.w.phillips@lmco.com
AF: Lockheed Martin Coherent Technologies, 135 South Taylor Avenue, Louisville, CO 80027- 3025, United States
AU: Menzies, R T
EM: Robert.Menzies@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, CA 91109, United States
AB: Active optical sensing of atmospheric molecular species relies on measuring the differential absorption between a number of different wavelengths to determine changes in concentration of the species of interest. At JPL we have been developing an aircraft instrument that uses an Integrated Path Differential Absorption (IPDA) approach in the 2-micron spectral region for high-precision measurements of atmospheric carbon dioxide mixing ratios. The IPDA approach was first used by JPL in the detection of ozone in the 1970s. This instrument development is a response to the growing interest in the use of active optical remote sensing techniques to determine the locations of sinks and sources of carbon dioxide from a space based platform as a successor to the Orbiting Carbon Observatory (OCO) set to launch in 2008, most notably with the identification of the ASCENDS mission in the recently released Earth Science Decadal Survey. In this talk we will provide a brief overview of the aircraft instrument and present experimental results from our first two flight series. The first, carried out in July 2006, was a short series of engineering checkout flights conducted over the California desert. The second series was carried out during August 2007 over the Southern Great Plains Atmospheric Research Monitoring Site over a period of three days.
DE: 0322 Constituent sources and sinks
DE: 1610 Atmosphere (0315, 0325)
DE: 1640 Remote sensing (1855)
DE: 1694 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting