HR: 16:12h
AN: A44A-02    [Abstracts]
TI: Determination of Atmospheric Minor Gases from the Residuals of the Solution of the Radiative Transfer Equation
AU: Chahine, M T
EM: moustafa.t.chahine@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: * Barnet, C D
EM: chris.barnet@noaa.gov
AF: NOAA-NESDIS, 5200 Auth Road, Suitland, MD 20746-4304 United States
AU: Olsen, E T
EM: edward.t.olsen@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: Chen, L L
EM: luke.l.chen@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AB: We present an analytical method for the determination of minor gases from observations made with a spectral resolution of 1/1200, that does not necessarily resolve the spectral lines of those gases. We require that the measured radiance spectra be sensitive to variations of the concentration of active minor gases, and that this sensitivity exceeds the measurements noise. We use a radiative transfer algorithm and proceed to separate the contributions of each individual minor gas by a generalization of a basic property of the partial derivatives of the residuals (the square of difference between measured and computed radiances). We illustrate the method through application to real measurements from the Infrared Atmospheric Sounder (AIRS) currently flying on the NASA Aqua Mission.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting