HR: 1340h
AN: A33A-0824    [Abstracts]
TI: Validation of AIRS v5.0.14.0 CO Retrievals From INTEX-A and B
AU: * Evans, K D
EM: evans@umbc.edu
AF: JCET/UMBC, 1000 Hilltop Circle, Baltimore, MD 21250,
AU: McMillan, W
EM: mcmillan@umbc.edu
AF: JCET/UMBC, 1000 Hilltop Circle, Baltimore, MD 21250,
AU: McMillan, W
EM: mcmillan@umbc.edu
AF: Dept of Physics, 1000 Hilltop Circle, Baltimore, MD 21250,
AU: Sachse, G
EM: glen.w.sachse@nasa.gov
AF: NASA/LaRC, Aerospace Electronic Systems Division, Hampton, VA 23681,
AU: Diskin, G
EM: g.s.diskin@larc.nasa.gov
AF: NASA/LaRC, Aerospace Electronic Systems Division, Hampton, VA 23681,
AU: Barnett, C
EM: chris.barnet@noaa.gov
AF: NOAA NESDIS/STAR, E/RA1 5200 Auth Rd, Camp Springs, MD 20746,
AB: We present observations of tropospheric carbon monoxide (CO) transport obtained by the Atmospheric InfraRed Sounder (AIRS) onboard NASA's Aqua satellite during the Intercontinental chemical Transport EXperiment-North America (INTEX-A) during the summer of 2004 and INTEX-B (Phase B) during the Spring of 2006. In situ aircraft measurements acquired during these campaigns provide crucial validation of the satellite retrievals. A previous study using INTEX-A data found version 4.0.9.0 of the AIRS CO retrieval algorithm was only validatable in the mid- troposphere, 400-500mb, due to limitations of the retrieval algorithm. Here we present results using INTEX-A and B data to validate version 5.0.14.0 of the AIRS CO retrieval algorithm. This version uses nine trapezoidal perturbation functions (v4.0.9.0 used only four), provides output at similar pressures to the MOPITT standard retrievals, and uses a first guess profile consistent with MOPITT's a priori first guess. These changes remove ad- hoc post-launch error terms and improve the vertical resolution and specificity of AIRS CO retrievals.
DE: 0341 Middle atmosphere: constituent transport and chemistry (3334)
DE: 0368 Troposphere: constituent transport and chemistry
DE: 1640 Remote sensing (1855)
DE: 3334 Middle atmosphere dynamics (0341, 0342)
DE: 3360 Remote sensing
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting