HR: 13:55h
AN: SA33A-02    [Abstracts]
TI: Atomic Hydrogen in the Mesopause Region Derived From the SABER Instrument
AU: Martin-Torres, F J
EM: fn.f.martin-torres@larc.nasa.gov
AF: AS & M Incorporated, 107 Research Drive, Hampton, VA 23666
AU: * Mlynczak, M G
EM: m.g.mlynczak@nasa.gov
AF: NASA Langley Research Center, 100 NASA Road, Hampton, VA 23681
AU: Russell, J M
EM: james.russell@hamptonu.edu
AF: Hampton University, 23 Tyler Street, Hampton, VA 23668
AU: Marsh, D
EM: marsh@ucar.edu
AF: National Center for Atmospheric Research, 1850 Table Mesa Drive, Boulder, CO 80307
AU: Smith, A
EM: aksmith@ucar.edu
AF: National Center for Atmospheric Research, 1850 Table Mesa Drive, Boulder, CO 80307
AB: The Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instrument simultaneously measures temperature, density, ozone, and emission from the high-lying states of the hydroxyl (OH) radical. Near the mesopause the excited OH states are produced directly from the reaction of atomic hydrogen and ozone. Measurements of emission from these states can be used to derive the density of atomic hydrogen in the airglow layer of this region. SABER is now providing measurements of atomic hydrogen continuously, night and day. In this paper we review the derivation of the atomic hydrogen from SABER measurements and compare results with photochemical model calculations. The uncertainty of the H abundance due to the non-LTE rate coefficients used in the analysis of the OH airglow is also assessed.
DE: 0310 Airglow and aurora
DE: 0317 Chemical kinetic and photochemical properties
DE: 0340 Middle atmosphere: composition and chemistry
SC: SPA-Aeronomy [SA]
MN: Fall Meeting 2005