Mesospheric Atomic Hydrogen Deduced From TIMED Observations of the Meinel Airglow and the Empirical ETON Model

Details Mesospheric Atomic Hydrogen Deduced From TIMED Observations of the Meinel Airglow and the Empirical ETON Model Mesospheric Atomic Hydrogen Deduced From TIMED Observations of the Meinel Airglow and the Empirical ETON Model

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa51b1941n&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SA51B-1941

Computer Science

Sound

[0340] Atmospheric Composition And Structure / Middle Atmosphere: Composition And Chemistry, [3360] Atmospheric Processes / Remote Sensing

Scientific paper

At night, the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instrument aboard the Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) spacecraft measures emission from vibrationally excited OH produced from the reaction of atomic hydrogen and ozone. The SABER atomic hydrogen product is deduced using a chemical kinetic model incorporating the latest laboratory rate coefficients and Einstein transition values. Another approach is to use the empirical model of the OH vibrational distribution derived from the ETON rocket experiments, which related airglow emissions to in situ measurements of atomic oxygen. Using the ETON model, we calculate the rate of the reaction between H and O3 from the SABER measurements of the Meinel Band emission. This combined with the SABER measurement of nighttime O3 yields the atomic hydrogen density. We will present our derived atomic hydrogen concentrations and compare to the SABER atomic hydrogen product and with global climatology.

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