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Detailed Reference Information |
Mertens, C.J., Mlynczak, M.G., López-Puertas, M., Wintersteiner, P.P., Picard, R.H., Winick, J.R., Gordley, L.L. and Russell, J.M. (2001). Retrieval of mesospheric and lower thermospheric kinetic temperature from measurements of CO2 15 µm Earth Limb Emission under non-LTE conditions. Geophysical Research Letters 28: doi: 10.1029/2000GL012189. issn: 0094-8276. |
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We present a new algorithm for the retrieval of kinetic temperature in the terrestrial mesosphere and lower thermosphere from measurements of CO2 15 &mgr;m earth limb emission. Non-local-thermodynamic-equilibrium (non-LTE) processes are rigorously included in the new algorithm, necessitated by the prospect of satellite-based limb radiance measurements to be made from the TIMED/SABER platform in the near future between 15 km and 120 km tangent altitude. The algorithm requires 20 seconds to retrieve temperature to better than 3 K accuracy on a desktop computer, easily enabling its use in operational processing of satellite data. We conclude this letter with a study of the sensitivity of the retrieved temperatures to parameters used in the non-LTE models, including sensitivity to the rate constant for physical quenching of CO2 bending mode vibrations by atomic oxygen. ¿ 2001 American Geophysical Union |
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Abstract |
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Keywords
Atmospheric Composition and Structure, Chemical kinetic and photochemical properties, Atmospheric Composition and Structure, Pressure, density, and temperature, Meteorology and Atmospheric Dynamics, Radiative processes, Meteorology and Atmospheric Dynamics, Remote sensing |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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