The SABER Instrument on the TIMED Mission: Data from CO2 15-μ m and 4.3μ m Channels Compared to Non-LTE Radiative Models

Details The SABER Instrument on the TIMED Mission: Data from CO2 15-μ m and 4.3μ m Channels Compared to Non-LTE Radiative Models The SABER Instrument on the TIMED Mission: Data from CO2 15-μ m and 4.3μ m Channels Compared to Non-LTE Radiative Models

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsa52a..03w&link_type=abstract

American Geophysical Union, Spring Meeting 2002, abstract #SA52A-03

Mathematics

Logic

0310 Airglow And Aurora, 0317 Chemical Kinetic And Photochemical Properties, 0340 Middle Atmosphere: Composition And Chemistry, 0360 Transmission And Scattering Of Radiation

Scientific paper

We compare selected representative data from the SABER CO2 channels at 15-μ m and 4.3-μ m with simulations from non-LTE radiative-transfer models in order to assess the adequacy of known mechanisms to account for the data. The daytime and nighttime SABER scans at 4.3 μ m differ drastically due to the presence of important daytime solar-fluorescence bands. Hence, we compare SABER scans from both daytime and nighttime and from a variety of latitudes, seasons, and solar zenith angles. We use state-of-the-art non-LTE radiative-transfer models to perform the comparison. The models are initialized with available retrieved LTE atmospheric temperature and pressure profiles from SABER, supplemented by other retrieved profiles and profiles from climatological models. Correlative data, such as lidar or HALOE temperatures will also be used as model input where possible. The role of other contributors to the 4.3-μ m channel will be considered, including OH in the nighttime mesosphere and NO+ in the daytime lower thermosphere. Comparisons with prior radiance data sets will be made where appropriate.

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