Abstract
We discuss a realistic forward modelling and retrieval algorithm for temperature and ozone sounding developed to process data received by the planned Sun Monitor and Atmospheric Sounder (SMAS) instrument. The SMAS sensor concept employs the solar occultation technique and is primarily aiming at mesospheric profiles. The SMAS sensor provides self-calibrating transmission data, which allows the accurate derivation of profiles of molecular oxygen, molecular nitrogen, atomic oxygen, and ozone and temperature. We concentrated on data between 180 nm and 250 nm to analyse transmission data for ozone and temperature profiling. In order to enable a good and fast retrieval algorithm performance, a detailed view of the absorption behaviour of the solar irradiance in the considered wavelength region is necessary and will be presented in this work. In particular, some emphasis is placed on evaluating different fast forward modelling approximations for the SMAS channels in the Schumann-Runge bands (180–205 nm). Exemplary retrieval results for ozone are shown as well.
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Rehrl, C., Kirchengast, G. (2004). Mesospheric Temperature and Ozone Sounding by the SMAS Solar Occultation Sensor. In: Kirchengast, G., Foelsche, U., Steiner, A.K. (eds) Occultations for Probing Atmosphere and Climate. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-09041-1_29
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DOI: https://doi.org/10.1007/978-3-662-09041-1_29
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-06108-0
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