Paper
8 December 1999 Comparison of a pseudo-3D radiative transfer model with Monte Carlo simulations in limb-viewing geometry for the satellite instrument ODIN/OSIRIS
Erik Griffioen, Liisa Oikarinen
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Abstract
A new pseudo-spherical 3-D radiative transfer model has been written to calculate radiances and weighting functions required by inversion algorithms to retrieve minor species profile and column amount information from limb measurements. Limb radiances obtained from the ODIN/OSIRIS (Optical Spectrograph and InfraRed Imager System) satellite instrument (to be launched Spring 2000) will be used to study depletion processes and transport dynamics in the Earth's atmosphere through the study of trace species. Model simulations have been carried out for a suite of tangent heights, wavelengths, tangent solar zenith and azimuthal angles and lambertian surface albedos.The effects of Rayleigh and aerosol scattering as well as ozone absorption have been modeled. Comparisons with a 3-D Monte-Carlo model show that there is generally less than 1 - 2% difference for single-scattering and less than 10% for multiple scattering radiances at a fraction of the computational cost.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Erik Griffioen and Liisa Oikarinen "Comparison of a pseudo-3D radiative transfer model with Monte Carlo simulations in limb-viewing geometry for the satellite instrument ODIN/OSIRIS", Proc. SPIE 3867, Satellite Remote Sensing of Clouds and the Atmosphere IV, (8 December 1999); https://doi.org/10.1117/12.373062
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KEYWORDS
Atmospheric modeling

3D modeling

Aerosols

Scattering

Atmospheric particles

Rayleigh scattering

Monte Carlo methods

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