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Proceedings Paper

Recent advances in the simulation of partly cloudy scenes
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Paper Abstract

This paper discusses recent advances in the simulation of spectral scenes with partial cloud cover. We examine the effect of broken cloud fields on the solar illumination reaching the ground. Application of aerosol retrieval techniques in the vicinity of broken clouds leads to significant over-prediction of aerosol optical depth because of the enhancement of visible illumination due to scattering of photons from clouds into clear patches. These illumination enhancement effects are simulated for a variety of broken cloud fields using the MCScene code, a high fidelity model for full optical spectrum (UV through LWIR) spectral image simulation. MCScene provides an accurate, robust, and efficient means to generate spectral scenes for algorithm validation. MCScene utilizes a Direct Simulation Monte Carlo approach for modeling 3D atmospheric radiative transfer (RT), including full treatment of molecular absorption and Rayleigh scattering, aerosol absorption and scattering, and multiple scattering and adjacency effects, as well as scattering from spatially inhomogeneous surfaces.

Paper Details

Date Published: 11 October 2010
PDF: 8 pages
Proc. SPIE 7827, Remote Sensing of Clouds and the Atmosphere XV, 78270S (11 October 2010);
Show Author Affiliations
Steven Richtsmeier, Spectral Sciences, Inc. (United States)
Robert Sundberg, Spectral Sciences, Inc. (United States)

Published in SPIE Proceedings Vol. 7827:
Remote Sensing of Clouds and the Atmosphere XV
Richard H. Picard; Klaus Schäfer; Adolfo Comeron; Michiel van Weele, Editor(s)

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