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Proceedings Paper

Aerosol parameter estimation through atmospheric polarization observation with the different observation angles
Author(s): K. Arai; Yui Nishimura
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Paper Abstract

A method for aerosol refractive index estimation with ground based polarization measurement data is proposed. The proposed method uses a dependency of refractive index on p and s polarized down welling solar diffuse irradiance. It is much easy to measure p and s polarized irradiance on the ground with a portable measuring instrument rather than solar direct, diffuse and aureole measurements. Through theoretical and simulation studies, it is found that the proposed method show a good estimation accuracy of refractive index using measured down welling p and s polarized irradiance data with a measuring instrument pointing to the direction which is perpendicular to the sun in the principal plane. Field experimental results also show a validity of the proposed method in comparison to the estimated results from the conventional method with solar direct, diffuse and aureole measurement data.

Paper Details

Date Published: 11 August 2009
PDF: 9 pages
Proc. SPIE 7461, Polarization Science and Remote Sensing IV, 746106 (11 August 2009); doi: 10.1117/12.824669
Show Author Affiliations
K. Arai, Saga Univ. (Japan)
Yui Nishimura, Saga Univ. (Japan)

Published in SPIE Proceedings Vol. 7461:
Polarization Science and Remote Sensing IV
Joseph A. Shaw; J. Scott Tyo, Editor(s)

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