OPTICAL POLARIZED EFFECTS FOR QUANTITATIVE REMOTE SENSING

• Published in: International archives of the photogrammetry, remote sensing and spatial information sciences. Vol. XLIII-B1-2020; pp. 593 - 598
• Main Authors: Yan, L., Li, Y., Mortimer, H., Zhang, R., Peltoniemi, J., Liu, X., Zhang, F.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Gottingen Copernicus GmbH 06-08-2020; Copernicus Publications
• Subjects: Azimuth; Computer simulation; Distribution; Distribution patterns; Linear polarization; Physical properties; Polarization; Rayleigh scattering; Remote sensing; Skylights; Solar radiation; Stability; Weather
• ISSN: 2194-9034; 1682-1750; 2194-9034
• DOI: 10.5194/isprs-archives-XLIII-B1-2020-593-2020

Polarization is one of the four basic physical properties of solar radiation. After the solar radiation reaches the surface of these media, it reflects, scatters or refracts, and exhibits different degrees of polarization. We use Rayleigh scattering model to get the simulation results of the sky polarization field. We use polarized fisheye camera to collect the sky polarization image, and calculate the distribution pattern of DOLP (degree of linear polarization) and AOLP (azimuth of linear polarization) of the skylight. The stability and gradual change of the degree of polarization in the zenith direction are verified, and the distribution law and daily change law of the degree of polarization in the sky are obtained. With the increase of the solar altitude angle, the degree of polarization will decrease. We also observed the skylight polarization in different weather conditions.