Polarized radiance distribution measurement of skylight. II. Experiment and data

Yi Liu, Kenneth Voss

Research output: Contribution to journalArticle

56 Scopus citations

Abstract

Measurements of the skylight polarized radiance distribution were performed at different measurement sites, atmospheric conditions, and three wavelengths with our newly developed Polarization Radiance Distribution Camera System (RADS-IIP), an analyzer-type Stokes polarimeter. Three Stokes parameters of skylight (I, Q, U), the degree of polarization, and the plane of polarization are presented in image format. The Arago point and neutral lines have been observed with RADS-IIP. Qualitatively, the dependence of the intensity and polarization data on wavelength, solar zenith angle, and surface albedo is in agreement with the results from computations based on a plane-parallel Rayleigh atmospheric model.

Original languageEnglish (US)
Pages (from-to)8753-8764
Number of pages12
JournalApplied Optics
Volume36
Issue number33
DOIs
StatePublished - Nov 20 1997

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Keywords

  • Degree of polarization
  • Neutral point
  • Skylight
  • Stokes polarimeter

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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