Bi-directional reflectance study on particulate layers: Effects of pore liquid absorption coefficient

Kenneth J. Voss, Hao Zhang

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

We have made bi-directional reflectance distribution function (BRDF) measurements on particulate layers wetted by absorbing liquids. The measurement results indicate that the BRDF tends to become more Lambertian as the interstitial pore liquid becomes more absorbing. The directional hemispherical reflectance, or albedo, of such a layer decreases nonlinearly with a wetting liquid's absorption coefficient. This behavior may be fit by two empirical relationships which independently treat the reflectance from the front surface and reflectance from the bulk material.

Original languageEnglish (US)
Pages (from-to)405-413
Number of pages9
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume105
Issue number3
DOIs
StatePublished - Jul 1 2007

Keywords

  • Ocean optics
  • Reflectance

ASJC Scopus subject areas

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy

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