title: Bidirectional reflectance of dry and submerged Labsphere Spectralon plaque.
abstract: We present the bidirectional reflectance of a Labsphere calibration plaque, both dry and submerged in water, at normal illumination. The measurements indicate that when submerged in water, the Labsphere calibration plaque has a higher reflectance value than when dry at viewing angles below 55 degrees . The results are presented in the form of a reflectance factor and are useful for calibrating underwater reflectance measurements.
authors.affiliation: Department of Physics, University of Miami, Miami, Florida 33124, USA. voss@physics.miami.edu
authors.forename: Kenneth J
authors.initials: KJ
authors.lastname: Voss
authors.forename: Hao
authors.initials: H
authors.lastname: Zhang