We use remote-sensing reflectance from particulate <i>R</i><sub>rs</sub> to determine the volume absorption coefficient <i>a</i> of turbid water in the 400 < λ < 700-nm spectral region. The calculated and measured values of <i>a</i>(λ) show good agreement for 0.5 < <i>a</i> < 10 (m<sup>−1</sup>). To determine <i>R</i><sub>rs</sub> from a particulate, we needed to make corrections for remote-sensing reflectance owing to surface roughness <i>S</i><sub>rs</sub>. We determined the average spectral distribution of <i>S</i><sub>rs</sub> from the difference in total remote-sensing reflectance measured with and without polarization. The spectral shape of <i>S</i><sub>rs</sub> showed an excellent fit to theoretical formulas for glare based on Rayleigh and aerosol scattering from the atmosphere.
© 1998 Optical Society of America
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(290.7050) Scattering : Turbid media
Michael Sydor, Robert A. Arnone, Richard W. Gould, Gregory E. Terrie, Sherwin D. Ladner, and Christopher G. Wood, "Remote-Sensing Technique for Determination of the Volume Absorption Coefficient of Turbid Water," Appl. Opt. 37, 4944-4950 (1998)