The optical properties of pure water are basic input data for
many geophysical investigations such as remote sensing of surface
water and underwater radiative transfer calculations. Knowledge
of the spectral properties of components in surface water is
required for accurate interpretation of measured reflection and
attenuation spectra in terms of their concentrations. Also the
sources and sizes of errors in the basic data must be known.
Absorption measurements were done with a submersible absorption
meter in the temperature range 2.5 till 40.5°. The scattering
of pure water is recalculated using the Einstein-Smoluchowski
equation. The input for this equation is evaluated and the
temperature dependency is included. New values for the absorption
coefficient are given based on these results and analysis of data
from the literature. Absorption in the wavelength range 300-
550 nm is lower than presently used values. In the
wavelength range about 700 nm the spectrum has a different
shape. A formulation of the effect of temperature on the
absorption spectrum is given.
H. Buiteveld, J. M. H. Hakvoort, M. Donze, "The optical
properties of pure water," SPIE Proceedings on Ocean Optics
XII, edited by J. S. Jaffe, 2258, 174-183 (1994).