Statistics – Applications
Scientific paper
May 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978icar...34..406v&link_type=abstract
Icarus, vol. 34, May 1978, p. 406-414.
Statistics
Applications
12
Albedo, Astronomical Photometry, Light Scattering, Planetary Surfaces, Scattering Functions, Astronomical Models, Charcoal, Incidence, Magnesium Oxides, Reflectance
Scientific paper
In planetary applications it is sometimes important to know the degree to which multiple scattering is influencing the photometric properties of a surface. An investigation is conducted concerning the point at which the single-scattering approximation used in the theory developed by Hapke (1963) and Irvine (1966) breaks down. It is shown that the Hapke-Irvine photometric function provides an adequate representation of the scattering properties of particulate surfaces whose geometric albedos (or normal reflectances) do not exceed 0.3. An experiment is conducted to estimate the normal reflectance below which the Hapke-Irvine equation considered provides an adequate representation of the scattering properties of a particulate surface. The investigation makes use of a set of samples which were prepared by mixing magnesium oxide and charcoal powders. The samples have a range in normal reflectance from 0.04 to 1.04.
Elliot Jim
Goguen Jay
Veverka Joe
Yang Sheng
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