Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975moon...13..475j&link_type=abstract
The Moon, vol. 13, Aug. 1975, p. 475-494.
Astronomy and Astrophysics
Astronomy
5
Lunar Eclipses, Lunar Surface, Lunar Temperature, Thermophysical Properties, Astronomical Models, Density Distribution, Diurnal Variations, Permittivity, Temperature Measurement, Thermal Conductivity
Scientific paper
Comparisons of calculated diurnal and eclipse temperatures of the lunar outermost layer are made with earth-based infrared and millimeter data. The thermophysical model upon which the calculations are based incorporates variable physical properties. The thermal conductivity is a function of both density (depth) and temperature; the specific heat is a function of temperature; the density is a function of depth; and the dielectric constant and loss tangent are functions of density (depth). Laboratory measurements and Apollo-sample results are incorporated in the property data. Calculational cases are based largely upon different density profiles. The model is consistent with the data, and the comparisons of theoretical and observational temperatures are very favorable. For such comparisons, further sophistication of the thermophysical model of the outermost layer is probably not justified.
Calvert Ted A.
Jones Peter W.
Watkins J. R.
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