Mathematics
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980m%26p....23..213g&link_type=abstract
Moon and the Planets, vol. 23, Oct. 1980, p. 213-230. European Space Agency
Mathematics
Brightness Temperature, Lunar Maria, Lunar Surface, Surface Temperature, Error Analysis, Mathematical Models, Shadows, Solar Position, Zenith
Scientific paper
A numerical model is proposed that represents the brightness temperature of ten selected sites of the moon as measured in CERGA. A theoretical approach is proposed in which the temperature is expressed as a function of the local zenith distance of the sun and a quantity depending upon the local zenith distance of the observer and the difference of their azimuths. The coefficients of this expression depend upon various integrals involving frequency function of the slopes of the lunar surface. The shadows are being qualitatively taken care of by introducing the phase angle phi. Using the observations, the most important coefficients of the formulas have been determined. The individual measurements are represented to about 2.2 deg. In the mean, the model seems to have an accuracy of about 1 deg, this number being confirmed by observations by the satellite Meteosat. A tentative frequency function of the lunar slopes consistent with the temperature model is given.
Corteggiani J.-P.
Dumoulin M.
Falin J. L.
Gay Jean
Kovalevsky Jean
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