Computer Science
Scientific paper
May 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978kosis..16..443k&link_type=abstract
Kosmicheskie Issledovaniia, vol. 16, May-June 1978, p. 443-452. In Russian.
Computer Science
Density Measurement, Mars Surface, Polarimetry, Radar Measurement, Soils, Centimeter Waves, Chemical Composition, Density Distribution, Electrical Resistivity, Mars Probes, Permittivity, Polarization (Waves)
Scientific paper
The density of Martian soil in the layer to a depth of 1 meter is estimated from results of earth-based radar measurements performed at a wavelength of 3.8 cm and radio polarization measurements carried out aboard the Mars 3 and 5 probes at a wavelength of 3.4 cm. Significant local variations in soil density are observed, and an average density of 1.37 (+ or - 0.33) g/cu cm is obtained from all the data. The mean value determined for the relative loss tangent in Martian soil material is shown to correspond to silicate rocks of acidic or neutral composition. A map of the permittivity and density distribution of the soil in selected areas on Mars is presented.
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