Statistics – Computation
Scientific paper
May 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995stin...9527700e&link_type=abstract
Final Report, 1 Jul. 1990 - 30 Jun. 1994 Michigan Univ., Ann Arbor, MI. Radiation Lab.
Statistics
Computation
Backscattering, Mars Surface, Mathematical Models, Radar Data, Radar Scattering, Radio Emission, Surface Roughness, Inversions, Planetary Geology, Power Law Bodies, Power Spectra, Spectrum Analysis, Topology
Scientific paper
The general objective for this work was to develop a theoretically and experimentally consistent explanation for the diffuse component of radar backscatter from Mars. The strength, variability, and wavelength independence of Mars' diffuse backscatter are unique among our Moon and the terrestrial planets. This diffuse backscatter is generally attributed to wavelength-scale surface roughness and to rock clasts within the Martian regolith. Through the combination of theory and experiment, the authors attempted to bound the range of surface characteristics that could produce the observed diffuse backscatter. Through these bounds they gained a limited capability for data inversion. Within this umbrella, specific objectives were: (1) To better define the statistical roughness parameters of Mars' surface so that they are consistent with observed radar backscatter data, and with the physical and chemical characteristics of Mars' surface as inferred from Mariner 9, the Viking probes, and Earth-based spectroscopy; (2) To better understand the partitioning between surface and volume scattering in the Mars regolith; (3) To develop computational models of Mars' radio emission that incorporate frequency dependent, surface and volume scattering.
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