Physics – Geophysics
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pggp.rept..170g&link_type=abstract
In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1986 p 170-172 (SEE N87-23341 16-91)
Physics
Geophysics
Infrared Spectra, Mars Surface, Planetary Composition, Rocks, Soils, Spectral Reflectance, Spectrum Analysis, Bidirectional Reflectance, Calibrating, Chemical Composition, Radiometers, Viking Spacecraft, Mars (Planet)
Scientific paper
Reflectance data derived from Viking Lander multispectral data were used to characterize the types of soils and blocks exposed at the landing sites and to search for evidence of relatively unaltered igneous rocks. A comprehensive effort was mounted to examine multispectral data that combines testing of camera radiometric calibrations, explicitly removing the effects of atmospheric attenuation and skylight, and quantitatively comparing the corrected data to reflectance data from laboratory materials. Bi-directional reflectances for blue, green and red channels were determined for 31 block and soil exposures at Viking landing sites.
Arvidson Ray
Bruckenthal E.
Dale-Bannister M.
Guinness E.
Singer Robert
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