Mars residual north polar CAP - Earth-based spectroscopic confirmation of water ice as a major constituent and evidence for hydrated minerals

Details Mars residual north polar CAP - Earth-based spectroscopic confirmation of water ice as a major constituent and evidence for hydrated minerals Mars residual north polar CAP - Earth-based spectroscopic confirmation of water ice as a major constituent and evidence for hydrated minerals

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87..367c&link_type=abstract

Journal of Geophysical Research, vol. 87, Jan. 10, 1982, p. 367-370.

Other

21

Ice, Mars Surface, Planetary Composition, Polar Caps, Absorption Spectra, Carbon Dioxide, Hydrates, Spectral Reflectance, Mars, Polar Regions, Earth-Based Observations, Spectroscopy, Water, Ice, Composition, Hydration, Minerals, Reflectance, Spectrum, Analysis, Irtm, Absorption, Viking, Experiments, Wavelengths, Infrared Thermal Mapper, Mars Atmospheric Water Detector, Simulations, Mawd, Comparisons, Carbon Dioxide

Scientific paper

A description is presented of new earth-based reflectance spectra of the Martian north residual polar cap. The spectra indicate that the composition is at least mostly water ice plus another component with a 'gray' reflectance. The other minerals in the ice cap appear to be hydrated. The data were obtained with a cooled circular variable filter spectrometer on February 20, 1978, using the 2.2-m telescope on Mauna Kea, Hawaii. It is pointed out that the identification of water ice in the north polar cap alone does not indicate that water makes up all or even most of the bulk of the cap. Kieffer (1970) has shown that a small amount of water will mask the spectral features of CO2.

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