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

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 d...

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Bibliographic Details
Main Authors: Clark, R. N., Mccord, T. B.
Format: Other/Unknown Material
Language:unknown
Published: 1982
Subjects:
91
Ice cap
Online Access:http://ntrs.nasa.gov/search.jsp?R=19820037189
id ftnasantrs:oai:casi.ntrs.nasa.gov:19820037189
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19820037189 2023-05-15T16:38:12+02:00 Mars residual north polar cap - Earth-based spectroscopic confirmation of water ice as a major constituent and evidence for hydrated minerals Clark, R. N. Mccord, T. B. Unclassified, Unlimited, Publicly available Jan 10, 1982 http://ntrs.nasa.gov/search.jsp?R=19820037189 unknown http://ntrs.nasa.gov/search.jsp?R=19820037189 Accession ID: 82A20724 Copyright Other Sources 91 Journal of Geophysical Research; 87; Jan. 10 1982 ftnasantrs 2012-02-15T15:01:30Z 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. Other/Unknown Material Ice cap NASA Technical Reports Server (NTRS)
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic 91
spellingShingle 91
Clark, R. N.
Mccord, T. B.
Mars residual north polar cap - Earth-based spectroscopic confirmation of water ice as a major constituent and evidence for hydrated minerals
topic_facet 91
description 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.
format Other/Unknown Material
author Clark, R. N.
Mccord, T. B.
author_facet Clark, R. N.
Mccord, T. B.
author_sort Clark, R. N.
title Mars residual north polar cap - Earth-based spectroscopic confirmation of water ice as a major constituent and evidence for hydrated minerals
title_short Mars residual north polar cap - Earth-based spectroscopic confirmation of water ice as a major constituent and evidence for hydrated minerals
title_full Mars residual north polar cap - Earth-based spectroscopic confirmation of water ice as a major constituent and evidence for hydrated minerals
title_fullStr Mars residual north polar cap - Earth-based spectroscopic confirmation of water ice as a major constituent and evidence for hydrated minerals
title_full_unstemmed Mars residual north polar cap - Earth-based spectroscopic confirmation of water ice as a major constituent and evidence for hydrated minerals
title_sort mars residual north polar cap - earth-based spectroscopic confirmation of water ice as a major constituent and evidence for hydrated minerals
publishDate 1982
url http://ntrs.nasa.gov/search.jsp?R=19820037189
op_coverage Unclassified, Unlimited, Publicly available
genre Ice cap
genre_facet Ice cap
op_source Other Sources
op_relation http://ntrs.nasa.gov/search.jsp?R=19820037189
Accession ID: 82A20724
op_rights Copyright
_version_ 1766028493703872512

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