NDLI: Investigation of the martian environment by infrared spectroscopy on mariner 9

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Investigation of the martian environment by infrared spectroscopy on mariner 9

Content Provider	NASA Technical Reports Server (NTRS)
Author	Conrath, B. J. Pearl, J. C. Kunde, V. G. Pirraglia, J. Prabhakara, C. Schlachman, B. Novis, W. Conrath, H. R. Lowman, P. Maguire, W.
Copyright Year	1972
Description	Measurements obtained during and after the planet-wide dust storm indicate that large diurnal variations in atmospheric temperature existed up to at least 30 km; winds inferred from the temperature fields show a strong tidal component and significant ageostrophic behavior. With the dissipation of the dust, the daily maximum in the atmospheric temperature field moved from approximately latitude -60 and late afternoon local time to near the subsolar point in latitude and time. Analysis of spectral features due to the atmospheric dust indicates as SIO2 content of 60 ? 10%, implying that substantial geochemical differentiation has occurred. Water vapor estimates indicate abundances of 10 to 20 precipitable micrometers. Between November 1971 and April 1972 no gross latitudinal or temporal dependence in the water vapor distribution was detected from the south polar region to the equator. Water vapor was not detected over the north polar regions. Surface pressure mapping was carried out from which topographic relief of nearly two pressure scale heights is inferred. Extensive regions were found where the surface pressure exceeds the triple point pressure of water.
File Size	2056157
Page Count	42
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19720023165
Archival Resource Key	ark:/13960/t02z60g9z
Language	English
Publisher Date	1972-07-01
Access Restriction	Open
Subject Keyword	Space Sciences Atmospheric Circulation Infrared Spectroscopy Dust Atmospheric Composition Diurnal Variations Surface Properties Mars Surface Mars Atmosphere Mariner 9 Space Probe Water Vapor Silicon Dioxide Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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