Mariner 9 ultraviolet spectrometer experiment: Vertical distribution of ozone on Mars |
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Authors: | WM Wehrbein CW Hord CA Barth |
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Institution: | Department of Astro-Geophysics and Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309, USA |
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Abstract: | The vertical distribution of ozone in the atmosphere of Mars is computed from ultraviolet spectra obtained by the Mariner 9 spacecraft. In the Northern Hemisphere the ozone scale height is much smaller than the atmospheric scale height in midlatitudes and increases rapidly to a maximum farther north. At high latitudes (above 60°) there is no significant difference between the scale heights of ozone in the Northern (winter) Hemisphere and the Southern (summer) Hemisphere. Comparison of the ozone distribution with atmospheric temperature structure indicates that at some locations in the North, the density of water vapor increases with altitude, and the time for vertical mixing is about 3 days or more. |
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