Computer Science
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1220d&link_type=abstract
EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1220
Computer Science
Scientific paper
On Mars monitoring atmospheric dust as well as identifying its sources and sinks in relation with surface activity is of paramount importance especially at high latitudes. The imaging spectrometer OMEGA on board Mars Express has acquired the most comprehensive set of observations to date in the near-infrared (0.93-5.1 microns) of the southern high latitudes of Mars from mid-winter solstice (Ls=110°, December 2004) to the end of the recession at Ls=320° (November 2005) [1]. The time resolution is 3 days to one month and the spatial resolution ranges from 700m to 10 km/pixel. We use two complementary methods in order to retrieve the optical depth aer of the atmospheric dust at a reference wavelength of one micron. After cross-validation, we apply both methods on a time series of OMEGA images for global coverage of the high latitudes for martian year MY=27 between LS=220° and LS=264°. Global as well as regional investigations about atmospheric dust in relation with surface activity are made possible.
Appéré T.
Ceamanos X.
Doute Sylvain
Langevin Yves
Vincendon Mathieu
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