Geomorphology of Martian meanders

Details Geomorphology of Martian meanders Geomorphology of Martian meanders

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005dps....37.6801g&link_type=abstract

American Astronomical Society, DPS meeting #37, #68.01; Bulletin of the American Astronomical Society, Vol. 37, p.1570

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Scientific paper

Morphological features of meandering landforms observed on the surface of Mars are computed and discussed. The relevance of the study pertains potentially useful hypotheses for the understanding of the evolution of Mars. Materials are digital images taken from the Mars Orbiter Laser Altimer (MOLA) and from the Viking orbiter. The methods of morphological analysis derive from tool employed in the analysis of channeled landforms, in particular tidal ones, where the unit of information (i.e. the elementary pixel) is considerably smaller than the size of the channels. The results obtained concern the physical characterization of martian meanders, including the evolution in space of widths, wavelengths and curvatures and their spectra. Evidence for a narrow distribution of sinuosities (possibly a proxy of age of erosion/deposition processes carving the meanders) and for tapering of widths (a proxy of landforming flowrates) appears to suggest the past existence on Mars of massive and relatively brief outbursts of flow. The range of duration of such processes might be speculated upon comparison with terrestrial processes.

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