Other
Scientific paper
Nov 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3421206k&link_type=abstract
Geophysical Research Letters, Volume 34, Issue 21, CiteID L21206
Other
5
Planetary Sciences: Solar System Objects: Mars, Planetary Sciences: Solid Surface Planets: Hydrology And Fluvial Processes, Hydrology: Floods
Scientific paper
We present the first application of a 2.5D hydraulic model to catastrophic floods on Mars. This model simulates flow over complex topography and incorporates flood dynamics that could not be modeled in the earlier 1D models. We apply this model to Athabasca Valles, the youngest outflow channel on Mars, investigating previous bank-full discharge estimates and utilizing the interpolated Mars Orbiter Laser Altimeter elevation map as input. We confirm that the bank-full assumption does not fit the observed landforms. Instead, the channel appears more deeply incised near the source. Flow modeling also identifies several areas of special interest, including a dry cataract that coincides with a region of predicted high erosion. However, artifacts in the elevation data strongly impacted estimated stages and velocities in other areas. More extensive connection between the flood hydraulics and observed landforms awaits improved topographic data.
Burr Devon M.
Denlinger R. P.
Keszthelyi Laszlo P.
O'Connell Daniel R. H.
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