Physics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufm.p22a0391r&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #P22A-0391
Physics
3329 Mesoscale Meteorology, 3337 Numerical Modeling And Data Assimilation, 3346 Planetary Meteorology (5445, 5739), 5409 Atmospheres: Structure And Dynamics
Scientific paper
The entry, descent and landing (EDL) phases of the Mars Exploration Rover are sensitive to the wind, particularly below one scale height. The Mars Regional Atmospheric Modeling System is used to predict the local meteorology of high priority landing sites at horizontal scales of O(1 km) and vertical scales of O(10-100 m). The results show that sites located in highly complex topographic regions such as Valles Marineris and Gusev Crater are subject to moderate to strong slope flows and wind shear that may exceed the design tolerance of the EDL. Relatively flat regions such as Hematite are dominated by intense thermal convection. Furthermore, the results show that the mid-afternoon is generally not a favorable time in which to insert and land a spacecraft with a passive, air bag-type system with low wind speed and low wind shear tolerance.
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