Active aeolian processes on Mars: A regional study in Arabia and Meridiani Terrae
Article first published online: 22 OCT 2011
Copyright 2011 by the American Geophysical Union.
Geophysical Research Letters
Volume 38, Issue 20, October 2011
How to Cite
2011), Active aeolian processes on Mars: A regional study in Arabia and Meridiani Terrae, Geophys. Res. Lett., 38, L20201, doi:10.1029/2011GL048955., , , and (
- Issue published online: 22 OCT 2011
- Article first published online: 22 OCT 2011
- Manuscript Revised: 20 SEP 2011
- Manuscript Accepted: 20 SEP 2011
- Manuscript Received: 19 JUL 2011
 We present evidence of widespread aeolian activity in the Arabia Terra/Meridiani region (Mars), where different kinds of aeolian modifications have been detected and classified. Passing from the regional to the local scale, we describe one particular dune field in Meridiani Planum, where two ripple populations are distinguished by means of different migration rates. Moreover, a consistent change in the ripple pattern is accompanied by significant dune advancement (between 0.4–1 meter in one Martian year) that is locally triggered by large avalanche features. This suggests that dune advancement may be common throughout the Martian tropics.