Mobility and topographic effects for large Valles Marineris landslides on Mars Export

@article{citeulike:5795263, abstract = {Recent experiments on dry granular flows over horizontal plane bare some similarities with large Martian landslides observed in Valles Marineris (VM). However, Martian normalized runout are twice as large as those that observed in dry granular flow experiments. Numerical simulations on theoretical 2D and real 3D topographies reconstructed from remote sensing data show that slope effects significantly reduce the shift between experimental results and Martian observation. However, topography effects are not strong enough to explain the high mobility of Martian landslides. As a result, other physical and/or geological processes should play a key role into the dynamics of Martian landslides. A new mobility is defined that makes it possible to characterize the dynamics of the flow regardless of the geometry of the released mass and of the underlying topography. }, author = {Lucas, A. and Mangeney, A.}, citeulike-article-id = {5795263}, citeulike-linkout-0 = {http://www.agu.org/pubs/crossref/2007/2007GL029835.shtml}, citeulike-linkout-1 = {http://dx.doi.org/10.1029/2007GL029835}, day = {19}, doi = {10.1029/2007GL029835}, issn = {0094-8276}, journal = {Geophysical Research Letters}, keywords = {fluvial, hrsc, landslide, mars, mass, mobility, modeling, mola, processes, remote, sensing, themis, wasting}, month = {May}, number = {10}, pages = {L10201+}, posted-at = {2009-09-17 13:51:44}, priority = {2}, title = {Mobility and topographic effects for large Valles Marineris landslides on Mars}, url = {http://dx.doi.org/10.1029/2007GL029835}, volume = {34}, year = {2007} }

TY - JOUR ID - citeulike:5795263 L3 - citeulike-article-id:5795263 N2 - Recent experiments on dry granular flows over horizontal plane bare some similarities with large Martian landslides observed in Valles Marineris (VM). However, Martian normalized runout are twice as large as those that observed in dry granular flow experiments. Numerical simulations on theoretical 2D and real 3D topographies reconstructed from remote sensing data show that slope effects significantly reduce the shift between experimental results and Martian observation. However, topography effects are not strong enough to explain the high mobility of Martian landslides. As a result, other physical and/or geological processes should play a key role into the dynamics of Martian landslides. A new mobility is defined that makes it possible to characterize the dynamics of the flow regardless of the geometry of the released mass and of the underlying topography. IS - 10 JF - Geophysical Research Letters SN - 0094-8276 TI - Mobility and topographic effects for large Valles Marineris landslides on Mars VL - 34 SP - L10201 KW - fluvial KW - hrsc KW - landslide KW - mars KW - mass KW - mobility KW - modeling KW - mola KW - processes KW - remote KW - sensing KW - themis KW - wasting AU - Lucas, A AU - Mangeney, A PY - 2007/05/19/ UR - http://dx.doi.org/10.1029/2007GL029835 ER -