Search Publications
A hydrological analysis of terrestrial and Martian gullies: Implications for liquid water on Mars
Hobbs, S. W.; Paull, D. J.; Clarke, J. D. A.
Understanding the role and amounts of liquid water involved in Martian gully formation is critical in studies of the Martian hydrosphere and climate. We performed hydrological analyses using the Manning and Darcy-Weisbach equations in order to infer flow velocities and discharge rates from channels at two gully sites in Noachis Terra, Mars. The re…
Polygon pattern geomorphometry on Svalbard (Norway) and western Utopia Planitia (Mars) using high-resolution stereo remote-sensing data
Hauber, E.; Ulrich, M.; Herzschuh, U. +2 more
Polygonal systems formed by thermal contraction cracking are complex landscape features widespread in terrestrial periglacial regions. The manner in which cracking occurs is controlled by various environmental factors and determines dimension, shape, and orientation of polygons. Analogous small-scale features are ubiquitous in Martian mid- and hig…
Ice sublimation as a geomorphic process: A planetary perspective
Mangold, Nicolas
Sublimation plays a role in the shaping of landforms of planetary surfaces where ice is present as frost, as polar caps, or in the subsurface. This review is focused primarily on the geomorphologic consequences of sublimation. A summary of the suite of landforms that have been observed on the surface of various planetary bodies and whose formation…
Linear dunes on Titan and earth: Initial remote sensing comparisons
Paillou, P.; Radebaugh, J.; Lorenz, R. +3 more
Thousands of dunes found in Cassini Radar images of the equatorial regions of Titan, a moon around Saturn, are similar in size and morphology to linear dunes on Earth. We present remote sensing images of terrestrial analogues to the dunes on Titan obtained by Landsat and radar, both at considerably higher resolution than are available at Titan, th…
Dune morphology, sand transport pathways and possible source areas in east Thaumasia Region (Mars)
Silvestro, S.; Di Achille, G.; Ori, G. G.
An aeolian system located in Aonia Terra (eastern Thaumasia region) consists of six dark dune fields. The dune pattern suggests an organized extended sand transport system, which is characterized by the presence of long sand corridors. The latter connects the different ergs with potential sources. The sand stored in the ergs is provided by layered…