Publications
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Assessment of environments for Mars Science Laboratory entry, descent, and surface operations
The Mars Science Laboratory mission aims to land a car-sized rover on Mars' surface and operate it for at least one Mars year in order to assess whether its field area was ever capable of supporting microbial life. Here we describe the approach used to identify, characterize, and assess environmental risks to the landing and rover surface operations. Novel entry, descent, and landing approaches wi
Authors
Ashwin R. Vasavada, Allen Chen, Jeffrey R. Barnes, P. Daniel Burkhart, Bruce A. Cantor, Alicia M. Dwyer-Cianciolo, Robini L. Fergason, David P. Hinson, Hilary L. Justh, David M. Kass, Stephen R. Lewis, Michael A. Mischna, James R. Murphy, Scot C.R. Rafkin, Daniel Tyler, Paul G. Withers
Geometric derivations of minimal sets of sufficient multiview constraints
Geometric interpretations of four of the most common determinant formulations of multiview constraints are given, showing that they all enforce the same geometry and that all of the forms commonly in use in the machine vision community are a subset of a more general form. Generalising the work of Yi Ma yields a new general 2 x 2 determinant trilinear and 3 x 3 determinant quadlinear. Geometric des
Authors
Orrin H. Thomas, Edward R. Oshel
Searching for evidence of hydrothermal activity at Apollinaris Mons, Mars
A multidisciplinary approach involving various remote sensing instruments is used to investigate Apollinaris Mons, a prominent volcano on Mars, as well as the surrounding plains for signs of prolonged hydrologic and volcanic, and possibly hydrothermal activity. The main findings include (1) evidence from laser altimetry indicating the large thickness (1.5–2 km at some locations) of the fan deposit
Authors
M. Ramy El Maarry, James M. Dohm, Giuseppe A. Marzo, Robin Fergason, Walter Goetz, Essam Heggy, Andreas Pack, Wojciech J. Markiewicz
Surface properties of the Mars Science Laboratory candidate landing sites: characterization from orbit and predictions
This work describes the interpretation of THEMIS-derived thermal inertia data at the Eberswalde, Gale, Holden, and Mawrth Vallis Mars Science Laboratory (MSL) candidate landing sites and determines how thermophysical variations correspond to morphology and, when apparent, mineralogical diversity. At Eberswalde, the proportion of likely unconsolidated material relative to exposed bedrock or highly
Authors
R.L. Fergason, P. R. Christensen, M.P. Golombek, T. J. Parker
Deterministic estimation of hydrological thresholds for shallow landslide initiation and slope stability models: case study from the Somma-Vesuvius area of southern Italy
Rainfall-induced debris flows involving ash-fall pyroclastic deposits that cover steep mountain slopes surrounding the Somma-Vesuvius volcano are natural events and a source of risk for urban settlements located at footslopes in the area. This paper describes experimental methods and modelling results of shallow landslides that occurred on 5–6 May 1998 in selected areas of the Sarno Mountain Range
Authors
Rex L. Baum, Jonathan W. Godt, P. De Vita, E. Napolitano
Dissolved and colloidal trace elements in the Mississippi River Delta outflow after Hurricanes Katrina and Rita
The Mississippi River delta outflow region is periodically disturbed by tropical weather systems including major hurricanes, which can terminate seasonal bottom water hypoxia and cause the resuspension of shelf bottom sediments which could result in the injection of trace elements into the water column. In the summer of 2005, Hurricanes Katrina and Rita passed over the Louisiana Shelf within a mon
Authors
Moo-Joon Shim, Peter W. Swarzenski, Alan M. Shiller
Kinematics of the Slumgullion landslide revealed by ground-based InSAR surveys
No abstract available.
Authors
W.H. Schulz, J. A. Coe, B.L. Shurtleff, J. Panosky, P. Farina, P.P. Ricci, G. Barsacchi
Assessment of shallow landslide potential using 1-D and 3-D slope stability analysis
No abstract available.
Authors
Rex L. Baum, Jonathan W. Godt, Jeffrey A. Coe, Mark E. Reid
Prototype landslide hazard map of the conterminous United States
No abstract available.
Authors
J. W. Godt, J. A. Coe, R.L. Baum, L.M. Highland, J.R. Keaton, R.J. Roth
Review of approaches for assessing the impact of climate change on landslide hazards
No abstract available.
Authors
Jeffrey A. Coe, J. W. Godt
Designs and test results for three new rotational sensors
We discuss the designs and testing of three rotational seismometer prototypes developed at the Institute of Geophysics, Academy of Sciences (Prague, Czech Republic). Two of these designs consist of a liquid-filled toroidal tube with the liquid as the proof mass and providing damping; we tested the piezoelectric and pressure transduction versions of this torus. The third design is a wheel-shaped so
Authors
P. Jedlicka, J.T. Kozak, J.R. Evans, C. R. Hutt
Effects of soil-engineering properties on the failure mode of shallow landslides
Some landslides mobilize into flows, while others slide and deposit material immediately down slope. An index based on initial dry density and fine-grained content of soil predicted failure mode of 96 landslide initiation sites in Oregon and Colorado with 79% accuracy. These material properties can be used to identify potential sources for debris flows and for slides. Field data suggest that loose
Authors
Jonathan Peter McKenna, Paul Michael Santi, Xavier Amblard, Jacquelyn Negri