Publications
Filter Total Items: 7494
Natural weathering rates of silicate minerals Natural weathering rates of silicate minerals
No abstract available.
Authors
A. F. White
Is a powerful quake likely to strike in the next 30 years? Is a powerful quake likely to strike in the next 30 years?
No abstract available.
Authors
Andrew J. Michael, Stephanie L. Ross, Robert W. Simpson, Mary Lou Zoback, David P. Schwartz, Michael L. Blanpied
Preliminary volcano-hazard assessment for Great Sitkin Volcano, Alaska Preliminary volcano-hazard assessment for Great Sitkin Volcano, Alaska
Great Sitkin Volcano is a composite andesitic stratovolcano on Great Sitkin Island (51°05’ N latitude, 176°25’ W longitude), a small (14 x 16 km), circular volcanic island in the western Aleutian Islands of Alaska. Great Sitkin Island is located about 35 kilometers northeast of the community of Adak on Adak Island and 130 kilometers west of the community of Atka on Atka Island. Great...
Authors
Christopher F. Waythomas, Thomas P. Miller, Christopher J. Nye
Signatures of the seismic source in EMD-based characterization of the 1994 Northridge, California, earthquake recordings Signatures of the seismic source in EMD-based characterization of the 1994 Northridge, California, earthquake recordings
In this article we use empirical mode decomposition (EMD) to characterize the 1994 Northridge, California, earthquake records and investigate the signatures carried over from the source rupture process. Comparison of the current study results with existing source inverse solutions that use traditional data processing suggests that the EMD-based characterization contains information that...
Authors
R.R. Zhang, S. Ma, S. Hartzell
Timing of recent accelerations of Pine Island Glacier, Antarctica Timing of recent accelerations of Pine Island Glacier, Antarctica
We have used Interferometric Synthetic Aperture Radar (InSAR) data and sequential Landsat imagery to identify and temporally constrain two acceleration events on Pine Island Glacier (PIG). These two events are separated by a period of at least seven years (1987 - 1994). The change in discharge between two flux gates indicates that the majority of the increase in discharge associated with...
Authors
I. Joughin, Eric Rignot, Christine E. Rosanova, Baerbel K. Lucchitta, J. Bohlander
Debris-flow initiation from large, slow-moving landslides Debris-flow initiation from large, slow-moving landslides
In some mountainous terrain, debris flows preferentially initiate from the toes and margins of larger, deeper, slower-moving landslides. During the wet winter of 1997, we began real-time monitoring of the large, active Cleveland Corral landslide complex in California, USA. When the main slide is actively moving, small, shallow, first-time slides on the toe and margins mobilize into...
Authors
M.E. Reid, D.L. Brien, R.G. LaHusen, J. J. Roering, J. de la Fuente, S. D. Ellen
Debris-flow deposits and watershed erosion rates near southern Death Valley, CA, United States Debris-flow deposits and watershed erosion rates near southern Death Valley, CA, United States
No abstract available.
Authors
K. M. Schmidt, C.M. Menges
Remote sensing of rainfall for debris-flow hazard assessment Remote sensing of rainfall for debris-flow hazard assessment
Recent advances in remote sensing of rainfall provide more detailed temporal and spatial data on rainfall distribution. Four case studies of abundant debris flows over relatively small areas triggered during intense rainstorms are examined noting the potential for using remotely sensed rainfall data for landslide hazard analysis. Three examples with rainfall estimates from National...
Authors
G. F. Wieczorek, J. A. Coe, J. W. Godt
Geology of the MER 2003 "Elysium" candidate landing site in southeastern Utopia Planitia, Mars Geology of the MER 2003 "Elysium" candidate landing site in southeastern Utopia Planitia, Mars
The NASA Mars Exploration Rover (MER) Project has been considering a landing-site ellipse designated EP78B2 in southeastern Utopia Planitia, southwest of Elysium Mons. The site appears to be relatively safe for a MER landing site because of its predicted low wind velocities in mesoscale atmospheric circulation models and its low surface roughness at various scales as indicated by...
Authors
Kenneth L. Tanaka, Michael H. Carr, James A. Skinner, Martha S. Gilmore, Trent M. Hare
Mars Exploration Rover engineering cameras Mars Exploration Rover engineering cameras
In January 2004 the Mars Exploration Rover mission will land two rovers at two different landing sites that show possible evidence for past liquid‐water activity. The spacecraft design is based on the Mars Pathfinder configuration for cruise and entry, descent, and landing. Each of the identical rovers is equipped with a science payload of two remote‐sensing instruments that will view...
Authors
J.N. Maki, J.F. Bell, Kenneth E. Herkenhoff, S. W. Squyres, A. Kiely, M. Klimesh, M. Schwochert, T. Litwin, R. Willson, Aaron H. Johnson, M. Maimone, E. Baumgartner, A. Collins, M. Wadsworth, S.T. Elliot, A. Dingizian, D. Brown, E.C. Hagerott, L. Scherr, R. Deen, D. Alexander, J. Lorre
Causes of coral reef degradation Causes of coral reef degradation
No abstract available.
Authors
R.B. Aronson, J.F. Bruno, W.F. Precht, P.W. Glynn, C. D. Harvell, L. Kaufman, C.S. Rogers, E.A. Shinn, J.F. Valentine, J.M. Pandolfi, R.H. Bradbury, E. Sala, T.P. Hughes, K.A. Bjorndal, R.G. Cooke, D. McArdle, L. McClenachan, M.J.H. Newman, G. Paredes, R.R. Warner, J.B.C. Jackson, A.H. Baird, D.R. Bellwood, S.R. Connolly, C. Folke, R. Grosberg, O. Hoegh-Guldberg, J. Kleypas, J.M. Lough, P. Marshall, M. Nystram, S.R. Palumbi, B. Rosen, J. Roughgarden
Documentation for 2003 USGS Seismic Hazard Maps for Puerto Rico and the U.S. Virgin Islands Documentation for 2003 USGS Seismic Hazard Maps for Puerto Rico and the U.S. Virgin Islands
No abstract available.
Authors
C.S. Mueller, A.D. Frankel, M.D. Petersen, E. V. Leyendecker