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Publications

Filter Total Items: 7170

Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: August 1986

No abstract available.
Authors
John B. Townshend, J.E. Papp, H.K. Rex, L.Y. Torrence

Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: July 1986

No abstract available.
Authors
John B. Townshend, J.E. Papp, H.K. Rex, L.Y. Torrence

Report on recommended list of structures for seismic instrumentation in southeastern United States

No abstract available.
Authors
Joyce B. Bagwell, Mehmet Çelebi, R. Elling, Charles Lindbergh, R.P. Maley, R. Pool, J. Radziminski, C. Simmons, D. Smits, P. Sparks, Pradeep Talwani

Antarctica: Measuring glacier velocity from satellite images

Many Landsat images of Antarctica show distinctive flow and crevasse features in the floating part of ice streams and outlet glaciers immediately below their grounding zones. Some of the features, which move with the glacier or ice stream, remain visible over many years and thus allow time-lapse measurements of ice velocities. Measurements taken from Landsat images of features on Byrd Glacier agre
Authors
Baerbel K. Lucchitta, H.M. Ferguson

Europa: Characterization and interpretation of global spectral surface units

The Voyager global multispectral mosaic of the Galilean satellite Europa (T. V. Johnson, L. A. Soderblom, J. A. Mosher, G. E. Danielson, A. F. Cook, and P. Kupferman, 1983, J. Geophys. Res. 88, 5789–5805) was analyzed to map surface units with similar optical properties (T. B. McCord, M. L. Nelson, R. N. Clark, A. Meloy, W. Harrison, T. V. Johnson, D. L. Matson, J. A. Mosher, and L. Soderblom, 198
Authors
M. L. Nelson, T. B. McCord, Roger N. Clark, T. V. Johnson, D. L. Matson, J. A. Mosher, Laurence A. Soderblom

LANDSLIDE DAMMED LAKES AT MOUNT ST. HELENS, WASHINGTON.

The collapse of the north face of Mount St. Helens on May 18, 1980, and the debris avalanche that resulted blocked outflow from Spirit Lake and Coldwater and South Fork Castle Creeks. Spirit Lake began to increase in size and lakes began to form in the canyons of Coldwater and South Fork Castle Creeks. Coldwater and Castle Lakes would have overtopped their respective blockages in late 1981 or earl
Authors
William Meyer, Martha A. Sabol, Robert Schuster

Seismically induced landslides: current research by the US Geological Survey.

We have produced a regional seismic slope-stability map and a probabilistic prediction of landslide distribution from a postulated earthquake. For liquefaction-induced landslides, in situ measurements of seismically induced pore-water pressures have been used to establish an elastic model of pore pressure generation. -from Authors
Authors
E. L. Harp, R. C. Wilson, D. K. Keefer, G. F. Wieczorek

An interpretation of induced electric currents in long pipelines caused by natural geomagnetic sources of the upper atmosphere

Electric currents in long pipelines can contribute to corrosion effects that limit the pipe's lifetime. One cause of such electric currents is the geomagnetic field variations that have sources in the Earth's upper atmosphere. Knowledge of the general behavior of the sources allows a prediction of the occurrence times, favorable locations for the pipeline effects, and long-term projections of corr
Authors
W.H. Campbell

PERSPECTIVE ON LANDSLIDE DAMS.

The most common types of mass movements that form landslide dams are rock and soil slumps and slides; mud, debris, and earth flows: and rock and debris avalanches. The most common initiation mechanisms for dam-forming landslides are excessive rainfall and snow melt, and earthquakes. Most landslide dams are remarkable short-lived. In a sample of 63 documented cases, 22 percent of the landslide dams
Authors
Robert L. Schuster, John E. Costa