Publications
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Airport geomagnetic surveys in the United States Airport geomagnetic surveys in the United States
The Federal Aviation Administration (FAA) and the United States military have requirements for design, location, and construction of compass calibration pads (compass roses), these having been developed through collaboration with US Geological Survey (USGS) personnel. These requirements are detailed in the FAA Advisory Circular AC 150/5300-13, Appendix 4, and in various military...
Authors
A. Berarducci
Map showing features and displacements of the Scenic Drive landslide, La Honda, California, during the period March 31, 2005–November 5, 2006 Map showing features and displacements of the Scenic Drive landslide, La Honda, California, during the period March 31, 2005–November 5, 2006
The Scenic Drive landslide in La Honda, San Mateo County, California began movement during the El Niño winter of 1997-98. Recurrent motion occurred during the mild El Niño winter of 2004-2005 and again during the winter of 2005-06. This report documents the changing geometry and motion of the Scenic Drive landslide in 2005-2006, and it documents changes and persistent features that we...
Authors
Ray E. Wells, Michael J. Rymer, Carol S. Prentice, Karen L. Wheeler
Preliminary Assessment of Landslides Along the Florida River Downstream from Lemon Reservoir, La Plata County, Colorado Preliminary Assessment of Landslides Along the Florida River Downstream from Lemon Reservoir, La Plata County, Colorado
Nearly two-dozen shallow landslides were active during spring 2005 on a hillside located along the east side of the Florida River about one kilometer downstream from Lemon Reservoir in La Plata County, southwestern Colorado. Landslides on the hillside directly threaten human safety, residential structures, a county roadway, utilities, and the Florida River, and indirectly threaten...
Authors
William H. Schulz, Jeffrey A. Coe, William L. Ellis, John D. Kibler
Modeling regional initiation of rainfall-induced shallow landslides in the eastern Umbria Region of central Italy Modeling regional initiation of rainfall-induced shallow landslides in the eastern Umbria Region of central Italy
We model the rainfall-induced initiation of shallow landslides over a broad region using a deterministic approach, the Transient Rainfall Infiltration and Grid-based Slope-stability (TRIGRS) model that couples an infinite-slope stability analysis with a one-dimensional analytical solution for transient pore pressure response to rainfall infiltration. This model permits the evaluation of...
Authors
D. Salciarini, J. W. Godt, W. Z. Savage, P. Conversini, R.L. Baum, J. A. Michael
Are migrating raptors guided by a geomagnetic compass? Are migrating raptors guided by a geomagnetic compass?
We tested whether routes of raptors migrating over areas with homogeneous topography follow constant geomagnetic courses more or less closely than constant geographical courses. We analysed the routes taken over land of 45 individual raptors tracked by satellite-based radiotelemetry: 25 peregrine falcons, Falco peregrinus, on autumn migration between North and South America, and seven...
Authors
Kasper Thorup, Mark R. Fuller, T. Alerstam, M. Hake, N. Kjellen, R. Standberg
Southern California — Wildfires and debris flows Southern California — Wildfires and debris flows
Wildland fires are inevitable in the western United States. Expansion of man-made developments into fire-prone wildlands has created situations where wildfires can destroy lives and property, as can the flooding and debris flows that are common in the aftermath of the fires. Fast-moving, highly destructive debris flows triggered by intense rainfall are one of the most dangerous post-fire...
Authors
Water Resources Division U.S. Geological Survey
Southern California landslides-an overview Southern California landslides-an overview
Southern California lies astride a major tectonic plate boundary defined by the San Andreas Fault and numerous related faults that are spread across a broad region. This dynamic tectonic environment has created a spectacular landscape of rugged mountains and steep-walled valleys that compose much of the region’s scenic beauty. Unfortunately, this extraordinary landscape also presents...
Authors
Water Resources Division U.S. Geological Survey
A NOAA-USGS demonstration flash-flood and debris-flow early-warning system A NOAA-USGS demonstration flash-flood and debris-flow early-warning system
No abstract available.
Authors
Water Resources Division U.S. Geological Survey
NOAA-USGS Debris-Flow Warning System - Final Report NOAA-USGS Debris-Flow Warning System - Final Report
Landslides and debris flows cause loss of life and millions of dollars in property damage annually in the United States (National Research Council, 2004). In an effort to reduce loss of life by debris flows, the National Oceanic and Atmospheric Administration's (NOAA) National Weather Service (NWS) and the U.S. Geological Survey (USGS) operated an experimental debris-flow prediction and...
Authors
Map showing features and displacements of the Scenic Drive landslide, La Honda, California, during the period March 31-May 7, 2005 Map showing features and displacements of the Scenic Drive landslide, La Honda, California, during the period March 31-May 7, 2005
No abstract available.
Authors
Ray E. Wells, Michael J. Rymer, Carol S. Prentice, Karen L. Wheeler
Hydrologic monitoring of landslide-prone coastal bluffs near Edmonds and Everett, Washington, 2001-2004 Hydrologic monitoring of landslide-prone coastal bluffs near Edmonds and Everett, Washington, 2001-2004
No abstract available.
Authors
Rex L. Baum, Jonathan P. McKenna, Jonathan W. Godt, Edwin L. Harp, Steven R. McMullen
Landslide hazards at La Conchita, California Landslide hazards at La Conchita, California
No abstract available.
Authors
Randall W. Jibson