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Digital compilation of landslide overview map of the conterminous United States Digital compilation of landslide overview map of the conterminous United States

This dataset consists of polygons enclosing areas of landslide incidence and susceptibility for the conterminous United States.
Authors
Water Resources Division U.S. Geological Survey

Debris-flow initiation experiments using diverse hydrologic triggers Debris-flow initiation experiments using diverse hydrologic triggers

Controlled debris-flow initiation experiments focused on three hydrologic conditions that can trigger slope failure: localized ground-water inflow; prolonged moderate-intensity rainfall; and high-intensity rainfall. Detailed monitoring of slope hydrology and deformation provided exceptionally complete data on conditions preceding and accompanying slope failure and debris-flow...
Authors
Mark Reid, Richard LaHusen, Richard Iverson

Depositional processes in large-scale debris-flow experiments Depositional processes in large-scale debris-flow experiments

This study examines the depositional process and characteristics of deposits of large‐scale experimental debris flows (to 15 m3) composed of mixtures of gravel (to 32 mm), sand, and mud. The experiments were performed using a 95‐m‐long, 2‐m‐wide debris‐flow flume that slopes 31°. Following release, experimental debris flows invariably developed numerous shallow (∼ 10 cm deep) surges...
Authors
J. J. Major

Digital compilation of landslide overview map of the conterminous United States Digital compilation of landslide overview map of the conterminous United States

This dataset consists of polygons enclosing areas of landslide incidence and susceptibility for the conterminous United States.
Authors
Jonathan Godt, Dorothy Radbruch-Hall

Debris-flow hazards in the United States Debris-flow hazards in the United States

No abstract available.
Authors
Lynn Highland, Stephenson Ellen, Sarah Christian, William Brown

The 1995 revision of the joint US/UK geomagnetic field models - I. Secular variation The 1995 revision of the joint US/UK geomagnetic field models - I. Secular variation

We present the methods used to derive mathematical models of global secular variation of the main geomagnetic field for the period 1985 to 2000. These secular-variation models are used in the construction of the candidate US/UK models for the Definitive Geomagnetic Reference Field at 1990, the International Geomagnetic Reference Field for 1995 to 2000, and the World Magnetic Model for...
Authors
S. Macmillan, D.R. Barraclough, J.M. Quinn, R.J. Coleman

Geographic relations of landslide distribution and assessment of landslide hazards in the Blanco, Cibuco, and Coamo basins, Puerto Rico Geographic relations of landslide distribution and assessment of landslide hazards in the Blanco, Cibuco, and Coamo basins, Puerto Rico

Landslide occurrence is common in mountainous areas of Puerto Rico where mean annual rainfall and the frequency of intense storms are high and hillslopes are steep. Each year, landslides cause extensive damage to property and occasionally result in loss of life. Landslide maps developed from 1:20,000 scale aerial photographs in combination with a computerized geographic information...
Authors
M. Larsen, A. J. Torres-Sanchez
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