Conference Papers
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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
Filter Total Items: 5547
Earthquake scenarios in South America: Application to five major cities Earthquake scenarios in South America: Application to five major cities
No abstract available.
Authors
Mabe Villar-Vega, Vitor Silva, Kishor S. Jaiswal
Damage accumulation for a two-story wood-frame building in sequences of induced earthquakes Damage accumulation for a two-story wood-frame building in sequences of induced earthquakes
In this study, a nonlinear model of a two-story multifamily wood-frame residential structure is subjected to recordings of sequences of induced earthquakes in order to quantify changes in fragility and accumulation of damage throughout multiple earthquake loadings. Initial efforts consisting of ground motion selection, building design, numerical modeling, and preliminary results are...
Authors
R Chase, A.B. Liel, Nico Luco
Revisiting the Apollo photogrammetric mapping system Revisiting the Apollo photogrammetric mapping system
The integrated photogrammetric mapping system flown on the last three Apollo lunar missions (15, 16, and 17) in 1971 and 1972 incorporated a Metric (mapping) Camera, a high-resolution Panoramic Camera, and a star camera and laser altimeter to provide support data. The U.S. Geological Survey’s Astrogeology Science Center, the Intelligent Robotics Group of the NASA Ames Research Center...
Authors
Kenneth Edmundson, Oleg Alexandrov, Brent A. Archinal, Kris J. Becker, Tammy L Becker, Jesse Mapel, Zachary M. Moratto, Ara V. Nefian, Janet Richie, Mark S. Robinson, Makayla Shepherd, John Shinaman, Ethan Smith
Multiphase hydromechanical iTOUGH2-EOS7C modeling study of underpressure development in shale during glacial loading cycles at the Bruce Nuclear Site, Ontario, Canada Multiphase hydromechanical iTOUGH2-EOS7C modeling study of underpressure development in shale during glacial loading cycles at the Bruce Nuclear Site, Ontario, Canada
A deep geologic repository (DGR) for low- and intermediate-level radioactive waste has been proposed at the Bruce nuclear site on the eastern flank of the Michigan Basin in southeastern Ontario, Canada. The repository would be placed at a depth of ~680 m, within a ~450 m-thick sequence of geologic media with extremely low porosity and permeability. The water in this section is...
Authors
Michelle R. Plampin
Streams do work: Measuring the work of low-order streams on the landscape using point clouds Streams do work: Measuring the work of low-order streams on the landscape using point clouds
The mutable nature of low-order streams makes regular updating of surface water maps necessary for accurate representation. Low-order streams make up roughly half the streams in the conterminous United States by length, and small inaccuracies in stream head location can result in significant error in stream reach, order, and density. Reliable maps of stream features are vital for...
Authors
Ethan J. Shavers, Larry V. Stanislawski
Multi-scale geophysical mapping of deep permafrost change after disturbance in interior Alaska, USA Multi-scale geophysical mapping of deep permafrost change after disturbance in interior Alaska, USA
Disturbance related to fire or hydrologic processes can cause degradation of deep (greater than 1 m) permafrost. These changes in deep permafrost have the potential to impact landscapes and infrastructure, alter the routing and distribution of surface water or groundwater, and may contribute to the flux of carbon to terrestrial and aquatic ecosystems. However, characterization of deep...
Authors
Burke J. Minsley, Benjamin R. Bloss, Brian A. Ebel, David Matthew Rey, Michelle A. Walvoord, Dana R.N. Brown, Ronald Daanen, Abraham M. Emond, M. Andy Kass, Neal J. Pastick, Bruce Wylie
Quantifying the effect of beating inferred from recorded responses of tall buildings Quantifying the effect of beating inferred from recorded responses of tall buildings
The beating phenomenon observed in recorded earthquake responses of a tall building in Japan and of two others buildings in the U.S. are examined in this paper. The objective of the paper is to discuss the significance of beating and to estimate what percentage of total shaking energy impacting a building is contributed by beating when it occurs. Beating is prominent in the prolonged...
Authors
Mehmet Celebi
Developing earthquake forecast templates for fast and effective communication Developing earthquake forecast templates for fast and effective communication
No abstract available.
Authors
Sara K. McBride, Andrew J. Michael, Anne M. Wein, Jeanne L. Hardebeck, Julia S. Becker, Sally H. Potter, Suzanne C. Perry, Morgan T. Page, Matthew Gerstenberger, Edward H. Field, Nicholas van der Elst
Airborne electromagnetic imaging of permafrost for hydrologic and infrastructure studies Airborne electromagnetic imaging of permafrost for hydrologic and infrastructure studies
Permafrost is found throughout northern latitudes, and hasfar reaching implications for natural and man-made environments including hydrologic processes, landscape dynamics, ecosystems, and infrastructure. While maps of near-surface permafrost characteristics are available, relatively little is known about permafrost distributions at depth over large areas. Here, we summarize several...
Authors
Burke J. Minsley, Abraham M. Emond, David M. Rey, Ronald Daanen
An evidence-based approach for supporting scientists communicating earthquake forecasts An evidence-based approach for supporting scientists communicating earthquake forecasts
No abstract available.
Authors
Sara K. McBride, Anne M. Wein, Julia S. Becker, Sally H. Potter, E.E. Hudson-Doyle
Probabilistic mineral resource assessment of U.S. Territories of the Caribbean Basin and adjacent areas: Progress report Probabilistic mineral resource assessment of U.S. Territories of the Caribbean Basin and adjacent areas: Progress report
The U.S. Geological Survey is partnering with the IberoAmerican Association of Geological and Mining Surveys (ASGMI) to conduct an assessment of undiscovered metallic and non-metallic resources in the Greater Antilles region. The assessment plans to provide science-based information on the geologic availability of these resources for development, land-use planning, and decision making...
Authors
Lukas Zurcher, Floyd Gray, Stephen Ludington, Frederic H. Wilson, Greta J. Orris, Mark D. Cocker, Mark E. Gettings, Timothy Hayes
Development and utility of a gene transcription panel for desert bighorn sheep (Ovis canadensis nelsoni) Development and utility of a gene transcription panel for desert bighorn sheep (Ovis canadensis nelsoni)
Respiratory disease is a key factor impacting the success of the ongoing conservation and recovery of wild sheep populations (WAFWA 2017). Although the primary pathogens involved in the bighorn sheep pneumonia complex have been identified, the wide variability in herd response following infection is not well understood (Cassirer et al. 2018). The response of populations infected with...
Authors
Lizabeth Bowen, Kathleen Longshore, Peregrine Wolff, Shannon C. Waters-Dynes, A. Keith Miles, Mike Cox, Sarah Bullock