Conference Papers
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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.
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On the use of wave parameterizations and a storm impact scaling model in National Weather Service Coastal Flood and decision support operations
National Weather Service (NWS) Weather Forecast Offices (WFO) are responsible for issuing coastal flood watches, warnings, advisories, and local statements to alert decision makers and the general public when rising water levels may lead to coastal impacts such as inundation, erosion, and wave battery. Both extratropical and tropical cyclones can generate the prerequisite rise in water level to se
Authors
Anthony Mignone, H. Stockdon, M. Willis, J.W. Cannon, R. Thompson
Parameter estimation method and updating of regional prediction equations for ungaged sites in the desert region of California
The U.S. Geological Survey (USGS) is currently updating at-site flood frequency estimates for USGS streamflow-gaging stations in the desert region of California. The at-site flood-frequency analysis is complicated by short record lengths (less than 20 years is common) and numerous zero flows/low outliers at many sites. Estimates of the three parameters (mean, standard deviation, and skew) required
Authors
Nancy A. Barth, Andrea G. Veilleux
Report on progress at the Center for Engineering Strong Motion Data (CESMD)
Strong-motion data of engineering and scientific importance from the United States and other seismically active countries are served through the Center for Engineering Strong Motion Data (CESMD) at www.strongmotioncenter.org. Recently, the CESMD staff, with cooperation from colleagues at international strong-motion seismic networks, has disseminated strong-motion data from significant earthquakes
Authors
H. Haddadi, A. Shakal, M. Huang, J. Parrish, C. Stephens, William U. Savage, William S. Leith
ShakeMap Atlas 2.0: an improved suite of recent historical earthquake ShakeMaps for global hazard analyses and loss model calibration
We introduce the second version of the U.S. Geological Survey ShakeMap Atlas, which is an openly-available compilation of nearly 8,000 ShakeMaps of the most significant global earthquakes between 1973 and 2011. This revision of the Atlas includes: (1) a new version of the ShakeMap software that improves data usage and uncertainty estimations; (2) an updated earthquake source catalogue that include
Authors
D. Garcia, R.T. Mah, K. L. Johnson, M.G. Hearne, K. D. Marano, K.-W. Lin, D. J. Wald
The effects of feral cats on insular wildlife: the Club-Med syndrome
Domestic cats have been introduced to many of the world‘s islands where
they have been particularly devastating to insular wildlife which, in most
cases, evolved in the absence of terrestrial predatory mammals and feline
diseases. We review the effects of predation, feline diseases, and the life
history characteristics of feral cats and their prey that have contributed to the
extirpation and
Authors
Steve C. Hess, Raymond M. Danner
The GED4GEM project: development of a Global Exposure Database for the Global Earthquake Model initiative
In order to quantify earthquake risk of any selected region or a country of the world within the Global Earthquake Model (GEM) framework (www.globalquakemodel.org/), a systematic compilation of building inventory and population exposure is indispensable. Through the consortium of leading institutions and by engaging the domain-experts from multiple countries, the GED4GEM project has been working t
Authors
P. Gamba, D. Cavalca, K. S. Jaiswal, C. Huyck, H. Crowley
Time lapse photography as an approach to understanding glide avalanche activity
Avalanches resulting from glide cracks are notoriously difficult to forecast, but are a recurring problem for numerous avalanche forecasting programs. In some cases glide cracks are observed to open and then melt away in situ. In other cases, they open and then fail catastrophically as large, full-depth avalanches. Our understanding and management of these phenomena are currently limited. It is th
Authors
Jordy Hendrikx, Erich H. Peitzsch, Daniel B. Fagre
Timing of wet snow avalanche activity: An analysis from Glacier National Park, Montana, USA.
Wet snow avalanches pose a problem for annual spring road opening operations along the Going-to-the-Sun Road (GTSR) in Glacier National Park, Montana, USA. A suite of meteorological metrics and snow observations has been used to forecast for wet slab and glide avalanche activity. However, the timing of spring wet slab and glide avalanches is a difficult process to forecast and requires new capabil
Authors
Erich H. Peitzsch, Jordy Hendrikx, Daniel B. Fagre
Ultra-high resolution four dimensional geodetic imaging of engineered structures for stability assessment
We used ground-based Tripod LiDAR (T-LiDAR) to assess the stability of two engineered structures: a bridge spanning the San Andreas fault following the M6.0 Parkfield earthquake in Central California and a newly built coastal breakwater located at the Kaumālapa`u Harbor Lana'i, Hawaii. In the 10 weeks following the earthquake, we found that the surface under the bridge shifted 7.1 cm with an addit
Authors
Gerald W. Bawden, Sandra Bond, J. H. Podoski, O. Kreylos, L. H. Kellogg
Use of electromagnetic induction methods to monitor remediation at the University of Connecticut landfill: 2004–2011
Time‐lapse geophysical surveys using frequency‐domain electromagnetics (FDEM) can indirectly measure time‐varying hydrologic parameters such as fluid saturation or solute concentration. Monitoring of these processes provides insight into aquifer properties and the effectiveness of constructed controls (such as leachate interceptor trenches), as well as aquifer responses to natural or induced stres
Authors
Carole D. Johnson, Eric A. White, Peter K. Joesten
VS30 – A site-characterization parameter for use in building Codes, simplified earthquake resistant design, GMPEs, and ShakeMaps
VS30, defined as the average seismic shear-wave velocity from the surface to a depth of 30 meters, has found wide-spread use as a parameter to characterize site response for simplified earthquake resistant design as implemented in building codes worldwide. VS30 , as initially introduced by the author for the US 1994 NEHRP Building Code, provides unambiguous definitions of site classes and site coe
Authors
Roger D. Borcherdt