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.
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The sandflat habitat: Scaling from experiments to conclusions The sandflat habitat: Scaling from experiments to conclusions
Ecological systems are characterised by spatial and temporal variations in the density of organisms and resources, and in the intensity of processes which affect them (e.g. Watt, 1947, Dayton, 1971, Addicot et al., 1987, Kolasa and Pickett, 1991 and Giller et al., 1994). This heterogeneity represents both a difficulty for field study design and statistical testing, and a challenge to...
Authors
S.F. Thrush, R.D. Pridmore, R.G. Bell, V.J. Cummings, P.K. Dayton, R. Ford, J. Grant, M.O. Green, J.E. Hewitt, A.H. Hines, T.M. Hume, S.M. Lawrie, P. Legendre, B.H. McArdle, D. Morrisey, Davod C. Schneider, S.J. Turner, R. A. Walters, R.B. Whitlatch, M.R. Wilkinson
Translocation programs in freshwater mussels: genetic and disease concerns Translocation programs in freshwater mussels: genetic and disease concerns
No abstract available at this time
Authors
R. Villella, T. King, C. Starliper
Turbulent stresses in the surf-zone: Which way is up? Turbulent stresses in the surf-zone: Which way is up?
Velocity observations from a vertical stack of three-component Acoustic Doppler Velocimeters (ADVs) within the energetic surf-zone are presented. Rapid temporal sampling and small sampling volume provide observations suitable for investigation of the role of turbulent fluctuations in surf-zone dynamics. While sensor performance was good, failure to recover reliable measures of tilt from...
Authors
John W. Haines, Guy Gelfenbaum
Two-dimensional habitat modeling in the Yellowstone/Upper Missouri River system Two-dimensional habitat modeling in the Yellowstone/Upper Missouri River system
This study is being conducted to provide the aquatic biology component of a decision support system being developed by the U.S. Bureau of Reclamation. In an attempt to capture the habitat needs of Great Plains fish communities we are looking beyond previous habitat modeling methods. Traditional habitat modeling approaches have relied on one-dimensional hydraulic models and lumped...
Authors
T. J. Waddle, K.D. Bovee, Z.H. Bowen
Understanding of urban hazards, fire, and tsunamis Understanding of urban hazards, fire, and tsunamis
Understanding of the causes and solutions of an urban area's (e.g., Los Angeles, San Diego, San Francisco, Oakland, Seattle, Portland, Anchorage, Salt Lake City, Memphis, St. Louis, Charleston, Boston, San Juan) vulnerability to earthquakes, fire, and tsunamis has increased significantly during the past 50 years, and during the current International Decade for Natural Disaster Reduction...
Authors
Walter W. Hays
Use of a neural network to integrate geoscience information in the classification of mineral deposits and occurrences Use of a neural network to integrate geoscience information in the classification of mineral deposits and occurrences
No abstract available.
Authors
Donald A. Singer, Ryoichi Kouda
Variations in pore-water quality, mineralogy, and sedimentary texture of clay-silts in the lower Miocene Kirkwood Formation, Atlantic City, New Jersey Variations in pore-water quality, mineralogy, and sedimentary texture of clay-silts in the lower Miocene Kirkwood Formation, Atlantic City, New Jersey
Properties of and pore-water solute chemistry in confining units in the New Jersey Coastal Plain were studied to determine whether leakage of solute-enriched pore water from confining units affects regional aquifer-water chemistry, which ultimately may result in aquifer waters with high sodium and bicarbonate concentrations. Pore-water samples collected from a continuously cored borehole...
Authors
A. A. Pucci, Zoltan Szabo, James P. Owens
Water quality at production wells near artificial-recharge basins in Montebello Forebay, Los Angeles County Water quality at production wells near artificial-recharge basins in Montebello Forebay, Los Angeles County
No abstract available.
Authors
R. A. Schroeder, R. Anders, J.K. Bohlke, Robert L. Michel, David W. Metge
Use of directional borehole radar and azimuthal square-array D.C. resistivity methods to characterize a crystalline-bedrock aquifer Use of directional borehole radar and azimuthal square-array D.C. resistivity methods to characterize a crystalline-bedrock aquifer
No abstract available.
Authors
Melinda J. Chapman, John W. Lane
Orientation and characteristics of fractures in crystalline bedrock determined by surface and borehole geophysical surveys, Millville and Uxbridge, Massachusetts Orientation and characteristics of fractures in crystalline bedrock determined by surface and borehole geophysical surveys, Millville and Uxbridge, Massachusetts
No abstract available.
Authors
B. P. Hansen, John W. Lane
Use of borehole-radar methods to detect a saline tracer in fractured crystalline bedrock at Mirror Lake, Grafton County, New Hampshire, USA Use of borehole-radar methods to detect a saline tracer in fractured crystalline bedrock at Mirror Lake, Grafton County, New Hampshire, USA
No abstract available.
Authors
John W. Lane, F.P. Haeni, G. Placzek, D.L. Wright
Geophysical characterization of a fractured-bedrock aquifer and blast-fractured contaminant-recovery trench Geophysical characterization of a fractured-bedrock aquifer and blast-fractured contaminant-recovery trench
No abstract available.
Authors
John W. Lane, F.P. Haeni, Susan Soloyanis, G. Placzek, J. H. Williams, C. D. Johnson, M. L. Buursink, P. K. Joesten, K. D. Knutson