Conference Papers
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Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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Regeneration processes and conservation of riparian forests in the Great Plains Regeneration processes and conservation of riparian forests in the Great Plains
No abstract available.
Authors
G.T. Auble, J.M. Friedman, M. L. Scott
Reservoir model for Hillsboro gas storage field management Reservoir model for Hillsboro gas storage field management
A 3-dimensional reservoir model is used to understand the behavior of the Hillsboro Gas Storage Field and to investigate the field's performance under various future development. Twenty-two years of the gas storage reservoir history, comprising the initial gas bubble development and seasonal gas injection and production cycles, are examined with a full-field, gas water, reservoir...
Authors
Emmanuel O. Udegbunam, Curt Kemppainen, Jim Morgan
Robustness of de Saint Venant equations for simulating unsteady flows Robustness of de Saint Venant equations for simulating unsteady flows
Long-wave motion in open channels can be expressed mathematically by the one-dimensional de Saint Venant equations describing conservation of fluid mass and momentum. Numerical simulation models, based on either depth/velocity or water-level/discharge dependent-variable formulations of these equations, are typically used to simulate unsteady open-channel flow. However, the implications...
Authors
Robert A. Baltzer, Raymond W. Schaffranek, Chintu Lai
Role of near-bed turbulence in bedload transport Role of near-bed turbulence in bedload transport
Bedload transport by a turbulent fluid moving over an erodible sediment bed results from complex interactions between flow field of the overlying fluid and the grains making up the bed. To develop a better view of these interactions, a method that combines high-speed photography with laser-Doppler velocimetry was devised. The methodology permits correlation of bedload transport with...
Authors
Jonathan M. Nelson, Ronald L. Shreve, Stephen R. McLean
Shorebird use of a created wetland in southern California estuary Shorebird use of a created wetland in southern California estuary
No abstract available at this time
Authors
B.E. Kus
Sidescan-sonar surveys of critical habitats in Long Island Sound, Connecticut Sidescan-sonar surveys of critical habitats in Long Island Sound, Connecticut
The Long Island Sound estuary is located in the most densely populated region of the U.S.. Due to the enormous surrounding population, large inputs of anthropogenic wastes and toxic chemicals, benthic habitats were degraded. To address this environmental problem, sidescan-sonar mosaics are being developed within specific areas of critical concern. Detailed bathymetric and high-resolution...
Authors
L.J. Poppe, R. S. Lewis, Roman Zajac, D.C. Twichell, H.J. Knebel
Silver and other tracers of sewage particles in coastal and deep sea sediments off the east coast, USA Silver and other tracers of sewage particles in coastal and deep sea sediments off the east coast, USA
No abstract available.
Authors
Michael H. Bothner, Marilyn R. Buchholtz ten Brink, G.E. Ravizza
Simplified method for estimating total streambed scour at bridges in Illinois Simplified method for estimating total streambed scour at bridges in Illinois
A simplified method to estimate total streambed scour was developed for application to approximately 10,000 Local Agency bridges (bridges owned by local governments and not by the State of Illinois). This method consists of using total scour-envelope curves, developed as empirical relations between calculated total scour and bridge characteristics for 303 State Highway Bridges, to...
Authors
Robert R. Holmes, Daniel G. Ghere, Chad J. Dunn
Simulation of interaction between ground water in an alluvial aquifer and surface water in a large braided river Simulation of interaction between ground water in an alluvial aquifer and surface water in a large braided river
The Fairbanks, Alaska, area has many contaminated sites in a shallow alluvial aquifer. A ground-water flow model is being developed using the MODFLOW finite-difference ground-water flow model program with the River Package. The modeled area is discretized in the horizontal dimensions into 118 rows and 158 columns of approximately 150-meter square cells. The fine grid spacing has the...
Authors
S. A. Leake, M. R. Lilly
Suspended-solids flux in Suisun Bay, California Suspended-solids flux in Suisun Bay, California
No abstract available.
Authors
A. Tobin, D. H. Schoellhamer, J.R. Burau
Three-dimensional inverse modelling using heads and concentrations at a Danish landfill Three-dimensional inverse modelling using heads and concentrations at a Danish landfill
A three-dimensional inverse model using hydraulic heads and concentrations of non-reactive solutes is presented. Application to the Danish Grindsted Old Landfill is used to investigate how the concentration data affects estimates of horizontal and vertical hydraulic conductivity and longitudinal dispersivity as well as prediction uncertainty
Authors
Heidi Christiansen Barlebo, Mary C. Hill, Dan Rosbjerg, Karsten H. Jensen