Conference Papers
Science Quality and Integrity
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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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Use of borehole-radar methods to monitor the movement of a saline tracer in carbonate rock at Belvidere, Illinois
Common-depth (CD) radar surveys and cross-hole radar tomography methods were used to monitor the movement of a saline tracer in a dual-porosity dolomite aquifer at Belvidere, Illinois. The tracer test was conducted using an array of six open-hole bedrock wells at the Parson’s Casket Hardware Superfund site. The injection and recovery boreholes were about 20 m (meters) apart, and the imaging boreho
Authors
John W. Lane, Peter K. Joesten, F. P. Haeni, Mark Vendl, Douglas J. Yeskis
Use of the Moon for spacecraft calibration over 350-2500 nm
The Moon is the only natural object outside the Earth's atmosphere that is within the dynamic range of most imaging instruments on Earth-orbiting spacecraft. The excellent photometric stability of the Lunar surface will allow its use as a long-term instrument calibration source once the dependence of Lunar spectral radiance on phase and libration angles are well characterized. A program to provide
Authors
H. H. Kieffer, J.M. Anderson
Using geostatistical methods to estimate snow water equivalence distribution in a mountain watershed
Knowledge of the spatial distribution of snow water equivalence (SWE) is necessary to adequately forecast the volume and timing of snowmelt runoff. In April 1997, peak accumulation snow depth and density measurements were independently taken in the Loch Vale watershed (6.6 km2), Rocky Mountain National Park, Colorado. Geostatistics and classical statistics were used to estimate SWE distribution
Authors
B. Balk, K. Elder, Jill Baron
Using hydrogeology to site wetland compensation
The Illinois State Geological Survey has designed an initial site evaluation (ISE) procedure to rapidly separate candidate sites that have favorable hydrogeologic characteristics for wetland restoration or creation from sites where success is doubtful or difficult. ISE aims to focus compensation efforts on sites where former wetland hydrology can be restored or where the hydrogeology of wetlands i
Authors
Michael V. Miller, Christine S. Fucciolo, James J. Miner
Well log evaluation of gas hydrate saturations
The amount of gas sequestered in gas hydrates is probably enormous, but estimates are highly speculative due to the lack of previous quantitative studies. Gas volumes that may be attributed to a gas hydrate accumulation within a given geologic setting are dependent on a number of reservoir parameters; one of which, gas-hydrate saturation, can be assessed with data obtained from downhole well loggi
Authors
Timothy S. Collett
Well log evaluation of gas hydrate saturations
The amount of gas sequestered in gas hydrates is probably enormous, but estimates are highly speculative due to the lack of previous quantitative studies. Gas volumes that may be attributed to a gas hydrate accumulation within a given geologic setting are dependent on a number of reservoir parameters; one of which, gas-hydrate saturation, can be assessed with data obtained from downhole well loggi
Authors
T. S. Collett
Why aren't there more Atlantic salmon (Salmo salar)?
Numbers of wild anadromous Atlantic salmon (Salmo salar) have declined demonstrably throughout their native range. The current status of runs on rivers historically supporting salmon indicate widespread declines and extirpations in Europe and North America primarily in southern portions of the range. Many of these declines or extirpations can be attributed to the construction of mainstem dams, pol
Authors
D.L. Parrish, R.J. Behnke, S.R. Gephard, S. D. McCormick, G.H. Reeves
Use of a spatial decision support system for analysis of habitat use by wintering northern pintails
A multi-functional spatial decision support system (SDSS) was,developed at the spatial analysis branch Of the National Wetlands Research Center, and the wildlife analysis module of the system was used to study habitat use by wintering pintail. We instrumented female pintails at Catahoula Lake, Louisiana, in October of 1992-94 and located the instrumented birds weekly through the following March. U
Authors
Clinton W. Jeske, W. Ji, Paul C. Chadwick, W. Norling, M. C. Finley
Chemical, mineralogical, and magnetic characterization of sized fly ash from a coal-fired power plant in Kentucky
No abstract available.
Authors
James D. Cathcart, Richard L. Reynolds, Michael E. Brownfield, James C. Hower
U.S. Geological Survey studies of water co-produced with oil and gas: Implications for future petroleum resource development
The U.S. Geological Survey is conducting research on the impacts of produced waters on petroleum resource development and the environment. Ongoing multidisciplinary investigations are focused on the 1) quantity and quality of current water production, 2) geologic and geochemical parameters that influence the viability of injection wells, and 3) processes that affect the dispersion of inorganic and
Authors
George N. Breit, Yousif K. Kharaka, Robert A. Zielinski, C. A. Rice, Bruce D. Smith, Jennie L. Ridgley
Pliocene-Quaternary geology of northern New Jersey; road log and description of field stops, Sunday June 1, 1997
No abstract available.
Authors
Ron W. Witte, Jack B. Epstein, John Wright
Restoration of mangrove ecosystems after an oil spill
No abstract available.
Authors
C. Edward Proffitt, Donna Devlin, Thomas W. Doyle