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: 5549
Continuous measurement of suspended-sediment concentration Continuous measurement of suspended-sediment concentration
No abstract available.
Authors
J. V. Skinner, J.P. Beverage
Effects of nozzle orientation on sediment sampling Effects of nozzle orientation on sediment sampling
No abstract available.
Authors
T. A. Winterstein, H.G. Stefan
Use of borehole neutron logs to estimate moisture content in the unsaturated zone of an alluvial aquifer Use of borehole neutron logs to estimate moisture content in the unsaturated zone of an alluvial aquifer
he neutron borehole logging tool was calibrated for the determination of moisture content in theunsaturated zone of an alluvial aquifer. A continuous core sample was collected to a depth of 15 ft from the unsaturated zone.Moisture content and other soil properties were determined by standard soil-laboratory techniques. The neutron logs profile was correlated to moisture content. The...
Authors
Vicente Quinones-Aponte, Ramon A. Carrasquillo
Sampling suspended sediment in ice-covered rivers Sampling suspended sediment in ice-covered rivers
No abstract available.
Authors
J. V. Skinner
Role of blanket deposits on the hydrology and water chemistry of the limestone water-table aquifer within the north coast of Puerto Rico through interpretation of geochemical data Role of blanket deposits on the hydrology and water chemistry of the limestone water-table aquifer within the north coast of Puerto Rico through interpretation of geochemical data
No abstract available.
Authors
Angel Roman-Mas
Estimating ground-water influx to a portion of the Rio Grande de Manati River basin in Puerto Rico through the measurement of 222Rn Estimating ground-water influx to a portion of the Rio Grande de Manati River basin in Puerto Rico through the measurement of 222Rn
Water has become a critical commodity in the Caribbean Region. In spite of a relative abundance of rainfall even on the smaller islands, the region is faced with severe seasonal shortages as well as increasing water quality problems. The supply of thewater needs in the area will become even more critical as economic development accelerates and the population continues to increase. The...
Authors
K. Kelly Ellins, Angel Roman-Mas, Roger W. Lee
Implications of recent advances in instrumentation for strong-motion studies Implications of recent advances in instrumentation for strong-motion studies
No abstract available.
Authors
Roger D. Borcherdt
Transient electromagnetic soundings in the Michigan Basin for ground water evaluation Transient electromagnetic soundings in the Michigan Basin for ground water evaluation
No abstract available.
Authors
D.V. Fitterman
Remote sensing and mapping of the vegetation and land use of Senegal Remote sensing and mapping of the vegetation and land use of Senegal
No abstract available.
Authors
G. Gray Tappan
Dynamics of slow landslides: a theory for time-dependent behavior Dynamics of slow landslides: a theory for time-dependent behavior
No abstract available.
Authors
Richard M. Iverson
USGS/Connecticut Geographic Information System project USGS/Connecticut Geographic Information System project
No abstract available.
Authors
D. A. Nystrom, B. E. Wright, M. P. Prisloe, Lawrence G. Batten