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Page 2922, results 73026 - 73050

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Trends in Streamflow, River Ice, and Snowpack for Coastal River Basins in Maine During the 20th Century
Robert W. Dudley, Glenn A. Hodgkins
2002, Water-Resources Investigations Report 2002-4245
Trends over the 20th Century were examined in streamflow, river ice, and snowpack for coastal river basins in Maine. Trends over time were tested in the timing and magnitude of seasonal river flows, the occurrence and duration of river ice, and changes in snowpack depth, equivalent water content, and density....
Subsurface evaluation of the west parking lot and landfill 3 areas of Air Force Plant 4, Fort Worth, Texas, using two-dimensional direct-current resistivity profiling
Christopher L. Braun, Sonya A. Jones
2002, Water-Resources Investigations Report 2002-4248
During September 1999, the U.S. Geological Survey made 10 two-dimensional direct-current resistivity profile surveys in the west parking lot and landfill 3 areas of Air Force Plant 4, Fort Worth, Texas, to identify subsurface areas of anomalously high or low resistivity that could indicate potential contamination, contaminant pathways, or anthropogenic...
Water and bed-sediment quality in the vicinity of Berlin Lake, Ohio, 2001
Robert A. Darner
2002, Water-Resources Investigations Report 2002-4246
Berlin Lake, in northeast Ohio, was created by the U.S. Army Corps of Engineers in 1943 and is used primarily for flood control for the upper reaches of the Mahoning River. The area surrounding and under the lake has been tapped for oil and natural gas production. One of the...
Geologic framework of the regional ground-water flow system in the Upper Deschutes Basin, Oregon
Kenneth E. Lite Jr., Marshall W. Gannett
2002, Water-Resources Investigations Report 2002-4015
Ground water is increasingly relied upon to satisfy the needs of a growing population in the upper Deschutes Basin, Oregon. Hydrogeologic studies are being undertaken to aid in management of the ground-water resource. An understanding of the geologic factors influencing ground-water flow is basic to those investigations. The geology of...
Long-term sand supply to Coachella Valley Fringe-toed Lizard Habitat in the Northern Coachella Valley, California
Peter G. Griffiths, Robert H. Webb, Nicholas Lancaster, Charles A. Kaehler, Scott C. Lundstrom
2002, Water-Resources Investigations Report 2002-4013
The Coachella Valley fringe-toed lizard (Uma inornata) is a federally listed threatened species that inhabits active sand dunes in the vicinity of Palm Springs, California. The Whitewater Floodplain and Willow Hole Reserves provide some of the primary remaining habitat for this species. The sediment-delivery system that creates these active...
Estimating the magnitude of peak flows at selected recurrence intervals for streams in Idaho
Charles Berenbrock
2002, Water-Resources Investigations Report 2002-4170
Methods for estimating magnitudes of peak flows at various recurrence intervals, needed for highway-structure and water-control design and planning, were developed for gaged and ungaged sites on streams throughout Idaho. Recurrence intervals of 2, 5, 10, 25, 50, 100, 200, and 500 years were selected for analysis of peak flows....
Contaminated sediments database for the Gulf of Maine
Marilyn R. Buchholtz ten Brink, F.T. Manheim, E.L. Mecray, M. E. Hastings, J.M. Currence, J.W. Farrington, S. H. Jones, P. F. Larsen, B.W. Tripp, G.T. Wallace Jr., L. G. Ward, T.J. Fredette, M. L. Liebman, W. Smith Leo
2002, Open-File Report 2002-403
Bottom sediments in the Gulf of Maine and its estuaries have accumulated pollutants of many types, including metals and organic compounds of agricultural, industrial, and household derivation. Much analytical and descriptive data has been obtained on these sediments over the past decades, but only a small effort had been...
Simulation of runoff and recharge and estimation of constituent loads in runoff, Edwards aquifer recharge zone (outcrop) and catchment area, Bexar County, Texas, 1997-2000
Darwin J. Ockerman
2002, Water-Resources Investigations Report 2002-4241
The U.S. Geological Survey developed a watershed model (Hydrological Simulation Program—FORTRAN) to simulate runoff and recharge and to estimate constituent loads in surface-water runoff in the Edwards aquifer recharge zone (outcrop) and catchment area in Bexar County, Texas. Rainfall and runoff data collected during 1970–98 from four gaged basins in...
Trace-element deposition in the Cariaco Basin, Venezuela Shelf, under sulfate-reducing conditions: A history of the local hydrography and global climate, 20 ka to the present
David Z. Piper, Walter E. Dean
2002, Professional Paper 1670
A sediment core from the Cariaco Basin on the Venezuelan continental shelf, which recovered sediment that has been dated back to 20 ka (thousand years ago), was examined for its major-element-oxide and trace-element composition. Cadmium (Cd), chromium (Cr), copper (Cu), molybdenum (Mo), nickel (Ni), vanadium (V), and zinc (Zn) can...
Cyclic injection, storage, and withdrawal of heated water in a sandstone aquifer at St. Paul, Minnesota--Analysis of thermal data and nonisothermal modeling of short-term test cycles
Robert T. Miller, G. N. Delin
2002, Professional Paper 1530-B
In May 1980, the University of Minnesota began a project to evaluate the feasibility of storing heated water (150 degrees Celsius) in the Franconia-Ironton Galesville aquifer (183 to 245 meters below land surface) and later recovering it for space heating. The University's steam-generation facilities supplied high-temperature water for injection. The...
Geologic map and digital database of the San Bernardino Wash 7.5 minute quadrangle, Riverside County, California
Robert E. Powell, Pamela M. Cossette
2002, Open-File Report 2002-498
The geologic map and digital database of the San Bernardino Wash quadrangle are products of a regional geologic mapping effort undertaken in the eastern Transverse Ranges in and around Joshua Tree National Park. This investigation, part of the Southern California Areal Mapping Project (SCAMP), is conducted in cooperation with the...
Spatial digital database of the geologic map of Catalina Core Complex and San Pedro Trough, Pima, Pinal, Gila, Graham, and Cochise Counties, Arizona
William R. Dickinson, Douglas M. Hirschberg, G. Stephen Pitts, Karen S. Bolm
2002, Open-File Report 2002-365
The geologic map of Catalina Core Complex and San Pedro Trough by Dickinson (1992) was digitized for input into a geographic information system (GIS) by the U.S. Geological Survey staff and contractors in 2000-2001. This digital geospatial database is one of many being created by the U.S. Geological Survey as an...
Habitat and environment of islands: primary and supplemental island sets
Nicholas C. Matalas, Bernardo F. Grossling
2002, Professional Paper 1590
The original intent of the study was to develop a first-order synopsis of island hydrology with an integrated geologic basis on a global scale. As the study progressed, the aim was broadened to provide a framework for subsequent assessments on large regional or global scales of island resources and impacts...
Geology and hydrogeology of the Caribbean Islands aquifer system of the Commonwealth of Puerto Rico and the U.S. Virgin Islands
Robert A. Renken, W. C. Ward, I. P. Gill, Fernando Gómez-Gómez, Jesús Rodríguez-Martínez
2002, Professional Paper 1419
Poorly lithified to unconsolidated carbonate and clastic sedimentary rocks of Tertiary (Oligocene to Pliocene) and Quaternary (Pleistocene to Holocene) age compose the South Coast aquifer and the North Coast limestone aquifer system of Puerto Rico; poorly lithified to unlithified carbonate rocks of late Tertiary (early Miocene to Pliocene) age make...