Sedimentation profiles in Lake Tuscaloosa, Alabama, 2000
Victor E. Stricklin
2001, Open-File Report 2001-317
Lake Tuscaloosa, created in 1969 by the impoundment of North River, is the primary water supply for the cities of Tuscaloosa and Northport, Alabama, and surrounding areas. In 1982, 17 cross-sections were established in the principal tributaries of the lake, which include North River, Dry Creek, Turkey Creek, Binion Creek,...
Lahar Hazards at Concepción volcano, Nicaragua
J.W. Vallance, S. P. Schilling, G. Devoli, M.M. Howell
2001, Open-File Report 2001-457
Concepción is one of Nicaragua’s highest and most active volcanoes. The symmetrical cone occupies the northeastern half of a dumbbell shaped island called Isla Ometepa. The dormant volcano, Maderas, occupies the southwest half of the island. A narrow isthmus connects Concepción and Maderas volcanoes. Concepción volcano towers more than 1600...
Radiochemical and chemical constituents in water from selected wells and springs from the southern boundary of the Idaho National Engineering and Environmental Laboratory to the Hagerman area, Idaho, 2000
Roy C. Bartholomay, Brian V. Twining, Linford J. Campbell
2001, Open-File Report 2001-358
Potentiometric surface of the Magothy aquifer in southern Maryland, September 1999
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2001, Open-File Report 2001-207
This report presents a map showing the change in the potentiometric surface of the Magothy aquifer in the Magothy Formation of Cretaceous age in Southern Maryland for September 1975 and September 1999. The map, based on water level measurements in 61 wells, shows that the potentiometric surface during the 24-year...
Science Plan, U.S. Geological Survey Florida District
Kathleen M. Hammett, Brian G. Katz, Benjamin F. McPherson, Eduardo Patino, Donna M. Schiffer, Leslie Wedderburn, Dann K. Yobbi
2001, Open-File Report 2001-180
This Science Plan has been prepared by the Florida District of the U.S. Geological Survey (USGS) as a tool to provide direction for the scientific work to be accomplished in the District during the next 5-10 years. A Science Plan can serve as a guide to determine the optimum use...
Productivity measurements of benthic communities in Biscayne National Park as an indication of ecosystem health
Robert B. Halley, K. K. Yates
2001, Open-File Report 2001-91
Potentiometric surface of the lower Patapsco aquifer in southern Maryland, September 1999
Stephen E. Curtin, D. C. Andreasen, J. C. Wheeler
2001, Open-File Report 2001-210
Percent-slope classes to characterize the unsaturated zone in North Carolina
Silvia Terziotti, Jo Leslie Eimers
2001, Open-File Report 01-495
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was...
Soil-gas helium and radon data from parts of west-central Ventura County, California
C.G. Bowles, G.M. Reimer
2001, Open-File Report 2001-462
Assessment of volatile organic compounds in surface water at Canal Creek, Aberdeen Proving Ground, Maryland, November 1999–September 2000
Daniel J. Phelan, Lisa D. Olsen, Michael P. Senus, Tracey A. Spencer
2001, Open-File Report 2001-292
The purpose of this report is to describe the occurrence and distribution of volatile organic compounds in surface-water samples collected by the U.S. Geological Survey in the Canal Creek area of Aberdeen Proving Ground, Maryland, from November 1999 through September 2000. The report describes the differences between years with below...
Map Showing Susceptibility to Earthquake-Induced Landsliding, San Juan Metropolitan Area, Puerto Rico
Marilyn Santiago, Matthew C. Larsen
2001, Open-File Report 2001-39
Analysis of slope angle and rock type using a geographic information system indicates that about 68 percent of the San Juan metropolitan area has low to no susceptibility to earthquake-induced landslides. This is at least partly due to the fact that 45 percent of the San Juan metropolitan area is...
Reconnaissance geologic map of the Dixonville 7.5' quadrangle, Oregon
Angela S. Jayko, Ray E. Wells, R. W. Givler, J.S. Fenton, M. Sinor
2001, Open-File Report 2001-226
The Dixonville 7.5 minute quadrangle is situated near the edge of two major geologic and tectonic provinces the northernmost Klamath Mountains and the southeastern part of the Oregon Coast Ranges (Figure 1). Rocks of the Klamath Mountains province that lie within the study area include ultramafic, mafic, intermediate and siliceous...
Watershed characteristics rating for North Carolina
Silvia Terziotti, Jo Leslie Eimers, J. Curtis Weaver
2001, Open-File Report 01-490
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was...
Hawaii Beach Monitoring Program: Profile locations
Ann E. Gibbs, Bruce M. Richmond, Charles H. Fletcher, Kindra P. Hillman
2001, Open-File Report 01-308
Coastal erosion is widespread and locally severe in Hawaii and other low-latitude areas. Typical erosion rates in Hawaii are in the range of 15 to 30 cm/yr (0.5 to 1 ft/yr; Hwang, 1981; Sea Engineering, Inc., 1988; Makai Ocean Engineering, Inc. and Sea Engineering, Inc.,1991). Recent studies on Oahu (Fletcher...
Annotated bibliography of the U.S. Geological Survey Front Range Infrastructure Resources Project, 1996-2001
Daniel H. Knepper
2001, Open-File Report 2001-302
Changes in riparian vegetation in the southwestern United States : floods and riparian vegetation on the San Juan River, southeastern Utah
Robert H. Webb, Diane E. Boyer, Lynn Orchard, Victor R. Baker
2001, Open-File Report 2001-314
Lead-rich sediments, Coeur d'Alene River Valley, Idaho: area, volume, tonnage, and lead content
Arthur A. Bookstrom, Stephen E. Box, Julie K. Campbell, Kathryn I. Foster, Berne L. Jackson
2001, Open-File Report 2001-140
In north Idaho, downstream from the Coeur d?Alene (CdA) silver-lead-zinc mining district, lead-rich sediments, containing at least 1,000 ppm of lead, cover approximately 61 km2 (or 73 percent) of the 84-km2 floor of the CdA River valley, from the confluence of its North and South Forks to the top of its delta-front slope,...
Yosemite Quadrangle, Central Sierra Nevada, California -- Analytic Data
Dallas L. Peck
2001, Open-File Report 2001-252
Water quality data for selected wells in the Coastal Plain of New Jersey, 1996-98
Kathleen L. Hibbs, Paul E. Stackelberg, Leon J. Kauffman, Mark A. Ayers
2001, Open-File Report 2001-378
Water-quality data were collected during 1996-98 for 217 wells in New Jersey and 3 wells in New York as part of the U. S. Geological Survey's National Water Quality Assessment Program. Samples were collected for five ground-water surveys that were designed to assess water quality in major aquifer systems, with...
Water-Resources Investigations in Wisconsin, 2001
Diane E. Maertz (compiler), Jan A. Fuller
2001, Open-File Report 2001-254
The statewide average precipitation of 32.82 inches for the 2000 water year was 1.14 inches greater than the normal annual precipitation of 31.68 inches for water years 1961-90. Average precipitation values affecting streamflow conditions ranged from 90 percent of normal in northwest Wisconsin to 121 percent of normal in southeast...
Daily and seasonal variability of pH, dissolved oxygen, temperature, and specific conductance in the Colorado River between the forebay of Glen Canyon Dam and Lees Ferry, northeastern Arizona, 1998-99
Marilyn E. Flynn, Robert J. Hart, G. Richard Marzolf, Carl J. Bowser
2001, Open-File Report 2001-222
The productivity of the trout fishery in the tailwater reach of the Colorado River downstream from Glen Canyon Dam depends on the productivity of lower trophic levels. Photosynthesis and respiration are basic biological processes that control productivity and alter pH and oxygen concentration. During 1998?99, data were collected to aid...
Unsaturated zone characteristics rating for North Carolina
Silvia Terziotti, Jo Leslie Eimers
2001, Open-File Report 01-489
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was...
Percent-slope classes to characterize watersheds in North Carolina
Silvia Terziotti, Jo Leslie Eimers
2001, Open-File Report 01-496
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was...
Land-use classes to characterize watersheds and unsaturated zones in North Carolina
Silvia Terziotti, Jo Leslie Eimers
2001, Open-File Report 01-493
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was...
Digital data used to relate nutrient input to water quality in the Chesapeake Bay watershed
John W. Brakebill, Stephen D. Preston, Sarah K. Martucci
2001, Open-File Report 2001-251
Digital data sets compiled by the U.S. Geological Survey were used as input for a collection of Spatially Referenced Regressions On Watershed (SPARROW) attributes for the Chesapeake Bay region including parts of Delaware, Maryland, New York, Pennsylvania, Virginia, West Virginia, and the District of Columbia. These regressions use a nonlinear...
