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Page 284, results 7076 - 7100

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Vertical series hydraulic conductance classes to characterize the unsaturated zone in North Carolina
Jo Leslie Eimers, Silvia Terziotti, Gloria M. Ferrell
2001, Open-File Report 01-486
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...
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,...
Digital data for construction material sources reported by the Arizona Department of Transportation in 1977 for Maricopa County, Arizona
Douglas M. Hirschberg, G. Stephen Pitts, Henry L. Melcher, James D. Bliss
2001, Open-File Report 2001-122
Material inventories for prospective sources of material for use in building roads and associated structures were prepared by Arizona for several counties including Maricopa County. The inventories provide information about pit locations, materials classification and type, and measures of some characteristics used to determine suitability for aggregate. The digital data given...
Water-Chemistry and On-Site Sulfur-Speciation Data for Selected Springs in Yellowstone National Park, Wyoming, 1996-1998
James W. Ball, D. Kirk Nordstrom, R. Blaine McCleskey, Martin A.A. Schoonen, Yong Xu
2001, Open-File Report 2001-49
Fifty-eight water analyses are reported for samples collected from 19 hot springs and their overflow drainages and one ambient-temperature acid stream in Yellowstone National Park (YNP) during 1996-98. These water samples were collected and analyzed as part of research investigations on microbially mediated sulfur oxidation in stream waters and sulfur redox speciation in...
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...
Seven-year phenological record of the Alaskan ecoregions derived from advanced very high resolution radiometer normalized difference vegetation index data
Carl J. Markon
2001, Open-File Report 2001-11
Seasonal properties of vegetation covering northern boreal and arctic landscapes are considered important as input to numerous climate change studies. In this study, multitemporal phenological characteristics of Alaskan vegetation were studied for the State as a whole, and 19 of 20 ecoregions were studied using seasonally truncated, composited advanced very...
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...
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...
MODFLOW-2000, the U.S. Geological Survey modular ground-water model: User guide to the LMT6 package, the linkage with MT3DMS for multi-species mass transport modeling
Chunmiao Zheng, Mary Catherine Hill, Paul A. Hsieh
2001, Open-File Report 2001-82
MODFLOW-2000, the newest version of MODFLOW, is a computer program that numerically solves the three-dimensional ground-water flow equation for a porous medium using a finite-difference method. MT3DMS, the successor to MT3D, is a computer program for modeling multi-species solute transport in three-dimensional ground-water systems using multiple solution techniques, including the...
Potentiometric surface of the upper Patapsco aquifer in southern Maryland, September 1999
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2001, Open-File Report 2001-208
This report presents a map showing the potentiometric surface of the Upper Patapsco aquifer in the Patapsco Formation of Cretaceous age in Southern Maryland during September 1999. The map is based on water-level measurements in 49 wells. The potentiometric surface was 119 feet above sea level near the northern boundary...
Global Positioning System (GPS) survey of Augustine Volcano, Alaska, August 3-8, 2000: data processing, geodetic coordinates and comparison with prior geodetic surveys
Benjamin A. Pauk, John A. Power, Mike Lisowski, Daniel Dzurisin, Eugene Y. Iwatsubo, Tim Melbourne
2001, Open-File Report 2001-99
Between August 3 and 8,2000,the Alaska Volcano Observatory completed a Global Positioning System (GPS) survey at Augustine Volcano, Alaska. Augustine is a frequently active calcalkaline volcano located in the lower portion of Cook Inlet (fig. 1), with reported eruptions in 1812, 1882, 1909?, 1935, 1964, 1976, and 1986 (Miller et...
Evaluation of nonpoint-source contamination, Wisconsin: water year 1999
John F. Walker, D.J. Graczyk, Steven R. Corsi, J.A. Wierl, D.W. Owens
2001, Open-File Report 2001-105
The objective of the watershed-management evaluation monitoring program in Wisconsin is to evaluate the effectiveness of best-management practices (BMPs) for controlling nonpoint-source pollution in rural and urban watersheds. This progress report provides a summary of the data collected by the U.S Geological Survey for the program and a discussion of...
The difference between the potentiometric surfaces of the Aquia aquifer, September 1982 and September 1999 in southern Maryland
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2001, Open-File Report 2001-205
This report presents a map showing the change in the potentiometric surface of the Aquia aquifer in the Aquia Formation of Paleocene age in Southern Maryland for September 1982 and September 1999. The map, based on water level measurements in 67 wells, shows that the change of the potentiometric...
TopoDrive and ParticleFlow--Two computer models for simulation and visualization of ground-water flow and transport of fluid particles in two dimensions
Paul A. Hsieh
2001, Open-File Report 2001-286
This report serves as a user?s guide for two computer models: TopoDrive and ParticleFlow. These two-dimensional models are designed to simulate two ground-water processes: topography-driven flow and advective transport of fluid particles. To simulate topography-driven flow, the user may specify the shape of the water table, which bounds the top...
Potentiometric Surface of the Aquia Aquifer in Southern Maryland, September 1999
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2001, Open-File Report 2001-204
This report presents a map showing the potentiometric surface of the Aquia aquifer in the Aquia Formation of Paleocene age in Southern Maryland during September 1999. The map is based on water-level measurements in 85 wells. The potentiometric surface was above sea level near the...
Geochemistry of selected mercury mine-tailings in the Parkfield Mercury District, California
James J. Rytuba, Boris B. Kotlyar, Gregg Wilkerson, Jerry Olson
2001, Open-File Report 2001-336
The Parkfield mercury district is located in the southern part of the California Coast Range mercury mineral belt and contains three silica-carbonate-type mercury deposits that have had significant mercury production. Mercury was first produced in the district in 1873, but the main period of production occurred from 1915-1922. Total production...
Radiochemical and chemical constituents in water from selected wells south of the Idaho National Engineering and Environmental Laboratory, Idaho
Roy C. Bartholomay, B.J. Tucker, L.L. Knobel, L. J. Mann
2001, Open-File Report 2001-138
The U.S. Geological Survey and the Bureau of Land Management, in cooperation with the U.S. Department of Energy, sampled water from five stock wells to monitor water quality of the Snake River Plain aquifer south of the Idaho National Engineering and Environmental Laboratory. The samples were analyzed for selected radiochemical...