Environmental and hydrologic overview of the Yukon River basin, Alaska and Canada
Timothy P. Brabets, Bronwen Wang, Robert H. Meade
2000, Water-Resources Investigations Report 99-4204
The Yukon River, located in northwestern Canada and central Alaska, drains an area of more than 330,000 square miles, making it the fourth largest drainage basin in North America. Approximately 126,000 people live in this basin and 10 percent of these people maintain a subsistence lifestyle, depending on the basin's...
MODFLOW-2000, The U.S. Geological Survey modular ground-water model: User guide to modularization concepts and the ground-water flow process
Arlen W. Harbaugh, Edward R. Banta, Mary C. Hill, Michael G. McDonald
2000, Open-File Report 00-92
MODFLOW is a computer program that numerically solves the three-dimensional ground-water flow equation for a porous medium by using a finite-difference method. Although MODFLOW was designed to be easily enhanced, the design was oriented toward additions to the ground-water flow equation. Frequently there is a need to solve additional equations;...
Ecological condition and public use of the Cabrillo National Monument intertidal zone 1990-1995
John M. Engle, Gary E. Davis
2000, Open-File Report 2000-98
Global GIS database. Digital atlas of Central and South America
Hearn Jr., T. Hare, P. Schruben, D. Sherrill, C. LaMar, P. Tsushima
2000, Data Series 62-A
This CD-ROM contains a digital atlas of the countries of Central and South America. This atlas is part of a global database compiled from USGS and other data sources at the nominal scale of 1:1 million and is intended to be used as a regional-scale reference and analytical tool by...
Geologic assessment of coal in the Colorado Plateau: Arizona, Colorado, New Mexico, and Utah
Mark A. Kirschbaum, Lauara N.R. Roberts, L.R. Biewick, editor(s)
2000, Professional Paper 1625-B
This CD-ROM set contains a geologic assessment of coal deposits of the Colorado Plateau region and new resource estimates for selected assessment units within the Colorado Plateau. Original resource estimates (in-place resources before production) for the 12 priority assessment units of the Colorado Plateau exceed one half trillion short tons...
Hydrology and Water and Sediment Quality at James Campbell National Wildlife Refuge near Kahuku, Island of Oahu, Hawaii
Charles D. Hunt Jr., Eric H. De Carlo
2000, Water-Resources Investigations Report 99-4171
The James Campbell National Wildlife Refuge occupies two lowland marsh and pond complexes on the northern coastal plain of Oahu: the mostly natural ponds and wetlands of the Punamano Unit and the constructed ponds of the Kii Unit. The U.S. Fish and Wildlife Service manages the Refuge primarily to protect...
Effects of residential and agricultural land uses on the chemical quality of baseflow of small streams in the Croton Watershed, southeastern New York
Paul M. Heisig
2000, Water-Resources Investigations Report 99-4173
Data on the chemical quality of baseflow from 33 small streams that drain basins of differing land-use type and intensity within the Croton watershed were collected seasonally for 1 year to identify and characterize the quality of ground-water contributions to surface water. The watershed includes twelve of New York City's...
Hydrologic data collected during the 1994 Lake Mills drawdown experiment, Elwha River, Washington
Dallas Childers, D. L. Kresch, S. A. Gustafson, T. J. Randle, J.T. Melena, Brian Cluer
2000, Water-Resources Investigations Report 99-4215
No abstract available....
Quality of wet deposition in the Grand Calumet River Watershed, northwestern Indiana, April 29, 1997–April 28, 1998
Timothy C. Willoughby
2000, Water-Resources Investigations Report 1999–4205
The Grand Calumet River, in northwestern Indiana, drains a heavily industrialized area along the southern shore of Lake Michigan. Steel production and petroleum refining are two of the area’s predominant industries. High-temperature processes, such as fossil fuel combustion and steel production, release contaminants to the atmosphere that may result in...
Geology, hydrology, and ground-water quality of the upper part of the Galena-Platteville aquifer at the Parson's Casket Hardware Superfund site in Belvidere, Illinois
Robert T. Kay, D.J. Yeskis, J.W. Lane Jr., P. C. Mills, P. K. Joesten, G.L. Cygan, J.R. Ursic
2000, Water-Resources Investigations Report 99-4138
The geology, hydrology, hydraulic properties, and distribution of contaminants in the upper part of the Galena-Platteville aquifer at the Parson's Casket Hardware Superfund site in Belvidere, Illinois, were characterized on the basis of data collected from boreholes by use of packer assemblies, flowmeter logging, and borehole ground-penetrating radar. Four permeable...
Effects of coal-mine drainage on stream water quality in the Allegheny and Monongahela River Basins — Sulfate transport and trends
James I. Sams III, Kevin M. Beer
2000, Water-Resources Investigations Report 99-4208
In 1980, the Allegheny and Monongahela Rivers transported a sulfate load of 1.2 million and 1.35 million tons, respectively, to the Ohio River at Pittsburgh. The Monongahela River Basin had a sulfate yield of 184 tons per square mile per year compared to 105 tons per square mile per year...
Considerations for use of the RORA program to estimate ground-water recharge from streamflow records
A. T. Rutledge
2000, Open-File Report 2000-156
The RORA program can be used to estimate ground-water recharge in a basin from analysis of a streamflow record. The program can be appropriate for use if the ground-water flow system is characterized by diffuse areal recharge to the water table and discharge to a stream. The use of...
Water quality in the Santee River basin and coastal drainages, North and South Carolina, 1995-98
W. Brian Hughes, Thomas A. Abrahamsen, Terry L. Maluk, Eric J. Reuber, Lance J. Wilhelm
2000, Circular 1206
Surface water sampled in the Santee River basin and coastal drainages generally meets existing Federal and State guidelines for drinking-water quality and protection of aquatic life. However, urban and agricultural land uses have affected water quality, as indicated by elevated concentrations of bacteria, pesticides, and nutrients in basins dominated by...
Interaction between ground water and surface water in the northern Everglades and relation to water budget and mercury cycling; study methods and appendixes
Judson W. Harvey, S.L. Krupa, C.J. Gefvert, Jungyill Choi, R. H. Mooney, J.B. Giddings
2000, Open-File Report 2000-168
The data presented in this report are products of an investigation that quantified interactions between ground water and surface water at several study sites in the northern Everglades. Goals included identifying the major geologic controls and human alterations that affect interactions between ground water and surface water, and determining how...
Hydrogeology of the gray limestone aquifer in southern Florida
Ronald S. Reese, Kevin J. Cunningham
2000, Water-Resources Investigations Report 99-4213
Results from 35 new test coreholes and aquifer-test, water-level, and water-quality data were combined with existing hydrogeologic data to define the extent, thickness, hydraulic properties, and degree of confinement of the gray limestone aquifer in southern Florida. This aquifer, previously known to be present only in southeastern Florida (Miami-Dade, Broward,...
New earthquake catalog reexamines Hawaii's seismic history
Thomas L. Wright, Fred W. Klein
2000, Eos, Transactions, American Geophysical Union (81) 101-107
On April 2,1868, an earthquake of magnitude 7.9 occurred beneath the southern part of the island of Hawaii. The quake, which was felt throughout all of the Hawaiian Islands, had a Modified Mercalli (MM) intensity of XII near its source.The destruction caused by a quake that large is nearly complete....
Airborne electromagnetics (EM) as a three-dimensional aquifer-mapping tool
Jeff Wynn, Don Pool, Mark Bultman, Mark E. Gettings, Jean Lemieux
2000, Book, Proceedings Volume, SAGEEP-2000 Conference
The San Pedro River in southeastern Arizona hosts a major migratory bird flyway, and was declared a Riparian Conservation Area by Congress in 1988. Recharge of the adjacent Upper San Pedro Valley aquifer was thought to come primarily from the Huachuca Mountains, but the U. S. Army Garrison of Fort...
The global occurrence of natural gas hydrate
Keith A. Kvenvolden, Thomas Lorenson
Charles K. Paull, William P. Dillon, editor(s)
2000, Book chapter
Natural gas hydrate occurs worldwide in oceanic sediment of continental and insular slopes and rises of active and passive margins, in deep-water sediment of inland lakes and seas, and in polar sediment on both continents and continental shelves. In aquatic sediment, where water depths exceed about 300 m and bottom...
Some geophysical work in the U.S. Geological Survey
D. L. Campbell, V.F. Labson, V.J. Grauch
2000, Book, Proceedings of the symposium on the Application of geophysics to engineering and environmental problems
Mortality of burbot from sea lamprey attack and initial analyses of burbot blood
William D. Swink, Kim T. Fredricks
2000, Book chapter, Burbot: Biology, ecology, and management
No abstract available....
Quantifying hydrologic interactions between streams and their subsurface hyporheic zones
Judson W. Harvey, Brian J. Wagner
Jeremy B. Jones, Patrick J. Mulholland, editor(s)
2000, Book chapter, Streams and ground waters
No abstract available. ...
The Miraflores El Niño disaster: Convergent catastrophes and prehistoric agrarian change in southern Peru
Dennis R. Satterlee, Michael E. Moseley, David K. Keefer, Jorge E. Tapia Arana
2000, Andean Past (6) 91-110
No abstract available....
Water quality in the deep tertiary aquifers of the Mississippi Embayment, 1996
Gerard Gonthier
2000, Water-Resources Investigations Report 99-4131
The Phosphoria Formation at the Hot Springs Mine in Southeast Idaho: A source of selenium and other trace elements to surface water, ground water, vegetation, and biota
David Z. Piper, J. P. Skorupa, T. S. Presser, M. A. Hardy, S. J. Hamilton, M. Huebner, R. A. Gulbrandsen
2000, Open-File Report 2000-50
Major-element oxides and trace elements in the Phosphoria Formation at the Hot Springs Mine, Idaho were determined by a series of techniques. In this report, we examine the distribution of trace elements between the different solid components aluminosilicates, apatite, organic matter, opal, calcite, and dolomite that largely make up the...
High flow and riparian vegetation along the San Miguel River, Colorado
Jonathan M. Friedman, G.T. Auble
2000, Report
Riparian ecosystems are characterized by abundance of water and frequent flow related disturbance. River regulation typically decreases peak flows, reducing the amount of disturbance and altering the vegetation. The San Miguel River is one of the last relatively unregulated rivers remaining in the Colorado River Watershed. One goal of major...
