Guidelines for Evaluating Ground-Water Flow Models
Thomas E. Reilly, Arlen W. Harbaugh
2004, Scientific Investigations Report 2004-5038
Ground-water flow modeling is an important tool frequently used in studies of ground-water systems. Reviewers and users of these studies have a need to evaluate the accuracy or reasonableness of the ground-water flow model. This report provides some guidelines and discussion on how to evaluate complex ground-water flow models used...
Digital Aeromagnetic Data and Derivative Products from a Helicopter Survey over the Town of Taos and Surrounding Areas, Taos County, New Mexico
Viki Bankey, V. J. S. Grauch, Fugro Airborne Surveys Corporation
2004, Open-File Report 2004-1229-A
This report contains digital data, image files, and text files describing data formats and survey procedures for aeromagnetic data collected during a helicopter geophysical survey in northern New Mexico during October 2003. The survey covers the Town of Taos, Taos Pueblo, and surrounding communities in Taos County. Several derivative products...
Invasive Species Program --Snakeheads, Aquatic Invaders
Water Resources Division, U.S. Geological Survey
2004, Fact Sheet 2004-3074
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of polycyclic aromatic hydrocarbon compounds in sediment by gas chromatography/mass spectrometry
Mary C. Olson, Jana L. Iverson, Edward T. Furlong, Michael P. Schroeder
2004, Water-Resources Investigations Report 2003-4318
A method for the determination of 28 polycyclic aromatic hydrocarbons (PAHs) and 25 alkylated PAH homolog groups in sediment samples is described. The compounds are extracted from sediment by solvent extraction, followed by partial isolation using high-performance gel permeation chromatography. The compounds are identified and uantitated using capillary-column...
Log and data from an investigation of the Orovada trench site, Santa Rosa range fault zone, Humboldt County, Nevada
Stephen F. Personius, R. Ernest Anderson, Koji Okumura, Shannon Mahan, Dean A. Hancock
2004, Scientific Investigations Map 2815
Parasites of the African clawed frog, Xenopus laevis, in southern California, U.S.A
Boris I. Kuperman, Victoria E. Matey, Richard N. Fisher, Edward L. Ervin, Manna L. Warburton, Ludmila Bakhireva, Cynthia A. Lehman
2004, Comparative Parasitology (71) 229-232
A total of 230 feral African clawed frogs, Xenopus laevis, from 3 localities in southern California were examined for parasites. The following species were found: 3 species of Protozoa, Nyctotherussp., Balantidium xenopodis, Protoopalina xenopodus; 2 species of Monogenea, Protopolystoma xenopodis, Gyrdicotylus gallieni; 1 species of Digenea, Clinostomum sp. (as metacercariae);...
Surface-Water, Water-Quality, and Ground-Water Assessment of the Municipio of Mayaguez, Puerto Rico, 1999-2002
Jesús Rodríguez-Martínez, Luis Santiago-Rivera, Senen Guzman-Rios, Fernando Gómez-Gómez, Mario L. Oliveras-Feliciano
2004, Water-Resources Investigations Report 2003-4317
The surface-water assessment portion of this study focused on analysis of low-flow characteristics in local streams and rivers, because the supply of safe drinking water was a critical issue during recent dry periods. Low-flow characteristics were evaluated at one continuous-record gaging station based on graphical curve-fitting techniques and log-Pearson Type...
Shifting shoals and shattered rocks: How man has transformed the floor of west-central San Francisco Bay
John L. Chin, Florence L. Wong, Paul R. Carlson
2004, Circular 1259
San Francisco Bay, one of the world's finest natural harbors and a major center for maritime trade, is referred to as the 'Gateway to the Pacific Rim.' The bay is an urbanized estuary that is considered by many to be the major estuary in the United States most modified by...
Northwestern panhandle of Florida coastal classification maps— St. Andrew Bay entrance channel to Perdido Pass
Robert A. Morton, Russell L. Peterson, Tara L. Miller
2004, Open-File Report 2004-1217
No abstract available....
Preliminary Results from Coal-Bed Methane Drilling in Ouachita Parish, Louisiana
Peter D. Warwick, F. Clayton Breland Jr., Arthur C. Clark, Jason C. Willett
2004, Open-File Report 2004-1239
Distribution of methyl tert-butyl ether (MTBE) and selected water-quality constituents in the surficial aquifer at the Dover National Test Site, Dover Air Force Base, Delaware, 2001
Marie Stewart, William R. Guertal, Jeffrey R. Barbaro, Timothy J. McHale
2004, Scientific Investigations Report 2004-5011
A joint study by the Dover National Test Site, Dover Air Force Base, Delaware, and the U.S. Geological Survey was conducted from June 27 through July 18, 2001, to determine the spatial distribution of the gasoline oxygenate additive methyl tert-butyl ether and selected water-quality constituents in the surficial aquifer underlying...
Digital Database of Selected Aggregate and Related Resources in Ada, Boise, Canyon, Elmore, Gem, and Owyhee Counties, Southwestern Idaho
Phillip R. Moyle, John C. Wallis, James D. Bliss, Karen D. Bolm
2004, Open-File Report 2004-1067
The U.S. Geological Survey (USGS) compiled a database of aggregate sites and geotechnical sample data for six counties - Ada, Boise, Canyon, Elmore, Gem, and Owyhee - in southwest Idaho as part of a series of studies in support of the Bureau of Land Management (BLM) planning process. Emphasis...
Estimates of flow duration, mean flow, and peak-discharge frequency values for Kansas stream locations
Charles A. Perry, David M. Wolock, Joshua C. Artman
2004, Scientific Investigations Report 2004-5033
Streamflow statistics of flow duration and peak-discharge frequency were estimated for 4,771 individual locations on streams listed on the 1999 Kansas Surface Water Register. These statistics included the flow-duration values of 90, 75, 50, 25, and 10 percent, as well as the mean flow value. Peak-discharge frequency values were estimated...
Water Quality of the Snake River and Five Eastern Tributaries in the Upper Snake River Basin, Grand Teton National Park, Wyoming, 1998-2002
Melanie L. Clark, Wilfrid J. Sadler, Susan E. O’Ney
2004, Scientific Investigations Report 2004-5017
To address water-resource management objectives of the National Park Service in Grand Teton National Park, the U.S. Geological Survey in cooperation with the National Park Service has conducted water-quality sampling in the upper Snake River Basin. Routine sampling of the Snake River was conducted during water years 1998-2002 to monitor...
Development of a 2001 National Land Cover Database for the United States
Collin G. Homer, Chengquan Huang, Limin Yang, Bruce K. Wylie, Michael Coan
2004, Photogrammetric Engineering and Remote Sensing (70) 829-840
Multi-Resolution Land Characterization 2001 (MRLC 2001) is a second-generation Federal consortium designed to create an updated pool of nation-wide Landsat 5 and 7 imagery and derive a second-generation National Land Cover Database (NLCD 2001). The objectives of this multi-layer, multi-source database are two fold: first, to provide consistent land cover...
New reports on our Nation's water quality
Water Resources Division, U.S. Geological Survey
2004, Fact Sheet 2004-3045
Absolute Gravimetry in Antarctica: 1995 Observations at McMurdo Station and Terra Nova Bay Station
Glenn Sasagawa, Tony K. Meunier, Jerry L. Mullins, Dave McAdoo, Fred Klopping
2004, Open-File Report 2004-1190
Mining activity in Nevada, 1851-1995
Lorre A. Moyer
2004, Open-File Report 2004-1244
This report describes a Microsoft PowerPoint digital movie package that displays patterns of Nevada mineral activity from 1851 to 1995 and historical factors that influenced these patterns. The digital package consists of a full length educational movie with text and two short animations showing the evolving patterns of significant Nevada...
Cross-sections and maps showing double-difference relocated earthquakes from 1984-2000 along the Hayward and Calaveras faults, California
Robert W. Simpson, Russell W. Graymer, Robert C. Jachens, David A. Ponce, Carl M. Wentworth
2004, Open-File Report 2004-1083
We present cross-section and map views of earthquakes that occurred from 1984 to 2000 in the vicinity of the Hayward and Calaveras faults in the San Francisco Bay region, California. These earthquakes came from a catalog of events relocated using the double-difference technique, which provides superior relative locations of nearby...
Geology of the Ugashik-Mount Peulik Volcanic Center, Alaska
Thomas P. Miller
2004, Open-File Report 2004-1009
The Ugashik-Mount Peulik volcanic center, 550 km southwest of Anchorage on the Alaska Peninsula, consists of the late Quaternary 5-km-wide Ugashik caldera and the stratovolcano Mount Peulik built on the north flank of Ugashik. The center has been the site of explosive volcanism including a caldera-forming eruption and post-caldera dome-destructive...
Assessment of smolt condition: Biological and environmental interactions -- The impact of prey and predators on juvenile salmonids
Sally T. Sauter, Robin M. Schrock, James H. Petersen, Alec G. Maule
2004, Report
The Bonneville Power Administration (BPA) has funded the Assessment of Smolt Condition project since 1987. During that time the project changed frequently to meet the information needs of fish managers by conducting studies throughout the Columbia River basin. Past research has examined the influence of smolt physiological development and health...
Conjunctive-use optimization model and sustainable-yield estimation for the Sparta aquifer of southeastern Arkansas and north-central Louisiana
Paul W. McKee, Brian R. Clark, John B. Czarnecki
2004, Water-Resources Investigations Report 2003-4231
Conjunctive-use optimization modeling was done to assist water managers and planners by estimating the maximum amount of ground water that hypothetically could be withdrawn from wells within the Sparta aquifer indefinitely without violating hydraulic-head or stream-discharge constraints. The Sparta aquifer is largely a confined aquifer of regional importance that comprises...
Book review: Parasites and diseases of wild birds in Florida
Rebecca A. Cole
2004, Journal of Wildlife Diseases (40) 613-614
No abstract available....
Streamflow and Water-Quality Characteristics for Wind Cave National Park, South Dakota, 2002-03
Allen J. Heakin
2004, Scientific Investigations Report 2004-5071
A 2-year study of streamflow and water-quality characteristics in Wind Cave National Park was performed by the U.S. Geological Survey in cooperation with the National Park Service. During this study, streamflow and water-quality data were collected for three of the park's perennial streams (Cold Spring, Beaver, and Highland Creeks) from...
Simulated effects of ground-water augmentation on the hydrology of Round and Halfmoon Lakes in northwestern Hillsborough County, Florida
Richard M. Yager, P. A. Metz
2004, Water-Resources Investigations Report 2003-4322
Pumpage from the Upper Floridan aquifer in northwest Hillsborough County near Tampa, Florida, has induced downward leakage from the overlying surficial aquifer and lowered the water table in many areas. Leakage is highest where the confining layer separating the aquifers is breached, which is common beneath many of the lakes...
