ATLSS PanTrack tool enables visualization of Florida panther movements
Donald L. DeAngelis
2002, Fact Sheet 135-02
South Florida is home to the last remaining population of endangered Florida panthers, estimated at about 60 individuals. Panther survival is threatened by habitat loss and degradation, inbreeding, insufficient numbers of large prey, and disease. Because the few remaining panthers have been so intensively studied, a detailed database is available...
A data input program (MFI2K) for the U.S. Geological Survey modular ground-water model (MODFLOW-2000)
Arlen W. Harbaugh
2002, Open-File Report 2002-41
MFI2K is a data-input (entry) program for the U.S. Geological Survey modular three-dimensional finite-difference ground-water model, MODFLOW-2000. MFI2K runs on personal computers. MFI2K supports the solute transport and parameter-estimation capabilities that are incorporated in MODFLOW-2000. Data for MODPATH, a particle-tracking program for use with MODFLOW-2000, also can be entered using...
Sources of metal loads to the Alamosa River and estimation of seasonal and annual metal loads for the Alamosa River basin, Colorado, 1995-97
Roderick F. Ortiz, Patrick Edelmann, Sheryl Ferguson, Robert Stogner Sr.
2002, Water-Resources Investigations Report 2002-4128
Metal contamination in the upper Alamosa River Basin has occurred for decades from the Summitville Mine site, from other smaller mines, and from natural, metal-enriched acidic drainage in the basin. In 1995, the need to quantify contamination from various source areas in the basin and to quantify the spatial, seasonal,...
Assessment of natural attenuation of ground-water contamination at sites FT03, LF13, and WP14/LF15, Dover Air Force Base, Delaware
Jeffrey R. Barbaro
2002, Water-Resources Investigations Report 2001-4150
Water-quality, aquifer-sediment, and hydro-logic data were used to assess the effectiveness of natural attenuation of ground-water contamination at Fire Training Area Three, the Rubble Area Landfill, the Liquid Waste Disposal Landfill, and the Receiver Station Landfill in the East Management Unit of Dover Air Force Base, Delaware. These sites, which...
Simulation of ground-water flow and delineation of areas contributing recharge to municipal water-supply wells, Muscatine, Iowa
Mark E. Savoca, Keith J. Lucey, Brian D. Lanning
2002, Water-Resources Investigations Report 2002-4004
Mississippi River alluvium in the Muscatine, Iowa, area provides large quantities of good quality ground water for municipal, industrial, and agricultural supplies. Three municipal well fields for the City of Muscatine produce a total of about 27 million gallons per day from the alluvium. A previously published steady-state ground-water flow...
Ground-water flow and numerical simulation of recharge from streamflow infiltration near Pine Nut Creek, Douglas County, Nevada
Douglas K. Maurer
2002, Water-Resources Investigations Report 2002-4145
Ground-water flow and recharge from infiltration near Pine Nut Creek, east of Gardnerville, Nevada, were simulated using a single-layer numerical finite-difference model as part of a study made by the U.S. Geological Survey in cooperation with the Carson Water Subconservancy District. The model was calibrated to 190 water-level measurements made...
Reconnaissance for selected pathogens, and review of pertinent literature, for the New River Gorge National River, West Virginia, 2000
Terence Messinger
2002, Open-File Report 2002-65
Giardia and enteric viruses were detected in a reconnaissance study of Madam Creek and Dunloup Creek, two tributaries of the New River Gorge National River, in 2000. Cryptosporidium and pathogenic bacteria were not detected in these tributaries. The two streams were identified in previous studies as consistently having some of...
Characterization of ground-water flow between the Canisteo Mine Pit and surrounding aquifers, Mesabi Iron Range, Minnesota
Perry M. Jones
2002, Water-Resources Investigations Report 2002-4198
The U.S. Geological Survey, in cooperation with the Minnesota Department of Natural Resources, conducted a study to characterize ground-water flow conditions between the Canisteo Mine Pit, Bovey, Minnesota, and surrounding aquifers following mine abandonment. The objective of the study was to estimate the amount of steady-state, ground-water flow between the...
Environmental Characteristics and Geographic Information System Applications for the Development of Nutrient Thresholds in Oklahoma Streams
Jason R. Masoner, Brian E. Haggard, Alan Rea
2002, Water-Resources Investigations Report 2002-4191
The U.S.Environmental Protection Agency has developed nutrient criteria using ecoregions to manage and protect rivers and streams in the United States. Individual states and tribes are encouraged by the U.S. Environmental Protection Agency to modify or improve upon the ecoregion approach. The Oklahoma Water Resources Board uses a dichotomous process...
SIMSPAR model simulates the impact of hydrology on the Cape Sable seaside sparrow
Donald L. DeAngelis, Philip Nott, Louis J. Gross
2002, Fact Sheet 136-02
SIMSPAR is a spatially-explicit, individual-based model designed as a management and evaluation tool for the Cape Sable seaside sparrow (Ammodramus maritimus mirabilis), an endangered subspecies of seaside sparrow that lives exclusively in the southern Everglades. The model is designed to simulate how changes in hydrology across the nesting area of...
Influence of hydrology on life-history parameters of common freshwater fishes from southern Florida
William F. Loftus
2002, Fact Sheet 139-02
Fishes are essential to the successful functioning of wetland food webs in southern Florida through their roles as prey and predators. Any changes that reduce the population sizes, community composition, or availability of aquatic animals will affect all facets of the ecology of these wetlands. In particular, small and medium-size...
Surface water-ground water interactions along the lower Dungeness River and vertical hydraulic conductivity of streambed sediments, Clallam County, Washington, September 1999-July 2001
F. William Simonds, Kirk A. Sinclair
2002, Water-Resources Investigations Report 2002-4161
The Dungeness River emerges from the Olympic Mountains and flows generally north toward the Strait of Juan De Fuca, crossing the broad, fertile alluvial fan of the Sequim-Dungeness peninsula in northeastern Clallam County, Washington. Increasing competition for the peninsula's ground-water resources, changing water-use patterns, and recent requirements to maintain minimum...
Sun-Illuminated Sea Floor Topography of Quadrangle 2 in the Great South Channel, Western Georges Bank
Page C. Valentine, Jeremy T. Malczyk, Tammie J. Middleton
2002, IMAP 2698-D
The Great South Channel separates the western part of Georges Bank from Nantucket Shoals and is a major conduit for the exchange of water between the Gulf of Maine to the north and the Atlantic Ocean to the south. Water depths range mostly between 65 and 80 m in the...
The Evolution of the Lower Missouri River: National Mapping Discipline Research at Lisbon Bottom
Water Resources Division, U.S. Geological Survey
2002, Fact Sheet 126-01
Before 1800, the Missouri River was one of North America's most diverse and dynamic ecosystems. During the past 200 years, civil engineering has transformed it into a navigation system regulated by reservoirs and confined by bank stabilization and flood control structures. These modifications have reduced seasonal flow variability and sediment load...
Sun-Illuminated Sea Floor Topography of Quadrangle 1 in the Great South Channel, Western Georges Bank
Page C. Valentine, Tammie J. Middleton, Jeremy T. Malczyk
2002, IMAP 2698-B
The Great South Channel separates the western part of Georges Bank from Nantucket Shoals and is a major conduit for the exchange of water between the Gulf of Maine to the north and the Atlantic Ocean to the south. Water depths range mostly between 65 and 80 m in the...
Watershed models for decision support in the Yakima River basin, Washington
M. C. Mastin, J. J. Vaccaro
2002, Open-File Report 2002-404
A Decision Support System (DSS) is being developed by the U.S. Geological Survey and the Bureau of Reclamation as part of a long-term project, the Watershed and River Systems Management Program. The goal of the program is to apply the DSS to U.S. Bureau of Reclamation projects in the western...
Preliminary description of a model of ground-water flow and ground-water/surface-water interaction for predevelopment , 1941-50, and 1950-97 development conditions in part of the Republican River Basin, Nebraska, Kansas, and Colorado as of April 26, 2002
Matthew K. Landon
2002, Open-File Report 2002-175
Hurricane Mitch: Landscape Analysis of Damaged Forest Resources of the Bay Islands and Caribbean Coast of Honduras
Thomas W. Doyle, Thomas C. Michot, Fred Roetker, Jason Sullivan, Marcus Melder, Benjamin Handley, Jeff Balmat
2002, Open-File Report 2003-175
The advent of analog and digital video has provided amateur photographers with professional-like technology to capture dynamic images with ease and clarity. Videography is also rapidly changing traditional business and scientific applications. In the natural sciences, camcorders are being used largely to record timely observations of plant and animal behavior...
Estimating ground-water inflow to lakes in central Florida using the isotope mass-balance approach
Laura A. Sacks
2002, Water-Resources Investigations Report 2002-4192
The isotope mass-balance approach was used to estimate ground-water inflow to 81 lakes in the central highlands and coastal lowlands of central Florida. The study area is characterized by a subtropical climate and numerous lakes in a mantled karst terrain. Ground-water inflow was computed using both steady-state and transient formulations...
Water-quality data analysis of the upper Gunnison River watershed, Colorado, 1989-99
Jason J. Gurdak, Adrienne I. Greve, Norman E. Spahr
2002, Water-Resources Investigations Report 2002-4001
Water-quality data from October 1969 to December 1999 for both surface water and ground water in the upper Gunnison River watershed were retrieved and compiled from the U.S. Geological Survey National Water Information System and the U.S. Environmental Protection Agency Storage and Retrieval databases. Analyses focused primarily on a subset...
Simulation of ground-water flow in the Intermediate and Floridan aquifer systems in Peninsular Florida
Nicasio Sepulveda
2002, Water-Resources Investigations Report 2002-4009
A numerical model of the intermediate and Floridan aquifer systems in peninsular Florida was used to (1) test and refine the conceptual understanding of the regional ground-water flow system; (2) develop a data base to support subregional ground-water flow modeling; and (3) evaluate effects of projected 2020 ground-water withdrawals on...
Simulation of runoff and water quality for 1990 and 2008 land-use conditions in the Reedy Creek watershed, east-central Florida
Shaun Wicklein, Donna M. Schiffer
2002, Water-Resources Investigations Report 2002-4018
Hydrologic and water-quality data have been collected within the 177-square-mile Reedy Creek, Florida, watershed, beginning as early as 1939, but the data have not been used to evaluate relations among land use, hydrology, and water quality. A model of the Reedy Creek watershed was developed and applied to the period...
Evaluation of possible alternatives to lower the high water table of St. Charles Mesa, Pueblo County, Colorado
Daniel L. Brendle
2002, Water-Resources Investigations Report 2001-4190
St. Charles Mesa, an upland terrace southeast of Pueblo, Colorado, has become increasingly urbanized as cultivated fields have been subdivided and converted to residential areas. In some areas, the water table in the terrace alluvial aquifer underlying St. Charles Mesa is very shallow. Bessemer Ditch, which delivers irrigation water to...
An Intelligent Systems Approach to Automated Object Recognition: A Preliminary Study
Brian G. Maddox, Casey L. Swadley
2002, Open-File Report 2002-461
Attempts at fully automated object recognition systems have met with varying levels of success over the years. However, none of the systems have achieved high enough accuracy rates to be run unattended. One of the reasons for this may be that they are designed from the computer's point of view...
MODFLOW-2000, the U.S. Geological Survey modular ground-water model -- Documentation of the Model-Layer Variable-Direction Horizontal Anisotropy (LVDA) capability of the Hydrogeologic-Unit Flow (HUF) package
Evan R. Anderman, K.L. Kipp, Mary C. Hill, Johan Valstar, R.M. Neupauer
2002, Open-File Report 2002-409
This report documents the model-layer variable-direction horizontal anisotropy (LVDA) capability of the Hydrogeologic-Unit Flow (HUF) Package of MODFLOW-2000. The LVDA capability allows the principal directions of horizontal anisotropy to be different than the model-grid row and column directions, and for the directions to vary on a cell-by-cell basis within model...
