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Front-Tracking Model for Convective Transport in Flowing Ground Water
Abstract: This report describes a finite-difference numerical model that simulates the convective transport of water or tracer particles through porous media. It can be applied to one- or two-dimensional problems involving either steady-state or transient flow. The model tracks representative water or tracer particles, initially located along specified lines, as they move in response to the ground-water velocity field. Aquifer properties may be both anisotropic and nonhomogeneous. Included in the report is a listing of the program along with input formats and test problem results. The front-tracking model provides a useful first approximation for determining the movement of solutes in an aquifer, particularly in cases where dispersion and dilution is of minor consideration.
Date:
1983
Creator:
Garabedian, Stephen P. & Konikow, Leonard F.
System:
The UNT Digital Library
Hydrogeology of Parts of the Central Platte and Lower Loup Natural Resources Districts, Nebraska
From purpose and scope: There are two principal purposes for this study. The first is to describe the hydrogeologic system of the study area. The second is to develop and demonstrate a capability for evaluating, quantitatively, the effects of different management alternatives on water levels and on streamflow in the study area.
Date:
1983
Creator:
Peckenpaugh, J. M. & Dugan, J. T.
System:
The UNT Digital Library
Hydrology and Subsidence Potential of Proposed Coal-Lease Tracts in Delta County, Colorado
From purpose and objectives: The purpose of this report is to summarize the hydrologic investigation. The study objective was to provide data and a limited interpretation of surface- and ground-water flow systems.
Date:
1983
Creator:
Brooks, Tom
System:
The UNT Digital Library
Water Resources of Hanson and Davison Counties, South Dakota
From introduction: In July 1977, the South Dakota Geological Survey and the U.S. Geological Survey began a 4-year study to evaluate the water resources and geology of Hanson and Davison Counties. The purpose of this report is to provide hydrogeologic information for future water development and planning in the counties. This study is part of an evaluation of the water resources and geology of eastern South Dakota (fig. 1).
Date:
1983
Creator:
Hansen, Donald S.
System:
The UNT Digital Library
Magnitude and Frequency of Floods in Eastern Oregon
From purpose and scope: This report describes methods for estimating the magnitude and frequency of floods at ungaged sites on streams with unregulated flow in eastern Oregon. The purpose is to provide a method to estimate flood magnitude and frequency and to present the supporting data. The report is based on data from nearly all unregulated streams (or data from regulated streams prior to their regulation) where gaging stations have been operated.
Date:
1983
Creator:
Harris, D. D. & Hubbard, Lawrence E.
System:
The UNT Digital Library
A Preliminary Assessment of the Hydrologic Characteristics of the James River in South Dakota
From objectives and scope: The objectives of this study were to more accurately define certain hydrologic and hydraulic characteristics of the James River and its tributaries in South Dakota, to analyze the water budget and water quality within the Sand Lake National Wildlife Refuge, and to identify the need for additional studies.
Date:
1983
Creator:
Benson, Rick D.
System:
The UNT Digital Library
Ground Water in the Redding Basin, Shasta and Tehama Counties, California
From purpose and scope: This report includes a description of the geohydrologic features of the different aquifers; a definition of source, occurrence, movement, and quality of the ground water; and an estimation of the current pumpage and ground-water storage.
Date:
1983
Creator:
Pierce, Michael J.
System:
The UNT Digital Library
Preliminary Appraisal of the Hydrology of the Stigler Area, Haskell County, Oklahoma
From purpose and scope: The purpose of this report is to describe the hydrology of the Stigler area, based on the limited data collected since October, 1978.
Date:
1983
Creator:
Marcher, Melvin V.; Huntzinger, Thomas L.; Stoner, Jerry D. & Blumer, Stephen P.
System:
The UNT Digital Library
Reservoir Evaporation in Central Colorado
Purpose of study and report: This study is the result of an agreement between the Denver Water Department and the U.S. Geological Survey to investigate the evaporative losses from reservoirs which are a part of the Denver water-supply system. Interim results of the study were presented by Ficke and others (1977). The subject report is a continuation of results given by Ficke and others (1977).
Date:
1983
Creator:
Spahr, Norman E. & Ruddy, Barbara C.
System:
The UNT Digital Library
Projected Effects of Proposed Chloride-Control Projects on Shallow Ground Water--Preliminary Results for the Wichita River Basin, Texas
From purpose and scope: The purpose of this report is to present preliminary results of the study by the Geological Survey on the following: (1) The existing ground-water conditions in the shallow fresh-water system in the vicinity of the proposed Truscott Brine Lake (figure 1) and (2) the projection of the post-construction effects of the proposed Truscott Brine Lake on the fresh-water aquifer, especially in relation to changes in hydraulic head but also with respect to possible changes in the chemical quality of the ground water.
Date:
1983
Creator:
Garza, Sergio
System:
The UNT Digital Library
Potential Hydrologic Impacts of a Tar-Sand Industry in 11 Special Tar Sand Areas in Eastern Utah
From purpose and scope: This report summarizes the hydrology in and near the 11 Special Tar Sand Areas which were designated by the U.S. Bureau of Land Management. The 11 areas are in eastern Utah where normal annual precipitation generally ranges from less than 6 to about 20 inches and runoff is minimal.
Date:
1983
Creator:
Lindskov, K. L.
System:
The UNT Digital Library
Appraisal of Water-Quality Conditions, Lower Black River, Windsor County, Vermont
From purpose and scope: The objectives of the study are to assess the overall water-quality conditions, discuss the variations in water quality and probable causes, evaluate the effects of secondary treated wastewater on impoundments, and analyze the effect of streamflow regulation on algal production within and downstream of impoundments.
Date:
1983
Creator:
Toppin, Kenneth W.
System:
The UNT Digital Library
Trends and Fluctuations in the Potentiometric Surface of the Floridian Aquifer, West-Central Florida 1961-80
From introduction: This report describes the long-term and short-term trends and fluctuations of the potentiometric surface of the Floridan aquifer. Data shown include: (1) annual rainfall and departure from average rainfall at St. Leo and Arcadia from 1961 through 1980, and hydrographs of selected wells; and (2) maps that show change in the potentiometric surface of the Floridan aquifer from January 1964 to May 1969, from May 1969 to May 1975, from May 1975 to may 1980, from September 1975 to September 1980, and from January 1964 to May 1980.
Date:
1983
Creator:
Yobbi, D. K.
System:
The UNT Digital Library
Identification and Classification of Perennial Streams of Arkansas
From introduction: The primary purpose of this study was to identify perennial streams. The secondary purpose was to classify them by flow. This information can be useful for planning and designing water supplies, analyzing environmental and economic impacts of various projects, water-quality modeling, and the determination of optimum and maintenance flows for a variety of instream uses.
Date:
1983
Creator:
Hunrichs, R. A.
System:
The UNT Digital Library
Availability and Chemical Quality of Water From Surficial Aquifers in Southwest Minnesota
From introduction: The objectives of the study were to (1) determine the areal extent, thickness, and water-yielding capability of aquifers in the surficial deposits, (2) estimate the amount of water in storage in the aquifers, (3) determine the chemical quality of water in the aquifers and, (4) establish observation wells to monitor the effects of ground-water development on water levels and storage in the aquifers.
Date:
1983
Creator:
Adolphson, D. G.
System:
The UNT Digital Library
Hydrology of the Ogallala Aquifer in Ford County, Southwestern Kansas
From purpose and scope: The objectives of this cooperative investigation between the U.S. Geological Survey and Southwest Kansas Groundwater Management District No. 3 were (1) to update and interpret geologic and hydrologic information affecting the Ogallala aquifer in Ford County, and (2) to evaluate hydrologic conditions in the Ogallala aquifer in Ford County during 1980 and 1981.
Date:
1983
Creator:
Spinazola, Joseph M. & Dealy, Michael T.
System:
The UNT Digital Library
Streamflow Losses and Changes in Ground-Water Levels Along the Salt and Gila Rivers Near Phoenix, Arizona--February 1978 to June 1980
Scope: This report summarizes part of the hydrologic data needed to determine the effects of streamflow on ground-water storage. The report includes (1) streamflow data at selected points between the water-conservation reservoirs on the Salt and Verde Rivers and the Gila River as Gillespie Dam, (2) changes in ground-water levels in 169 observation wells from February 1978 to May 1980, (3) an estimate of the streamflow losses along the Salt and Gila Rivers between Granite Reef and Gillespie Dams from March 1978 to June 1980, and (4) the infiltration rates on May, 9, 1979, for the Salt River downstream from Granite Reef Dam. Most of the hydrologic data in this report are available in computer-printout form and may be consulted at U.S. Geological Survey offices in: Federal Building, 301 West Congress Street, Tucson, and Valley Center, Suite 1880, Phoenix. Copies of the data can be obtained at private expense.
Date:
April 1983
Creator:
Mann, Larry J. & Rohne, Paul B., Jr.
System:
The UNT Digital Library
Evaluation of the Response of the Big Sioux Aquifer to Extreme Drought Conditions in Minnehaha County, South Dakota
From purpose and approach of study: The purpose of this study was to use the digital-computer model developed from the previous study (Koch, 1982) to examine the effects on the aquifer of a pumping rate of 25 million gallons a day under the worst-drought conditions that occurred during 1974-78. A frequency rating was determined for the most severe low-flow condition in the Big Sioux River.
Date:
1983
Creator:
Koch, Neil C.
System:
The UNT Digital Library
Flood Elevations for the Soleduck River at Sol Duc Hot Springs, Clallam County, Washington
Abstract: Elevations and inundation areas of a 100-year flood of the Soleduck River, Washington, were determined by the U.S. Geological Survey for the area in the vicinity of the Sol Duc Hot Springs resort, a public facility in the Olympic National Park that under Federal law must be located beyond or protected from damage by a 100-year flood. Results show that most flooding could be eliminated by raising parts of an existing dike. In general, little flood damage is expected, except at the southern end of an undeveloped airstrip that could become inundated and hazardous due to flow from s tributary. The airstrip is above the 100-year flood of the Soleduck River.
Date:
1983
Creator:
Nelson, Leonard M.
System:
The UNT Digital Library
Ground Water in the Northeast Part of Twentynine Palms Marine Corps Base, Bagdad Area, California
Purpose and scope: The U.S. Marine Corps conducts training maneuvers in the study area. Lack of a local source of water has severely limited the utilization of the area. In the past, limited quantities of water have been transported to the area by truck or helicopter. The purpose of this study was to determine the feasibility of obtaining a supply of ground water in the area for use when field maneuvers are being conducted. The major effort for this study was concentrated on the part within the Marine Corps base boundary. The study involved the assessment of ground-water quality, ground water in storage, and aquifer characteristics.
Date:
July 1983
Creator:
Koehler, J. H.
System:
The UNT Digital Library
Ground-Water-Use Trends in the Twin Cities Metropolitan Area, Minnesota, 1880-1980
From purpose and scope: The purpose of this report is to describe trends in ground-water use in the Twin Cities metropolitan area, Minnesota, from 1880 to 1980. Water-use trends are discussed in terms of use category, volume of water used over time, aquifer, and well location.
Date:
1983
Creator:
Horn, M. A.
System:
The UNT Digital Library
Uncertainties in Records of Annual Mean Discharge in Maine
From abstract: This report documents the results of rating analyses based on linear multiple regression for ice-covered periods of flow at 33 stations on selected rivers in Maine. The report also presents functions relating uncertainties in records to the number of discharge measurements made at 54 stations.
Date:
April 1983
Creator:
Fontaine, Richard A.
System:
The UNT Digital Library
Hydrogeologic and Water-Quality Characteristics of the St. Peter Aquifer, Southeast Minnesota
From abstract: This report is one of a series on the hydrogeology and water quality of the 14 principal aquifers in Minnesota prepared by the U.S. Geological Survey. The U.S. Environmental Protection Agency requested these studies because of the need for information to develop its Underground Injection Control Program.
Date:
1983
Creator:
Ruhl, J. F. & Wolf, R. J.
System:
The UNT Digital Library
Computer Routines for Probability Distributions, Random Numbers, and Related Functions
Abstract: Use of previously coded and tested subroutines simplifies and speeds up program development and testing. This report presents routines that can be used to calculate various probability distributions and other functions of importance in statistical hydrology.
Date:
1983
Creator:
Kirby, W. H.
System:
The UNT Digital Library