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Simulation of flood hydrographs for Georgia streams
Ernest J. Inman
1986, Water-Resources Investigations Report 86-4004
Flood hydrographs are needed for the design of many highway drainage structures and embankments. A method for simulating these flood hydrographs at ungaged sites in Georgia is presented in this report.The O'Donnell method was used to compute unit hydrographs and lagtimes for 355 floods at 80 gaging stations. An average...
Low-flow profiles of the upper Ocmulgee and Flint rivers in Georgia
R.F. Carter, E. H. Hopkins, H. Perlman
1986, Water-Resources Investigations Report 86-4176
This report provides low-flow information for use in evaluating the capacity of streams to supply withdrawals or to accept waste loads from potential new industries without exceeding the limits of State water-quality standards. The report is the first phase of a study of all stream basins north of the Fall...
Preliminary map showing the thickness of glacial deposits in Ohio
D. R. Soller
1986, Miscellaneous Field Studies Map 1862
This map was compiled as part of a U.S. Geological Survey project to portray the character and thickness of glacial deposits east of the Rocky Mountains. It is a preliminary map, compiled at a scale of 1:250,000 from sources of differing type and quality (fig. I, table 1). County drift-thickness...
Application of a parameter-estimation technique to modeling the regional aquifer underlying the eastern Snake River plain, Idaho
Stephen P. Garabedian
1986, Water Supply Paper 2278
A nonlinear, least-squares regression technique for the estimation of ground-water flow model parameters was applied to the regional aquifer underlying the eastern Snake River Plain, Idaho. The technique uses a computer program to simulate two-dimensional, steady-state ground-water flow. Hydrologic data for the 1980 water year were used to calculate recharge...
Cost effectiveness of the stream-gaging program in Ohio
H.L. Shindel, W.P. Bartlett
1986, Water-Resources Investigations Report 85-4072
This report documents the results of the cost effectiveness of the stream-gaging program in Ohio. Data uses and funding sources were identified for 107 continuous stream gages currently being operated by the U.S. Geological Survey in Ohio with a budget of $682,000; this budget includes field work for other projects...
Methods and computer program documentation for determining anisotropic transmissivity tensor components of two-dimensional ground-water flow
M.L. Maslia, R.B. Randolph
1986, Open-File Report 86-227
The theory of anisotropic aquifer hydraulic properties and a computer program, written in Fortran 77, developed to compute the components of the anisotropic transmissivity tensor of two-dimensional groundwater flow are described. To determine the tensor components using one pumping well and three observation wells, the type-curve and straight-line approximation methods...
Ground-water availability and water quality at Southbury and Woodbury, Connecticut
D. L. Mazzaferro
1986, Water-Resources Investigations Report 84-4221
Increases in population and commercial and industrial development during the past 20 years have increased the demand for water in the Towns of Southbury and Woodbury, Connecticut. The stratified-drift aquifer, underlying much of the Pomperaug River valley, is the most practical source for additional large supplies. The yield of the...
Water Resources Data for California, water year 1984. Volume 4. Northern Central Valley Basins and the Great Basin from Honey Lake Basin to Oregon State Line
R. P. Fogelman, J.R. Mullen, W.F. Shelton, R.G. Simpson, D.A. Grillo
1986, Water Data Report CA-84-4
Water resources data for the 1984 water year for California consists of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 4 contains discharge records for 152 gaging stations; stage and contents for 25...
Analysis of fixed-station water-quality data in the Umpqua River basin, Oregon
J. F. Rinella
1986, Water-Resources Investigations Report 85-4253
An appraisal of surface water quality in the Umpqua River basin was made using existing monthly data collected by the Oregon Department of Environmental Quality and the U.S. Geological Survey in cooperation with the Douglas County Water Resources Survey. This appraisal was limited to interpretation of instantaneous monthly water quality...
Magnitude and frequency of high flows of unregulated streams in Kansas
Paul Robert Jordan
1986, Water Supply Paper 2280
Information on high-flow magnitude and frequency is needed for hydrologic evaluation of such factors as flood-control storage and dam safety. High-flow information given in this report is for streamflows unaffected by major regulation, such as by large reservoirs. High-flow magnitude and frequency data are given for 91 streamflow-gaging stations throughout...
Operating manual for the digital data-collection system for flow-control structures
J.I. Rorabaugh, W.L. Rapp
1986, Open-File Report 85-691
This manual was written to help the user operate and maintain the digital data collection system for flow control structures. The system is used to measure daily discharge through river control dams. These dams commonly have tainter gates which are raised and lowered to keep the upper pool level relatively...
Ground-water monitoring at Santa Barbara, California: Phase 3 — Development of a three-dimensional digital ground-water flow model for storage unit I of the Santa Barbara ground-water basin
Peter Martin, Charles Berenbrock
1986, Water-Resources Investigations Report 86-4103
Water-bearing rocks within the 7 sq mi of Storage Unit I of the Santa Barbara Groundwater Basin, consist of unconsolidated deposits that range in thickness from < 300 ft along the north perimeter of the unit to > 1,000 ft near the Pacific Ocean. The groundwater system was simulated as...
Assessment of low-flow water quality in Richland Creek, Illinois
W.O. Freeman, A.R. Schmidt
1986, Water-Resources Investigations Report 86-4323
To study the effects of urbanization on water quality, the relations of several stream processes to concentrations of dissolved oxygen and other constituents were evaluated during low-flow periods for a 30.1-mi reach of Richland Creek in southwestern Illinois. The study used both measured data and computer simulations. Reaeration rates and...
Water resources data for Hawaii and other Pacific areas, water year 1985: Volume 1. Hawaii
Water Resources Division, U.S. Geological Survey, Salwyn S.W. Chinn, Grace A. Tateishi, Johnson J.S. Yee
1986, Water Data Report HI-85-1
Water resources data for the 1985 water year for Hawaii and other Pacific Areas consist of records of stage, discharge, and water quality of streams and springs; and water levels and water quality in wells. This report, volume 1, contains discharge records for 98 gaging stations; water quality for 13...
Water resources data for Mississippi, water year 1984
E.J. Tharpe, F. Morris, W. T. Oakley
1986, Water Data Report MS-84-1
Water resources data for the 1987 water year for Mississippi consist of records of stage, discharge, and water quality of streams; stage, and water quality of lakes and reservoirs; and water levels and water quality of ground-water wells. This report contains records of water discharge at 78 gaging stations; stage...
Development and evaluation of habitat suitability criteria for use in the instream flow incremental methodology
Ken D. Bovee
1986, Report, Instream Flow Information Paper #21
The Instream Flow Incremental Methodology (IFIM) is a habitat-based tool used to evaluate the environmental consequences of various water and land use practices. As such, knowledge about the conditions that provide favorable habitat for a species, and those that do not, is necessary for successful implementation of the methodology. In...
Effects of urbanization on streamflow, sediment loads, and channel morphology in Pheasant Branch basin near Middleton, Wisconsin
W.R. Krug, G. L. Goddard
1986, Water-Resources Investigations Report 85-4068
A 5-year, data-collection and modeling study was conducted on Pheasant Branch basin in and near Middleton, Wisconsin. The objectives of the study were to: (1) describe the streamflow characteristics, sediment transport, and stream-channel morphology in the Pheasant Branch basin; and (2) relate the above factors to changes caused by urbanization...
Ground-water resource assessment of the Montauk area, Long Island, New York
K. R. Prince
1986, Water-Resources Investigations Report 85-4013
The water resources of the Montauk area were investigated from October 1980 through September 1983 to assess the availability of fresh groundwater. The principal aquifer, which consists of fine- to coarse-grained stratified glacial drift, is the sole source of freshwater. The freshwater/saltwater interface lies as much as 150 ft below...
Lithic breccia and ignimbrite erupted during the collapse of Crater Lake Caldera, Oregon
T. H. Druitt, C. R. Bacon
1986, Journal of Volcanology and Geothermal Research (29) 1-32
The climactic eruption of Mount Mazama (6845 y.B.P.) vented a total of ∼50 km3 of compositionally zoned rhyodacitic to basaltic magma from: (a) a single vent as a Plinian pumice fall deposit and the overlying Wineglass Welded Tuff, and (b) ring vents as ignimbrite and coignimbrite lithic breccia accompanying the collapse...
Organic metamorphism in the Lower Mississippian-Upper Devonian Bakken shales. Part 1: Rock-Eval pyrolysis and vitrinite reflectance
L.C. Price, T. Daws, M. Pawlewicz
1986, Journal of Petroleum Geology (9) 125-162
Detailed organic geochemistry has been performed on a large number of Lower Mississippian-Upper Devonian Bakken shales from the North Dakota portion of the Williston Basin, and 28 oils mainly from Mississippian Madison Group rocks from different basinal areas. Here we report results of Rock-Eval pyrolysis and vitrinite reflectance (Ro) analyses....
Geologic history of Goban Spur, Northwest Europe continental margin
P.C. de Graciansky, Claude (Wylie) Poag
1985, Initial reports of the Deep Sea Drilling Project (80) 1187-1216
Drilling on Leg 80 of the Deep Sea Drilling Project-International Phase of Ocean Drilling was conducted on a transect of four sites (548-551) across the continent-ocean boundary at Goban Spur, a prominent southwest-trending structural and topographic high on the Irish continental slope. Drilling results have been integrated with physiographic, gravimetric,...