Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

184617 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 5087, results 127151 - 127175

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
White clays of Pennsylvania
John W. Hosterman
1984, Bulletin 1558-D
The white clays of Pennsylvania are composed chiefly of kaolinite and various amounts of illite. Most of the white clays are silty and a few are sandy. Quartz or chert is the only nonclay mineral in the whitest material; goethite is also present in the colored samples high in iron....
Water resources data, Georgia, water year 1983
W.R. Stokes, T.W. Hale, J. L. Pearman, G. R. Buell
1984, Water Data Report GA-83-1
Water resources data for the 1983 water year for Georgia consists of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and ground-water levels. This report contains discharge records of 104 gaging stations; stage for 11 gaging stations; stage and contents for 17...
Water resources data, Pennsylvania, water year 1983. Volume 2: Susquehanna and Potomac River basins
J.W. Buchanan, W.C. Loper, W.P. Schaffstall, R.A. Hainly
1984, Water Data Report PA-83-2
Water resources data for the 1983 water year for Pennsylvania consist of records of discharge and water quality of streams; contents of lakes and reservoirs; and water levels, and water quality of ground-water wells. This volume contains records for water discharge at 84 stations; contents at 13 lakes and reservoirs,...
Basic concepts of kinematic-wave models
J.E. Miller
1984, Professional Paper 1302
The kinematic-wave model is one of a number of approximations of the dynamic-wave model. The dynamic-wave model describes onedimensional shallow-water waves (unsteady, gradually varied, openchannel flow). This report provides a basic reference on the theory and applications of the kinematic-wave model and describes the limitations of the model in relation...
Water resources and potential hydrologic effects of oil-shale development in the southeastern Uinta Basin, Utah and Colorado
K.L. Lindskov, B. A. Kimball
1984, Professional Paper 1307
Proposed oil-shale mining in northeastern Utah is expected to impact the water resources of a 3,000-square-mile area. This report summarizes a comprehensive hydrologic investigation of the area which resulted in 13 published reports. Hydrologic information obtained during 1974-80 was used to evaluate the availability of water and to evaluate potential...
Magnitude and frequency of floods from urban streams in Leon County, Florida
M.A. Franklin, G.T. Losey
1984, Water-Resources Investigations Report 84-4004
Techniques are provided for estimating flood magnitudes for urban-flow streams in Leon County, Florida, for recurrence intervals of 2, 5, 10, 25, 50, 100, and 500 years. Synthetic flood peaks were generated by using a calibrated lumped-parameter rainfall-runoff model, pan evaporation data from Milton, Florida, and long-term unit rainfall records...
Percentage change in saturated thickness of the High Plains Aquifer, west-central Kansas, 1950 to average 1982-84
Marilyn E. Pabst, Barbara J. Dague
1984, Water-Resources Investigations Report 84-4357
Continuing studies are being made in west-central Kansas to provide up-to-date information to aid in the management of ground water for irrigation.  This report, prepared in cooperation with the Western Kansas Groundwater Management District No. 1, presents the fourth in a series of studies that uses a statistical technique, called...
The ground-water system and simulated effects of ground-water withdrawals in northern Utah Valley, Utah
D.W. Clark
1984, Water-Resources Investigations Report 85-4007
The effects of withdrawals from the principal ground-water reservoir in northern Utah Valley, Utah, were projected by means of a three-dimensional, finite-difference, digital-computer model, which was constructed to study and simulate the ground-water system. The model was calibrated against (1) water levels measured in 1947, which were assumed to represent...
Literature review and need for additional study of surface-water quality in the Cuyahoga Valley National Recreation Area, Ohio
C.J. Childress
1984, Open-File Report 84-619
The Cuyahoga Valley National Recreation Area encompasses about 24 miles of the middle reach of the Cuyahoga River and parts of four major tributaries -- Furnace Run, Brandywine Creek, Chippewa Creek, and TInkers Creek. Water quality in this reach does not meet Ohio water-quality standards for dissolved oxygen, fecal bacteria,...
Application of the conjugate-gradient method to ground-water models
T.A. Manteuffel, D.B. Grove, Leonard F. Konikow
1984, Water-Resources Investigations Report 83-4009
The conjugate-gradient method can solve efficiently and accurately finite-difference approximations to the ground-water flow equation. An aquifer-simulation model using the conjugate-gradient method was applied to a problem of ground-water flow in an alluvial aquifer at the Rocky Mountain Arsenal, Denver, Colorado. For this application, the accuracy and efficiency of the...