Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9967
Technique for estimating the magnitude and frequency of floods in Texas
Drainage area, slope, and mean annual precipitation were the only factors that were statistically significant at the 95-percent confidence level when the characteristics of the drainage basins were used as independent variables in a multiple-regression flood-frequency analysis of natural, unregulated streams in Texas. The State was divided into six regions on the basis of the distribution of the r
Authors
E.E. Schroeder, B.C. Massey
Techniques for Estimating Flood-Depth Frequency Relations on Natural Streams in Georgia
Regional relations are defined for estimating the depth of floods having recurrence intervals of 10, 50, and 100 years on streams with natural flow in Georgia.
Multiple-regression analysis of station data is used to define the relations between flood depths and frequency for streams draining from 1 to 1,000 square miles, and for 10 climatological and physical basin characteristics.
The analy
Authors
McGlone Price
Preliminary flood-frequency relations for urban streams, Metropolitan Atlanta, Georgia
A method is presented for estimating the magnitude and frequency of floods for urban streams in metropolitan Atlanta. The method is based on adjustments to the natural stream flood-frequency and rainfall-frequency characteristics of the local area as defined by urban flood studies in other areas.The effects of urbanization on flood-peak runoff are estimated from the percentage of drainage basin th
Authors
Harold G. Golden
Digital model analysis of the principal artesian aquifer, Savannah, Georgia area
A digital model of the principal artesian aquifer has been developed for the Savannah, Georgia, area. The model simulates the response of the aquifer system to various hydrologic stresses. Model results of the water levels and water-level changes are shown on maps. Computations may be extended in time, indicating changes in pumpage were applied to the system and probable results calculated. Drawdo
Authors
H. B. Counts, R.E. Krause
Technique for estimating magnitude and frequency of floods in Illinois
A technique is presented for estimating flood magnitudes at recurrence intervals ranging from 2 to 500 years, for unregulated rural streams in Illinois, with drainage areas ranging from 0.02 to 10,000 square miles. Multiple regression analyses, using streamflow data from 241 sampling sites, were used to define the flood-frequency relationships. The independent variables drainage area, slope, rainf
Authors
George W. Curtis
Effects of abandoned lead and zinc mines and tailings piles on water quality in the Joplin area, Missouri
No abstract available.
Authors
J.H. Barks
Geologic data from test drilling in Palm Beach County, Florida since 1970
Test hole data, in Palm Beach County, Florida, include lithologic logs from 66 test wells and geophysical logs from 54 test wells. The purpose of the study is to provide the geohydrologic information needed for water management and land use decisions, with emphasis on the urbanized eastern part of the county and the readily developable area in the central part. (Woodard-USGS)
Authors
James J. Schneider
Simulations of water-level drawdowns in proposed well-field areas, Dade County, Florida
Electrical analog model simulations of hydraulic conditions in the Biscayne aquifer were made at proposed inland well-field sites in Dade County, Florida. Simulated drawdowns of water levels after 7 months of continuous pumping at 50, 100, and 150 million gallons per day were obtained at each site. Simultaneous pumping of each of the sites at 50 million gallons per day showed that after 7 months p
Authors
Howard Klein
Ground-water quality at the site of a proposed deep-well injection system for treated wastewater, West Palm Beach, Florida
The U.S. Geological Survey collected scientific and technical information before, during, and after construction of a deep test well at the location of a future regional waste-water treatment plant to be built for the city of West Palm Beach, Florida. Data from the test well will be used by the city in the design of a proposed deep-well injection system for disposal of effluent from the treatment
Authors
William A. J. Pitt, Frederick W. Meyer
Nitrogen and phosphorus uptake in the Everglades Conservation Areas, Florida, with special reference to the effects of backpumping runoff
In much of the water pumped into the northern Everglades, Florida, concentrations of inorganic nitrogen and phosphorus are relatively high. These nutrients are transported in the canals or into the peripheral marshes. Concentrations decrease sharply within 330 feet or less of the canals, whereas specific conductance remains essentially unchanged within this distance. The sharp decrease in inorgani
Authors
Benjamin F. McPherson, Bradley G. Waller, H. C. Mattraw
Analog-model simulations for secondary canal controls and forward pumping water-management schemes in southeast Florida
The analog model of the Biscayne aquifer of southeast Florida was used to approximate the effects of two proposed water-management schemes. One involved adding a secondary control structure in a major canal which is controlled near the coast. In the model the controls were operated in accordance with canal water level both above and below the secondary control. Although the model could not differe
Authors
E. H. Cordes, Richard Alfred Gardner
Analysis of selected benthic communities in Florida Everglades with reference to their physical and chemical environment
Species diversity and numbers of benthic macroinvertebrates were determined at 12 sites, both canals and marshes, in the Everglades of south Florida. The values calculated are used to indicate long-term trends in water quality and variations between study areas.Species diversity at all sites was generally in a range indicative of degraded water quality. The number of organisms per square metre of
Authors
Bradley G. Waller