Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9967
Index of surface-water stations in Texas, January 1988
As of January 1, 1988, the surface-water data-collection network in Texas included 368 continuous streamflow, 12 continuous or daily reservoir-content, 38 gage height, 15 crest-stage partia 1-record, 4 periodic discharge through range, 32 floodhydrocjraph partial-record, 9 flood-profile partial-record, 36 low-flow partial-record 45 daily chemical-quality, 19 continuous-recording water-quality, 83
The geochemical evolution of aqueous sodium in the Black Creek Aquifer, Horry and Georgetown counties, South Carolina
The Black Creek aquifer contains dilute seawater near the North Carolina State line, probably the result of incomplete flushing of ancient seawater. Data do not indicate that the dilute seawater has migrated toward areas of fresh ground-water withdrawals. The concentration of chloride in ground-water samples ranges from 5 to 720 milligrams per liter and that of sodium from 160 to 690 milligrams pe
Authors
Allen L. Zack, Ivan Roberts
Simulation of flow in the Edwards Aquifer, San Antonio region, Texas, and refinement of storage and flow concepts
The Edwards aquifer is a complexly faulted, carbonate aquifer lying within the Balcones fault zone of south-central Texas. The aquifer consists of thin- to massive-bedded limestone and dolomite, most of which is in the form of mudstones and wackestones. Well-developed secondary porosity has formed in association with former erosional surfaces within the carbonate rocks, within dolomitized-burrowed
Authors
Robert W. Maclay, Larry F. Land
Effects of highway runoff on streamflow and water quality in the Sevenmile Creek basin, a rural area in the Piedmont Province of North Carolina, July 1981 to July 1982
An evaluation of water-quality data from streams that receive stormwater runoff from a segment of Interstate Highway 85 in North Carolina indicated increased levels of many constituents compared to levels in nearby undeveloped basins. Additional data collected from a network of dry and wet atmospheric deposition collectors, lysimeter samples, soil surveys, wind measurements, and road sweepings hel
Authors
Douglas Harned
Simulation of saltwater movement in the Floridan aquifer system, Hilton Head Island, South Carolina
Freshwater to supply Hilton Head Island, S.C., is obtained from the upper permeable zone of the Upper Floridan aquifer. Long-term pumping at Savannah, Ga., and the steadily increasing pumping on Hilton Head Island, have lowered Upper Floridan heads near the center of the island from about 10 feet above sea level to about 6 to 7 feet below sea level. The seaward hydraulic gradient that existed befo
Authors
Peter W. Bush
Aircraft MSS data registration and vegetation classification of wetland change detection
Portions of the Savannah River floodplain swamp were evaluated for vegetation change using high resolution (5a??6 m) aircraft multispectral scanner (MSS) data. Image distortion from aircraft movement prevented precise image-to-image registration in some areas. However, when small scenes were used (200-250 ha), a first-order linear transformation provided registration accuracies of less than or equ
Authors
E.J. Christensen, J.R. Jensen, Elijah W. Ramsey, H.E. Mackey
Habitat islands and the equilibrium theory of island biogeography: testing some predictions
Species-area data from a study of marsh birds are used to test five predictions generated by the equilibrium theory of island biogeography. Three predictions are supported: we found a significant species-area relationship, a non-zero level of turnover, and a variance-mean ratio of 0.5. One prediction is rejected: the extinction rates were not greater on small islands. The results of one test are e
Authors
M. Brown, J.J. Dinsmore
Environmental impacts and regulatory policy. Implications of spray disposal of dredged material in Louisiana wetlands
The capabilities of a new wetland dredging technology were assessed along with associated newly developed state and federal regulatory policies to determine if policy expectations realistically match the technological achievement. Current regulatory practices require amelioration of spoil bank impacts upon abandonment of an oil/gas well, but this may not occur for many years or decades, if at all.
Authors
Donald R. Cahoon, J.H. Cowan
Fuelwood production and use in rural Swaziland: a case-study of two communities
Information of fuelwood consumption and the local production of wood was collected in two small rural communities in Swaziland. Fuelwood consumption was estimated to be 0.77 t persona??1 yeara??1 in one community (Sigombeni), and 0.63 t persona??1 in the other (Bhekinkhosi). Bhekinkhosi was found to be experiencing a significant fuelwood production/consumption deficit and it expected that Sigomben
Authors
J. A. Allen, D.P. Pimentel, J.P. Lasoie
Compilation of hydrologic data for the Edwards Aquifer, San Antonio area, Texas, 1987, with 1934-87 summary
No abstract available.
Authors
G.M. Nalley, P.L. Rettman
Compilation of hydrologic data for the Edwards aquifer, San Antonio area, Texas, 1986, with 1934-86 summary
No abstract available.
Authors
G. B. Ozuna, G.M. Nalley, W.G. Stein
Records of wells, drillers' logs, water-level measurements, and chemical analyses of ground water in Harris and Galveston counties, Texas, 1980-84
No abstract available.
Authors
J. F. Williams, L. S. Coplin, C. E. Ranzau, W. B. Lind, C.W. Bonnet, G.L. Locke