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Glenn G. Patterson

Publications and source records attributed to Glenn G. Patterson.

5 recordsLinked to original sources
USGS1995

Changes in bathymetry for Lake Katherine and Wood Lake, Richland County, South Carolina, 1989-93

Bathymetric surveys of Lake Katherine and Wood Lake, small residential lakes in Columbia, South Carolina, were made in 1989 and 1993. During this period the combined volume of the lakes decreased by 519,000 cubic feet (11.9 acre-feet). Most of the decrease in volume occurred in the northern part of Lake Katherine where deltaic sediment deposits at the mouth of Gills Creek increased in thickness during the 4-year period. The sediment was derived from a combination of sources in the Gills Creek Basin upstream from the lakes. Construction of a highway and a housing development in the Basin were significant factors in the sedimentation.

South Carolina↗
USGS1988

Bathymetry of Lakes Marion and Moultrie, South Carolina, 1984-85

Lakes Marion and Moultrie are two large, interconnected reservoirs in the Coastal Plain of South Carolina. Bathymetric surveys during 1984-85 determined that, for the full-pool water surface elevation of 76.8 ft, the volume of Lake Marion is 1,425 ,000 acre-ft, and for the full-pool water surface elevation of 75.0 ft, the volume of Lake Moultrie is 1,060,000 acre-ft. These volumes are considered accurate to within 5%. Comparison with volumes determined in 1941, when the reservoirs were filled, shows decreased in volume of 73,000 acre-ft in Lake Marion and 30,000 acre-ft in Lake Moultrie. These changes in volume, however, are subject to relatively large possible error because they represent relatively small differences between relatively large volumes, and because the accuracy of the 1941 volumes is not known. Measurements of sediment inflow and outflow and of deposition rate suggest the volume losses were more likely about 29,000 acre-ft in Lake Marion and about 1,600 acre-ft in Lake Moultrie. The discrepancy in the estimate of volume changes does not affect the accuracy of the volume computation or the maps. (USGS)

South Carolina↗
USGS1985

Hydrology and its effects on distribution of vegetation in Congaree Swamp National Monument, South Carolina

Congaree Swamp National Monument preserves a large stand of old-growth southern bottomland hardwood forest on the flood plain of the Congaree River. The distribution of vegetation types in the Monument is controlled by duration of saturated soil conditions during the growing season, which is related to duration of inundation by the flooding river. During dry periods upland streams fed by seepage from shallow and deep aquifers supply water to the flood plain, and the potentiometric gradient in the flood plain slopes toward the river. During floods river water flows into the flood plain through breaches in the natural levee, inundating as much as 90 percent of the Monument an average of once per year. During floods the potentiometric gradient briefly slopes away from the river. The frequency of large floods has decreased slightly since completion of Lake Murray Dam in 1929.

South Carolina↗
USGS1981

Quantitative geomorphology of drainage basins in Sumter National Forest, South Carolina

This report describes a computer program, written in Basic, that facilitates quantitative analysis of drainage basins and channel networks. The program was used to inventory 2,000 small watersheds in Sumter National Forest, South Carolina during 1980 and 1981. Drainage basins and stream segments were delineated in color on mylar overlays over U.S. Geological Survey 1:24 ,000-scale maps. Drainage basin characteristics were quantified and stored on eight-inch diskettes. The program can produce printouts and plots that summarize geomorphic data for each watershed. The program is adaptable to other locations. (USGS)

Open-File Report↗