Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10361
Modeling fish community dynamics in Florida Everglades: Role of temperature variation Modeling fish community dynamics in Florida Everglades: Role of temperature variation
Temperature variation is an important factor in Everglade wetlands ecology. A temperature fluctuation from 17°C to 32°C recorded in the Everglades may have significant impact on fish dynamics. The short life cycles of some of Everglade fishes has rendered this temperature variation to have even more impacts on the ecosystem. Fish population dynamic models, which do not explicitly...
Authors
H. A. Al-Rabai’ah, H. L. Koh, Donald L. DeAngelis, Hooi-Ling Lee
Ground-water flow simulation and chemical and isotopic mixing equation analysis to determine source contributions to the Missouri River alluvial aquifer in the vicinity of the Independence, Missouri, well field Ground-water flow simulation and chemical and isotopic mixing equation analysis to determine source contributions to the Missouri River alluvial aquifer in the vicinity of the Independence, Missouri, well field
The city of Independence, Missouri, operates a well field in the Missouri River alluvial aquifer. Steady-state ground-water flow simulation, particle tracking, and the use of chemical and isotopic composition of river water, ground water, and well-field pumpage in a two-component mixing equation were used to determine the source contributions of induced inflow from the Missouri River and...
Authors
Brian P. Kelly
Simulated pond-aquifer interactions under natural and stressed conditions near Snake Pond, Cape Cod, Massachusetts Simulated pond-aquifer interactions under natural and stressed conditions near Snake Pond, Cape Cod, Massachusetts
A numerical model was used to simulate pond-aquifer interactions under natural and stressed conditions near Snake Pond, Cape Cod, Massachusetts. Simulation results show that pond-bottom hydraulic conductivity, which represents the degree of hydraulic connection between the pond and the aquifer, is an important control on these interactions. As this parameter was incrementally increased...
Authors
Donald A. Walter, John P. Masterson, Denis R. LeBlanc
The flood pulse concept in wetland restoration The flood pulse concept in wetland restoration
No abstract available.
Authors
Beth A. Middleton
Do pharmaceuticals, pathogens, and other organic wastewater contaminants persist when wastewater is used for recharge? Do pharmaceuticals, pathogens, and other organic wastewater contaminants persist when wastewater is used for recharge?
No abstract available.
Authors
G. Cordy, N. Duran, H. Bouwer, R. Rice, F. Adamsen, J. Askins, D.W. Kolpin, E. T. Furlong, S.D. Zaugg, M. T. Meyer, L. B. Barber
Hydrologic conditions and quality of rainfall and storm runoff in agricultural and rangeland areas in San Patricio County, Texas, 2000-2001 Hydrologic conditions and quality of rainfall and storm runoff in agricultural and rangeland areas in San Patricio County, Texas, 2000-2001
During 2000–2001, rainfall and runoff were monitored in one mixed agricultural watershed and two rangeland watersheds in San Patricio County, located in the Coastal Bend area of South Texas. During this period, five rainfall samples were collected and analyzed for selected nutrients. Ten runoff samples from nine runoff events were collected at the three watershed monitoring stations...
Authors
Darwin J. Ockerman
Water-quality and physical characteristics of streams in the Treyburn development area of Falls Lake watershed, North Carolina, 1994–98 Water-quality and physical characteristics of streams in the Treyburn development area of Falls Lake watershed, North Carolina, 1994–98
Treyburn is a 5,400-acre planned, mixed-use development in the upper Neuse River Basin of North Carolina. The development, which began in 1986, is located in the Falls Lake watershed near three water-supply reservoirs-Lake Michie to the north, Falls Lake to the southeast, and Little River Reservoir to the west. A study began in 1988 to determine the water-quality characteristics of...
Authors
C. J. Oblinger, Thomas F. Cuffney, Michael R. Meador, R. G. Garrett
Hydrogeology and water quality of the Upper Three Runs aquifer in the vicinity of the Gibson Road Landfill, Fort Gordon, Georgia, June-November 1999 Hydrogeology and water quality of the Upper Three Runs aquifer in the vicinity of the Gibson Road Landfill, Fort Gordon, Georgia, June-November 1999
Fort Gordon military installation, a U.S. Department of the Army facility, is located in east-central Georgia southwest of Augusta. The military base operates a three-phase unlined landfill—Gibson Road Landfill— to store a variety of wastes. Phases I and II stored only household wastes, and these phases were discontinued during the mid–1990s. Fort Gordon currently (1999) operates Phase...
Authors
Sherlyn Priest, Kristen Bukowski McSwain
Detection of fresh ground water and a contaminant plume beneath Red Brook Harbor, Cape Cod, Massachusetts, 2000 Detection of fresh ground water and a contaminant plume beneath Red Brook Harbor, Cape Cod, Massachusetts, 2000
Trichloroethene and tetrachloroethene were detected in ground water in a vertical interval from about 68 to 176 feet below sea level beneath the shoreline where the contaminant plume emanating from a capped landfill on the Massachusetts Military Reservation intersects Red Brook Harbor. The highest concentrations at the shoreline, about 15 micrograms per liter of trichloroethene and 1...
Authors
Timothy D. McCobb, Denis R. LeBlanc
Archive of boomer subbottom data collected during USGS cruise ATSV99045, northern North Carolina, October 9-27, 1999 Archive of boomer subbottom data collected during USGS cruise ATSV99045, northern North Carolina, October 9-27, 1999
No abstract available.
Authors
M.K. Capone, E.R. Thieler, D.R. Nichols, T.F. O’Brien
Simulated changes in the sources of ground water for public-supply wells, ponds, streams, and coastal areas on western Cape Cod, Massachusetts Simulated changes in the sources of ground water for public-supply wells, ponds, streams, and coastal areas on western Cape Cod, Massachusetts
No abstract available.
Authors
John P. Masterson, Kathryn M. Hess, Donald A. Walter, Denis R. LeBlanc
Pharmaceuticals, hormones, and other organic wastewater contaminants in U.S. streams Pharmaceuticals, hormones, and other organic wastewater contaminants in U.S. streams
A recent study by the Toxic Substances Hydrology Program of the U.S. Geological Survey (USGS) shows that a broad range of chemicals found in residential, industrial, and agricultural wastewaters commonly occurs in mixtures at low concentrations downstream from areas of intense urbanization and animal production. The chemicals include human and veterinary drugs (including antibiotics)...
Authors
Herbert T. Buxton, Dana W. Kolpin