Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9969
Streamflow analysis of the Apalachicola, Pearl, Trinity, and Nueces River basins, southeastern United States
Annual mean streamflow and annual minimum and maximum daily mean streamflows were compared with associated annual index precipitation for sites on the main channels and tributaries of four major rivers that discharge directly into the Gulf of Mexico. Long- and short-term precipitation trends were identified for selected streamflow stations with at least 40 years of record.
Long-term temporal trend
Authors
K.E. Greene, R.M. Slade
Persistent environmental contaminants in fish and wildlife
The publication of Silent Spring (Carson 1962) highlighted the potential for dichlorodiphenyl trichloroethane (DDT) and other pesticides that persist in the environment to accumulate in and to harm fish, wildlife, and the ecosystems upon which they depend. The federal government responded in the mid-1960's by establishing a multi-agency program to monitor the concentrations of pesticides and, late
Authors
C. J. Schmitt, C. M. Bunck
Coastal ecosystem decision‐support GIS: Functions and methodology
To solve coastal resource and environmental issues and handle complex spatial data and information effectively and efficiently, a coastal ecosystem decision‐support geographic information system (GIS) is being developed at the Southern Science Center of the U.S. National Biological Service. With three subsystems, natural resource management, environmental impact assessment, and data and informatio
Authors
Wei Ji, James B. Johnson
Monitoring flooding in coastal wetlands by using radar imagery and ground-based measurements
Satellite radar was used in a Florida Juncus roemerianus marsh to map tidal flooding, a critical control of coastal vegetation distribution. Radar images taken during a time of near-continuous recordings of ground-based hydrology measurements directly linked marsh flooding to lowered radar returns and indicated a negative covariation between flood frequency and radar return. Flood-extent contours
Authors
Elijah Ramsey
Offspring growth in the California gull: Reproductive effort and parental experience hypotheses
Measures of adult feeding and foraging behaviour in the California gull, Larus californicus, were related to the growth of their offspring. Offspring showed significantly higher growth when average feeding interval, a measure of the time interval between feedings, and feeding latency following foraging decreased. The amount of time parents foraged was positively related to offspring growth and neg
Authors
Bruce H. Pugesek
What fish live in the streams of Metropolitan Atlanta?
No abstract available.
Authors
Carol A. Couch, Joe DeVivo, Byron J. Freeman
Geologic framework and hydrogeologic characteristics of the Edwards Aquifer outcrop, Hays County, Texas
All of the hydrogeologic subdivisions within the Edwards aquifer outcrop in Hays County have some porosity and permeability. The most porous and permeable appear to be hydrogeologic subdivision VI, the Kirschberg evaporite member of the Kainer Formation; hydrogeologic subdivision III, the leached and collapsed members, undivided; and hydrogeologic subdivision II, the cyclic and marine members, und
Authors
John A. Hanson, Ted A. Small
Documented and potential extreme peak discharges and relation between potential extreme peak discharges and probable maximum flood peak discharges in Texas
The U.S. Geological Survey, in cooperation with the Texas Department of Transportation, conducted a study of extreme flood potential for Texas. Potential extreme peak discharges, derived from the relation between documented extreme peak discharges and their contributing drainage areas, can provide valuable information concerning the maximum expected peak discharge that could occur at a stream site
Authors
William H. Asquith, Raymond M. Slade
Land use and nutrient concentrations and yields in selected streams in the Albemarle-Pamlico drainage basin, North Carolina and Virginia
Because nutrients can cause water-quaiity degradation, a major focus of NAWQA is to investigate effects of nutrients on surface- and ground-water quality. This report summarizes surface-water quality study design and land uses in the NAWQA Albemarle-Pamlico Drainage Basin study unit, one of 60 study units nationwide, and shows how nutrient concentrations are related to land uses at selected basins
Authors
M. D. Woodside, B.R. Simerl
Stratigraphic nomenclature and geologic sections of the Gulf Coastal Plain of Texas
Geologic sections showing the subsurface delineation of approximately 100 Stratigraphic units composing the Mesozoic and Cenozoic Eras illustrate the interrelation of these units across most of the Gulf Coastal Plain of Texas. The geologic names that constitute the nomenclature have been published, and the vast majority are approved for use by the U.S. Geological Survey. Four dip sections and four
Authors
E. T. Baker
Potential-scour assessments and estimates of maximum scour at selected bridges in Iowa
The results of potential-scour assessments at 130 bridges and estimates of maximum scour at 10 bridges in Iowa are presented. All of the bridges evaluated in the study are constructed bridges (not culverts) that are sites of active or discontinued streamflow-gaging stations and peak-stage measurement sites. The period of the study was from October 1991 to September 1994.
The potential-scour assess
Authors
E.E. Fischer
Index of stations— Surface-water data-collection network of Texas, September 1993
The U.S. Geological Survey's investigations of the water resources of Texas are conducted in cooperation with the Texas Water Development Board, river authorities, cities, counties, U.S. Army Corps of Engineers, Bureau of Reclamation, International Boundary and Water Commission, and others.
Investigations are under the general direction of R.O. Hawkinson, District Chief, Texas District. The addres