Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16746
National research council study on the effects of trawling and dredging on seafloor habitat National research council study on the effects of trawling and dredging on seafloor habitat
No abstract available.
Authors
J. Steele, Sally J. Roberts, D.L. Alverson, P.J. Auster, J.S. Collie, J.T. DeAlteris, Linda A. Deegan, E. Briones, S.J. Hall, Gordon H. Kruse, C. Pomeroy, Kathryn M. Scanlon, P. Weeks
Thermal property measurements in Tetrahydrofuran (THF) hydrate and hydrate-bearing sediment between -25 and +4°C, and their application to methane hydrate Thermal property measurements in Tetrahydrofuran (THF) hydrate and hydrate-bearing sediment between -25 and +4°C, and their application to methane hydrate
No abstract available.
Authors
William F. Waite, L.Y. Gilbert, William J. Winters, David H. Mason
Effect of grain size and pore pressure on acoustic and strength behavior of sediments containing methane gas hydrate Effect of grain size and pore pressure on acoustic and strength behavior of sediments containing methane gas hydrate
No abstract available.
Authors
William J. Winters, William F. Waite, D.H. Mason, L.Y. Gilbert, I.A. Pecher
Mapping the geology of the seafloor Mapping the geology of the seafloor
No abstract available.
Authors
B.D. Andrews, B. Butman
Effects of removing Good Hope Mill Dam on selected physical, chemical, and biological characteristics of Conodoguinet Creek, Cumberland County, Pennsylvania Effects of removing Good Hope Mill Dam on selected physical, chemical, and biological characteristics of Conodoguinet Creek, Cumberland County, Pennsylvania
The implications of dam removal on channel characteris-tics, water quality, benthic invertebrates, and fish are not well understood because of the small number of removals that have been studied. Comprehensive studies that document the effects of dam removal are just beginning to be published, but most research has focused on larger dams or on the response of a sin-gle variable (such as...
Authors
Jeffrey J. Chaplin, Robin A. Brightbill, Michael D. Bilger
Bird use of reforestation sites: Influence of location and vertical structure Bird use of reforestation sites: Influence of location and vertical structure
In the Lower Mississippi Valley, more than 300,000 acres of agricultural land have been reforested in the last 10 years. Planning decisions on how and where to restore forest are complex and usually reflect landowner objectives. However, initial planning decisions may have a large influence on the value of restored stands for birds and other wildlife. Reforestation of small, isolated...
Authors
Daniel J. Twedt, Robert Cooper
Factors affecting the toxicity of methylmercury injected into eggs Factors affecting the toxicity of methylmercury injected into eggs
We developed a standardized protocol for comparing the sensitivities of the embryos of different bird species to methylmercury when methylmercury was injected into their eggs. During the course of developing this protocol, we investigated the effects of various factors on the toxicity of the injected methylmercury. Most of our experiments were done with chicken (Gallus domesticus)...
Authors
G. H. Heinz, D. J. Hoffman, S. L. Kondrad, C. A. Erwin
Radiochemical sampling and analysis of shallow ground water and sediment at the BOMARC Missile Facility, east-central New Jersey, 1999-2000 Radiochemical sampling and analysis of shallow ground water and sediment at the BOMARC Missile Facility, east-central New Jersey, 1999-2000
A field sampling experiment was designed using low-flow purging with a portable pump and sample-collection equipment for the collection of water and sediment samples from observation wells screened in the Kirkwood-Cohansey aquifer system to determine radionuclide or trace-element concentrations for various size fractions. Selected chemical and physical characteristics were determined for...
Authors
Zoltan Szabo, Otto S. Zapecza, Jeannette H. Oden, Donald E. Rice
Hydrogeologic setting and conceptual hydrologic model of the Spring Creek Basin, Centre County, Pennsylvania, June 2005 Hydrogeologic setting and conceptual hydrologic model of the Spring Creek Basin, Centre County, Pennsylvania, June 2005
The Spring Creek Basin, Centre County, Pa., is experiencing some of the most rapid growth and development within the Commonwealth. This trend has resulted in land-use changes and increased water use, which will affect the quantity and quality of stormwater runoff, surface water, ground water, and aquatic resources within the basin. The U.S. Geological Survey (USGS), in cooperation with...
Authors
John W. Fulton, Edward H. Koerkle, Steven D. McAuley, Scott A. Hoffman, Linda F. Zarr
The Digital Shoreline Analysis System (DSAS) version 3.0, an ArcGIS extension for calculating historic shoreline cange The Digital Shoreline Analysis System (DSAS) version 3.0, an ArcGIS extension for calculating historic shoreline cange
No abstract available.
Authors
E. Robert Thieler, Emily A. Himmelstoss, Jessica L. Zichichi, Tara L. Miller
Bacteriological water quality in the Lake Pontchartrain basin, Louisiana, following Hurricanes Katrina and Rita, September 2005 Bacteriological water quality in the Lake Pontchartrain basin, Louisiana, following Hurricanes Katrina and Rita, September 2005
The U.S. Geological Survey (USGS), in collaboration with the Louisiana Department of Environmental Quality, monitored bacteriological quality of water at 22 sites in and around Lake Pontchartrain, La., for three consecutive weeks beginning September 13, 2005, following hurricanes Katrina and Rita and the associated flooding. Samples were collected and analyzed by USGS personnel from the...
Authors
Donald M. Stoeckel, Rebecca N. Bushon, Dennis K. Demcheck, Stanley C. Skrobialowski, Christopher M. Kephart, Erin E. Bertke, Brian E. Mailot, Scott V. Mize, Robert B. Fendick