Conference Papers
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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
Filter Total Items: 5547
A geographic information systems approach to the analysis of contaminants in Galveston Bay A geographic information systems approach to the analysis of contaminants in Galveston Bay
No abstract available.
Authors
Marcia McNiff, P.F. Roscigno, Wei Ji
A matter of scale: damage from Hurricane Hugo (1989) to U.S. Virgin Islands reefs at the colony, community and whole reef level A matter of scale: damage from Hurricane Hugo (1989) to U.S. Virgin Islands reefs at the colony, community and whole reef level
Studies at Buck Island Reef National Monument (St. Croix) and Virgin Islands National Park (St. John) by scientists in the U.S. National Park Service Coral Reef Assessment Program re- vealed the effects of Humcane Hugo on individual coral species, community parameters, and overall reef structure. Effects of the storm varied with depth, coral species, location relative to the storm path...
Authors
Caroline S. Rogers
The effects of ingested plastic on growth and survival of albatross chicks The effects of ingested plastic on growth and survival of albatross chicks
We studied the effects of ingested plastic on the growth and survival of chicks of Laysan Albatrosses Diomedea immutabilis and Black-footed albatrosses D. nigripes on Midway Atoll during the nesting seasons of 1986 and 1987. Weights and proventricular contents of the chicks were determined periodically through the nesting cycle. Large (>22 cm1)volumes of plastic were present in the...
Authors
Paul R. Sievert, Louis Sileo
Using gis and image processing technology to assist wetland planning, protection, and restoration in coastal Louisiana Using gis and image processing technology to assist wetland planning, protection, and restoration in coastal Louisiana
No abstract available.
Authors
John Barras, James B. Johnston, Craig Johnson
234U/238U as a ground-water tracer, SW Nevada-SE California 234U/238U as a ground-water tracer, SW Nevada-SE California
The 234U/238U ratio of uranium in oxidizing ground waters is potentially an excellent ground-water tracer because of its high solubility and insensitivity to chemical reactions. Moreover, recent advances in analytical capability have made possible very precise uranium-isotopic analyses on modest (approx.100 ml) amounts of normal ground water. Preliminary results on waters from SW Nevada...
Authors
K.R. Ludwig, Z. E. Peterman, K. R. Simmons, E. D. Gutentag
A method for classifying land loss by morphology and process A method for classifying land loss by morphology and process
No abstract available.
Authors
L.D. Wayne, L. D. Britsch, M.R. Byrnes, S. Penland, S.J. Williams
Accessibility of geotechnical earthquake Engineering data and the need for data storage and dissemination standards Accessibility of geotechnical earthquake Engineering data and the need for data storage and dissemination standards
Ease of data access and data standards are two issues critical to the success of GIS technology when applied to earthquake hazards research problems that require geotechnical engineering and related data. Efforts to reduce data accession costs and to streamline the data exchange process will result in short-term cost and time saving and will add long-term value to the data sets...
Authors
Arthur C. Tarr
An empirical correlation between coal bed gas with Rock-Eval pyrolysis and 13c NMR results, Cretaceous Mesaverde and Meeteetse formations, Wind River basin, Wyoming An empirical correlation between coal bed gas with Rock-Eval pyrolysis and 13c NMR results, Cretaceous Mesaverde and Meeteetse formations, Wind River basin, Wyoming
No abstract available
Authors
C.E. Barker, T.C Bartke, Patrick G. Hatcher, T.A. Daws
Analysis of high resolution sidescan-sonar data: Applications to sea-floor mapping and resource evaluation Analysis of high resolution sidescan-sonar data: Applications to sea-floor mapping and resource evaluation
No abstract available.
Authors
Marguerite H. Gowen, W. C. Schwab, William W. Danforth
Analysis of streamflow in the Magby Creek basin near Columbus, Mississippi Analysis of streamflow in the Magby Creek basin near Columbus, Mississippi
No abstract available
Authors
P.C. Floyd
Annual and Spatial Variation of the Kelp Forest Fish Assemblage at San Nicolas Island, California Annual and Spatial Variation of the Kelp Forest Fish Assemblage at San Nicolas Island, California
The kelp forest fishes of San Nicolas Island, California were studied from 1981-1986 to examine the causes of among-site and among-year variation in the fish assemblages. Fish counts and seven physical and biological variables were recorded at six sites around the island every spring and fall. Over the study period, a total of 45 fish species from 18 families were recorded, though...
Authors
R.J. Cowen, James L. Bodkin