Conference Papers
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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.
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Trace elements and pesticides in Salton Sea area, California
Concentrations of numerous potentially toxic trace elements and pesticides were determined in water, sediment, and biota from the Salton Sea area in southestern California. Comparison of results with data from other studies in this area and from other areas, and with various water-quality standards or criteria, indicate that selenium probably is the principal contaminant of concern in the Salton S
Authors
Roy A. Schroeder, James G. Setmire, John C. Wolfe
Transient spatial patterns in plankton communities: Blooms and traveling waves of phytoplankton in estuaries
No abstract available.
Authors
T.M. Powell, S. Willmot, J. D. Murray, V. S. Manoranjan, J. E. Cloern
Using side scan sonar data in a geographic information system to locate and display lake trout spawning habitat in the Great Lakes
The National Fisheries Research Center-Great Lakes of the U.S. Fish and Wildlife Service has extensively used a side scan sonar to survey and pinpoint lake trout spawning grounds in the Great Lakes. The Geographic Information System (GIS) of the National Ecology Research Center produced maps from the side scan sonar data showing the exact location of the spawning grounds; this will enable current
Authors
Charles L. Brown, Thomas A. Edsall, Robert G. Waltermire, Barbara White
Landsat-assisted vegetation mapping of Innoko National Wildlife Refuge, Alaska
No abstract available.
Authors
Stephen S. Talbot, Carl Markon
Methods and applications in surface depression analysis
Gridded surface data sets are often incorporated into digital data bases, but extracting information from the data sets requires specialized raster processing techniques different from those historically used on remotely sensed and thematic data. Frequently, the information desired of a gridded surface is directly related to the topologic peaks and pits of the surface. A method for isolating these
Authors
Susan K. Jenson, Charles M. Trautwein
Trip C; Structure and stratigraphy above, below, and within the Taconic unconformity, southeastern New York
No abstract available.
Authors
Jack B. Epstein, Peter T. Lyttle
An algorithm for locating candidate labelling boxes within a polygon
Vector-based geographic information systems usually require annotation, such as a polygon number or attribute data, in a suitable location within a polygon. Traditional methods usually compute the polygon centroid, test the centroid for inclusion or exclusion, and select some alternative point when the centroid falls outside the polygon. Two problems are associated with this approach: (1) the text
Authors
Jan W. van Roessel
Energetic constraints on winter habitat selection by cervids in Glacier National Park
No abstract available.
Authors
K.J. Jenkins, R. G. Wright
Metamorphic core complexes, Mesozoic ductile thrusts, and Cenozoic detachments: Old Woman Mountains: Chemehuevi Mountains transect, California and Arizona
No abstract available.
Authors
Keith A. Howard, B.E. John, C. F. Miller
Wetland changes in coastal Alabama
No abstract available.
Authors
E. Randy Roach, Mary C. Watzin, James D. Scurry, James B. Johnston
Effects of wetland channelization of storm runoff in Lambert Creek, Ramsey County, Minnesota
No abstract available.
Authors
R. G. Brown
Small-scale soil maps in the United States as prototypes for handling soils in a global geographic information system
No abstract available.
Authors
Norman B. Bliss, William U. Reybold