Conference Papers
Science Quality and Integrity
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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.
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Assessing variability and trends in Arctic sea ice distribution using satellite data
Trends in the annual minimum, minimum monthly-mean, and the sea ice extent at the end of August were investigated for the Barents and western Kara Seas and adjacent parts of the Arctic Ocean during 1966 to 1994 using data from Russian ice maps (1974-1994), Kosmos-Okean and ALMAZ SAR satellite series (1984-1994), and published literature. Four definitions of sea ice extent were examined based on th
Authors
G. I. Belchansky, Ilia N. Mordvintsev, David C. Douglas
Bottom characteristics of an ocean disposal site off Honolulu, Hawaii: time-based navigational trackline data managed by routes and events
No abstract available
Authors
Florence L. Wong, Michael R. Hamer, Monty A. Hampton, Michael E. Torresan
Damaging earthquakes: A scientific laboratory
This paper reviews the principal lessons learned from multidisciplinary postearthquake investigations of damaging earthquakes throughout the world during the past 15 years. The unique laboratory provided by a damaging earthquake in culturally different but tectonically similar regions of the world has increased fundamental understanding of earthquake processes, added perishable scientific, technic
Authors
Walter W. Hays
Dispersion of adult Cancer magister at Glacier Bay, Alaska: Variation with spatial scale, sex, and reproductive status
Patterns of micro- to mesoscale distribution of Dungeness crabs (Cancer magister) in nearshore habitats at five locations in and near Glacier Bay National Park were revealed using subtidal transects. Sampling was conducted in April and September 1992 and 1993 and April 1994. Divers censused crabs by sex and reproductive status (ovigerous/nonovigerous females) along belt transects (2 m x 100 m) per
Authors
Charles E. O'Clair, Thomas C. Shirley, S. James Taggart
Earthquake prediction: The interaction of public policy and science
Earthquake prediction research has searched for both informational phenomena, those that provide information about earthquake hazards useful to the public, and causal phenomena, causally related to the physical processes governing failure on a fault, to improve our understanding of those processes. Neither informational nor causal phenomena are a subset of the other. I propose a classification of
Authors
L.M. Jones
Effect of a thiamine antagonist on blood thiamine levels in lake trout
No abstract available at this time
Authors
E. Lee, D. C. Honeyfield
Effects of agricultural practices and vadose zone stratigraphy on nitrate concentration in ground water in Kansas, USA
Differences in nitrate-N concentrations in,around water in Kansas can be explained by variations in agricultural practices and vadose-zone stratigraphy. In northwestern Kansas, past use of a local stream for tailwater runoff from irrigation and high fertilizer applications for sugar-beet farming resulted in high nitrate-N concentrations (12-60 mg L-1; in both soil and ground water. Nitrogen isotop
Authors
M.A. Townsend, R. O. Sleezer, S.A. Macko
Effects of supplementation with hatchery fish on carrying capacity and productivity of naturally spawning populations of steelhead
No abstract available
Authors
R.R. Reisenbichler
Experimental early-stage coalification of a peat sample and a peatified wood sample from Indonesia
Experimental coalification of a peat sample and a buried wood sample from domed peat deposits in Indonesia was carried out to examine chemical structural changes in organic matter during early-stage coalification. The experiment (125 C, 408 atm lithostatic pressure, and 177 atm fluid pressure for 75 days) was designed to maintain both lithostatic and fluid pressure on the sample, but allow by-prod
Authors
W. H. Orem, S.G. Neuzil, H.E. Lerch, C. B. Cecil
Frequency analyses for recent regional floods in the United States
During 1993-95, significant floods that resulted in record-high river stages, loss of life, and significant property damage occurred in the United States. The floods were caused by unique global weather patterns that produced large amounts of rain over large areas. Standard methods for flood-frequency analyses may not adequately consider the probability of recurrence of these global weather patter
Authors
Nick B. Melcher, Patsy G. Martinez
Geology and geothermal potential of Alid volcanic center, Eritrea, Africa
Alid volcanic center, a 700-meter-tall mountain in Eritrea, northeast Africa, straddles the axis of an active crustal-spreading center called the Danakil Depression. Boiling-temperature fumaroles are common on Alid, and their gas compositions indicate a reservoir temperature of at least 250 ??C. The history of volcanism and the high reservoir temperature indicated by the Alid fumarole gases sugges
Authors
Michael A. Clynne, Wendell A. Duffield, Robert O. Fournier, Leake W. Giorgis, Cathy J. Janik, Gabreab Kahsai, Jacob Lowenstern, Kidane W. Mariam, James G. Smith, Theoderos Tesfai
Historical perspectives on riparian ecosystems of Colorado
No abstract available.
Authors
M. L. Scott, J. M. Friedman, G.T. Auble, P. Anderson