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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Estimation of environmental properties for inorganic compounds using LSER
The Great Lakes Science Center has devised values for inorganic species for use in the environmental property- predictive quantitative structure-activity relationships (QSAR) Linear Solvation Energy Relationship (LSER). Property estimation has been difficult for inorganic species. In this presentation aqueous solubility, bioconcentration and acute aquatic toxicity are estimated for inorganic com
Authors
James P. Hickey
Evolution of composition of major mineral phases in layered complex of ophiolite assemblage: Evidence for the Voykar ophiolites (Polar urals, Russia)
We present a detailed study of compositional variation of major minerals through a cross section of the layered complex of the Late Devonian Voykar ophiolite assemblage (Polar Urals). The principal characteristics of this layered complex suggest crystallization from a periodically replenished open magma system in a tectonically dynamic, oceanic environment. The complex may be described in terms of
Authors
E.V. Sharkov, A.V. Chistyakov, E. E. Laz'ko, J. E. Quick
Factors associated with temporal variation in EMS: Research task report on early mortality syndrome workshop
No abstract available at this time
Authors
J. Fitzsimons, S.B. Brown, D. C. Honeyfield, D. E. Tillitt, J. Zajicek, J.G. Hnath
General-circulation-model simulations of future snowpack in the western United States
April 1 snowpack accumulations measured at 311 snow courses in the western United States (U.S.) are grouped using a correlation-based cluster analysis. A conceptual snow accumulation and melt model and monthly temperature and precipitation for each cluster are used to estimate cluster-average April 1 snowpack. The conceptual snow model is subsequently used to estimate future snowpack by using chan
Authors
G.J. McCabe, D. M. Wolock
Genetic changes from artificial propagation of Pacific salmon affect the productivity and viability of supplemented populations
Although several studies have shown genetic differences between hatchery and wild anadromous Pacific salmon (Oncorhynchus spp.), none has provided compelling evidence that artificial propagation poses a genetic threat to conservation of naturally spawning populations. When the published studies and three studies in progress are considered collectively, however, they provide strong evidence that th
Authors
R.R. Reisenbichler, S.P. Rubin
Geologic and climatic controls on the formation of the Permian coal measures in the Sohagpur Coal Field, Madhya Pradesh, India
No abstract available.
Authors
Robert C. Milici, Peter D. Warwick, Abhijit Mukhopadhyay, Siri Adhikari, S.P. Roy, Sudip Bhattacharyya
Global to local scale simulations of streamflow in the Merced, American, and Carson Rivers, Sierra Nevada, California
Atmospheric moisture transport and moisture budgets during winter (December-April) simulated by the National Centers for Environmental Prediction (NCEP) regional spectral model (RSM) are examined and used to simulate streamflow variations in the Sierra Nevada. The RSM was nested in 2"-latitude x 2"-longitude NCEPreanalyzed atmospheric-data fields (as a surrogate for a perfect forecast system opera
Authors
M. D. Dettinger, D.R. Cayan, K. Mo, A.E. Jeton
Health impacts of domestic coal use in China
Domestic coal combustion has had profound adverse effects on the health of millions of people worldwide. In China alone several hundred million people commonly burn raw coal in unvented stoves that permeate their homes with high levels of toxic metals and organic compounds. At least 3,000 people in Guizhou Province in southwest China are suffering from severe arsenic poisoning. The primary source
Authors
R. B. Finkelman, H. E. Belkin, B. Zheng
Holocene chronology for lunette dune deposition on the Southern High Plains, USA
Lunettes flank the margins of numerous ephemeral lakes that occur across the Southern High Plains of the United States. While their genesis is closely associated with the hydrology of the adjacent lake systems, the detailed inter-relationships between climate changes and geomorphological and hydrological changes upon the lake-lunette system has been hindered by an absence of reliable age control.
Authors
J. Rich, S. Stokes, W.W. Wood
Implications of climate change for Alaska's seabirds
Seabirds are prominent and highly visible components of marine ecosystems that will be affected by global climate change. The Bering Sea region is particularly important to seabirds; populations there are larger and more diverse than in any similar region in North America—over 90% of seabirds breeding in the continental United States are found in this region. Seabirds, so named because they spend
Authors
Rosa Meehan, G. Vernon Byrd, George J. Divoky, John F. Piatt
Including long-term biological index performance in a multi-criteria Decision Support System
A Decision Support System (DSS) was developed for the reservoirs operated by the U.S. Bureau of Reclamation that incorporates biological resources in a palette of decision variables. A scoring technique was developed for the DSS to help to evaluate the long-term effects of proposed reservoir system operations on those variables. The biological component of the DSS was developed to help Bureau of R
Authors
T. Waddle, Z. Bowen, K.D. Bovee
Individual-based modelling as an integrative approach in theoretical and applied population dynamics and food web studies
No abstract available.
Authors
Wolf M. Mooij, Donald L. DeAngelis