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.
Filter Total Items: 5321
Biologically-mediated flux of trace metals from streams to riparian spiders: a large scale survey in mineralized alpine ecosystems
No abstract available.
Authors
J.M. Kraus, R. B. Wanty, T.S. Schmidt, D.M. Walters, C. A. Stricker
Exploring the potential for a fused Landsat-MODIS snow covered area product
Results from nine 3 x 3 km study areas in the Rocky Mountains of Colorado, USA demonstrate there is potential for using sporadically acquired Landsat images in combination with daily coarse resolution fractional snow covered area (SCA) images to produce daily high resolution binary SCA images. The results also highlight several challenges to implementing this type of approach. The approach describ
Authors
David J. Selkowitz
Quantifying Lateral Migration of Sequestered Carbon Dioxide Based on Rock Properties and Permeability Classifications
No abstract available.
Authors
Lauri A. Burke
Catfish science: Status and trends in the 21st century
Catfish science, the study of the fish order Siluriformes, is a diverse and expanding field in terms of advances and breadth of topics. We compiled literature from primary fisheries journals as an index of interest and advances in catfish science to examine temporal trends in the field. The number of catfish scientific publications varied over the past century with strong peaks during 1975–1979 an
Authors
Thomas J. Kwak, Mark T. Porath, Paul H. Michaletz, Vincent H. Travnichek
Developing a regional canopy fuels assessment strategy using multi-scale lidar
Accurate assessments of canopy fuels are needed by fire scientists to understand fire behavior and to predict future fire occurrence. A key descriptor for canopy fuels is canopy bulk density (CBD). CBD is closely linked to the structure of the canopy; therefore, lidar measurements are particularly well suited to assessments of CBD. LANDFIRE scientists are exploring methods to integrate airborne an
Authors
Birgit E. Peterson, Kurtis Nelson
Undiscovered hydrocarbon resources in the U.S. Gulf Coast Jurassic Norphlet and Smackover Formations
The U.S. Geological Survey has completed assessments of undiscovered technically recoverable oil and gas resources in the Jurassic Norphlet and Smackover formations of the onshore coastal plain and State waters of the U.S. Gulf Coast. The Norphlet Formation consists of sandstones and interbedded shales and siltstones deposited during a marine transgression. Along its northeast margin, deposition o
Authors
Ofori N. Pearson
Assessment of bats for white-nose syndrome at El Malpais National Monument and adjacent lands
No abstract available.
Authors
Ernest Valdez
Assessment of in-place oil shale resources of the Eocene Green River Formation, a foundation for calculating recoverable resources
The recently completed assessment of in-place resources of the Eocene Green River Formation in the Piceance Basin, Colorado; the Uinta Basin, Utah and Colorado; and the Greater Green River Basin Wyoming, Colorado, and Utah and their accompanying ArcGIS projects will form the foundation for estimating technically-recoverable resources in those areas. Different estimates will be made for each of the
Authors
Ronald C. Johnson, Tracy J. Mercier
Using dissolved gases to observe the evolution of groundwater age in a mountain watershed over a period of thirteen years
Baseflows in snowmelt-dominated mountain streams are critical for sustaining ecosystems and water resources during periods of greatest demand. Future climate predictions for mountainous areas throughout much of the western U.S. include increasing temperatures, declining snowpacks, and earlier snowmelt periods. The degree to and rate at which these changes will affect baseflows in mountain streams
Authors
Andrew H. Manning
Molecular genetic insights into the biology of Trumpeter Swans
No abstract available.
Authors
Sara J. Oyler-McCance
Temporal and spatial distribution of landslides in the Redwood Creek Basin, Northern California
Mass movement processes are a dominant means of supplying sediment to mountainous rivers of north coastal California, but the episodic nature of landslides represents a challenge to interpreting patterns of slope instability. This study compares two major landslide events occurring in 1964-1975 and in 1997 in the Redwood Creek basin in north coastal California. In 1997, a moderate-intensity, long-
Authors
Mary Ann Madej
Energy and conservation benefits from managed prairie biomass
Marginally productive land, such as that enrolled in the Conservation Reserve Program (CRP), may provide acreage and economic incentives for cellulosic energy production. Improving the yields from these lands will help establish a biomass producer's position in the marketplace. The effects of water and nitrogen on biomass yields were investigated in both a plot-scale experiment and a broad-scale s
Authors
Jacob M. Jungers, Jared J. Trost, Clarence L. Lehman, David Tilman