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
Production and evaluation of YY-male Brook Trout to eradicate nonnative wild brook trout populations
Nonnative Brook Trout Salvelinus fontinalis were introduced throughout western North America in the early 1900s, resulting in widespread self-sustaining populations that are difficult to eradicate and often threaten native salmonid populations. A novel approach for their eradication involves use of YY male (MYY) Brook Trout (created in the hatchery by feminizing XY males and crossing them with nor
Authors
Patrick Kennedy, Daniel J. Schill, Kevin A. Meyer, Matthew R. Campbell, Ninh V. Vu, Michael J. Hansen
Remote measurement of surface-water velocity using infrared videography and PIV: a proof-of-concept for Alaskan rivers
Thermal cameras with high sensitivity to medium and long wavelengths can resolve features at the surface of flowing water arising from turbulent mixing.
Images acquired by these cameras can be processed with particle image velocimetry (PIV) to compute surface velocities based on the displacement of thermal features as they advect with the flow.
We conducted a series of field measurements to test
Authors
Paul J. Kinzel, Carl J. Legleiter, Jonathan M. Nelson, Jeffrey S. Conaway
Use of modflow drain package for simulating inter-basin transfer in abandoned coal mines
Simulation of groundwater flow in abandoned mines is difficult, especially where flux to and from mines is unknown or poorly quantified, and inter-basin transfer of groundwater occurs. A 3-year study was conducted in the Elkhorn area, West Virginia to better understand groundwater-flow processes and inter-basin transfer in above drainage abandoned coal mines. The study area was specifically select
Authors
Mark D. Kozar, Kurt J. McCoy
Protocol and results from the first season of captive-rearing whooping cranes for a non-migratory release in Louisiana
No abstract available
Authors
Glenn H. Olsen, Jane N. Chandler
Evaluation of performance of Taiwan housing stock and schools during the Mw6.4 Kaohsiung/Meinong Earthquake of February 6, 2016
The recent Kaohsiung Meinong Earthquake which occurred on February 6, 2016 affected several categories of building stock for which risk identification programs were previously developed by NCREE. A typical building type in the city of Tainan is a mixed-use three-to-five-story structure. The ground floor of this typical structure is an open-front commercial or manufacturing space, which is laterall
Authors
Ramon Gilsanz, Cathy Huang, Jessica Mandrick, Joe Mugford, Shyh-Jiann Hwang, Tsung-Chih Chiou, Mehmet Çelebi
Modeling martian thermal inertia in a distributed memory high performance computing environment
Modeling martian surface properties fusing high resolution, spatially enabled, remotely sensed data and derived thermophysical modeling is an essential tool for surface property characterization studies. In this work, we describe the development of a thermal inertia modeling tool that integrates the KRC thermal model and a nine-dimensional parameter interpolation with inputs draw from remotely sen
Authors
Jason Laura, Robin L. Fergason
Continuous monitoring of suspended sediment for reservoir management
No abstract available.
Authors
Kyle E. Juracek, Casey J. Lee, C.B. Gnau
Improving our understanding of hydraulic-electrical relations: A case study of the surficial aquifer in Emirate Abu Dhabi
Transmissivity is a bulk hydraulic property that can be correlated with bulk electrical properties of an aquifer. In aquifers that are electrically-resistive relative to adjacent layers in a horizontally stratified sequence, transmissivity has been shown to correlate with bulk transverse resistance. Conversely, in aquifers that are electrically-conductive relative to adjacent layers, transmissivit
Authors
Scott Ikard, Wade H. Kress
Influence of restored koa in supporting bird communities
Deforestation of Hawaiian forests has adversely impacted native wildlife, including forest birds, bats and arthropods. Restoration activities have included reforestation with the native koa (Acacia koa), a dominant canopy tree species that is easy to propagate, has high survivorship, and has fast growth rates. We review recent research describing the ecological benefits of koa restoration on wildl
Authors
Richard J. Camp, Eben H. Paxton, Stephanie G. Yelenik
Application of frequency- and time-domain electromagnetic surveys to characterize hydrostratigraphy and landfill construction at the Amargosa Desert Research Site, Beatty, Nevada
In 2014 and 2015, the U.S. Geological Survey (USGS), conducted frequency-domain electromagnetic (FDEM) surveys at the USGS Amargosa Desert Research Site (ADRS), approximately 17 kilometers (km) south of Beatty, Nevada. The FDEM surveys were conducted within and adjacent to a closed low-level radioactive waste disposal site located at the ADRS. FDEM surveys were conducted on a grid of north-south a
Authors
Eric A. White, Frederick D. Day-Lewis, Carole D. Johnson, John W. Lane
Bed texture mapping in large rivers using recreational-grade sidescan sonar
The size-distribution and spatial organization of bed sediment, or bed ‘texture’, is a fundamental attribute of natural channels and is one important component of the physical habitat of aquatic ecosystems. ‘Recreational-grade’ sidescan sonar systems now offer the possibility of imaging, and subsequently quantifying bed texture at high resolution with minimal cost, or logistical effort. We are inv
Authors
Daniel Hamill, Joseph M. Wheaton, Daniel D. Buscombe, Paul E. Grams, Theodore S. Melis
Case study: 2016 Natural glide and wet slab avalanche cycle, Going-to-the-Sun Road, Glacier National Park, Montana, USA
The Going-to-the-Sun Road (GTSR) is the premier tourist attraction in Glacier
National Park, Montana. The GTSR also traverses through and under 40 avalanche paths which
pose a hazard to National Park Service (NPS) road crews during the annual spring snow plowing
operation. Through a joint collaboration between the NPS and the U.S. Geological Survey
(USGS), a forecasting program primarily dealing w
Authors
Jacob Hutchinson, Erich H. Peitzsch, Adam Clark