Database compilation for the geologic map of the San Francisco volcanic field, north-central Arizona
Joseph A. Bard, David W. Ramsey, Edward W. Wolfe, George E. Ulrich, Christopher G. Newhall, Richard B. Moore, Norman G. Bailey, Richard F. Holm
2015, Data Series 961
The main component of this publication is a geologic map database prepared using geographic information system (GIS) applications. The geodatabase of geologic points, lines, and polygons was produced as a compilation from five adjoining map sections originally published as printed maps in 1987 (see references in metadata). Four of the...
Decision analysis to support development of the Glen Canyon Dam long-term experimental and management plan
Michael C. Runge, Kirk E. LaGory, Kendra Russell, Janet R. Balsom, R. Alan Butler, Coggins Jr., Katrina A. Grantz, John Hayse, Ihor Hlohowskyj, Josh Korman, James E. May, Daniel J. O’Rourke, Leslie A. Poch, James R. Prairie, Jack C. VanKuiken, Robert A. Van Lonkhuyzen, David R. Varyu, Bruce T. Verhaaren, Thomas D. Veselka, Nicholas T. Williams, Kelsey K. Wuthrich, Charles B. Yackulic, Robert P. Billerbeck, Glen W. Knowles
2015, Scientific Investigations Report 2015-5176
The U.S. Geological Survey, in cooperation with the Bureau of Reclamation, National Park Service, and Argonne National Laboratory, completed a decision analysis to use in the evaluation of alternatives in the Environmental Impact Statement concerning the long-term management of water releases from Glen Canyon Dam and associated management activities. Two...
Effects of drought and fire on bird communities of the Kofa National Wildlife Refuge, Arizona
Chris McCreedy, Charles van Riper III, Todd C. Esque, Abigail J. Darrah
2015, Open-File Report 2015-1240
Executive Summary The U.S. Government created the Kofa National Wildlife Refuge (Kofa NWR) in 1939 in response to a citizen campaign to improve desert bighorn sheep populations in Arizona. The Kofa NWR is mountainous and remote, and its management by the U.S. Fish and Wildlife Service (FWS) keeps anthropogenic disturbance levels...
Water quality trends in the Blackwater River watershed, West Virginia
Jessica Smith, Stuart A. Welsh, James T. Anderson, Ronald H. Fortney
2015, Southeastern Naturalist (14) 103-111
An understanding of historic and current water quality is needed to manage and improve aquatic communities within the Blackwater River watershed, WV. The Blackwater River, which historically offered an excellent Salvelinus fontinalis (Brook Trout) fishery, has been affected by logging, coal mining, use of off-road vehicles, and land development. Using information-theoretic methods,...
Paleoseismology of the Denali fault system at the Schist Creek site, central Alaska
Stephen F. Personius, Anthony J. Crone, Patricia A.C. Burns, Ned Rozell
2015, Open-File Report 2015-1225
Two hand-dug trenches at the Schist Creek site on the Denali fault system in central Alaska exposed evidence of four surface-rupturing earthquakes on the basis of upward terminations of fault strands and at least one buried, scarp-derived colluvial wedge. Limited radiocarbon ages provide some constraints on times of the ruptures....
Fish tag recovery from Anaho Island nesting colony, Pyramid Lake, Nevada
G. Gary Scoppettone, Mark C. Fabes, Peter H. Rissler, Donna Withers
2015, Open-File Report 2015-1242
In 2001, tags applied to the federally endangered species cui-ui (Chasmistes cujus) to study their population dynamics were discovered strewn throughout the American White Pelican (Pelecanus erythrorhynchos) nesting colony on Anaho Island, Pyramid Lake, Nevada. Cui-ui are endemic to Pyramid Lake, and Anaho Island harbors one of North America’s largest...
Flooding in the Northeastern United States, 2011
Thomas P. Suro, Mark A. Roland, Richard G. Kiah
2015, Professional Paper 1821
Flooding in the Northeastern United States during 2011 was widespread and record setting. This report summarizes peak streamflows that were recorded by the U.S. Geological Survey (USGS) during separate flooding events in February, March, April, May, July, August, and September. The flooding of late April, which combined snowmelt and heavy...
Geologic map of Alaska
Frederic H. Wilson, Chad Hults, Charles G. Mull, Susan M. Karl
2015, Scientific Investigations Map 3340
Summary This map and associated digital databases are the result of compilation and interpretation of published and unpublished 1:250,000-scale and limited 1:500,000- to 1:63,360-scale maps. Covering the entire state of Alaska, it reflects more than a century of work by a host of geologists and almost two decades of compilation work....
Using noble gas tracers to constrain a groundwater flow model with recharge elevations: A novel approach for mountainous terrain
Jessica M. Doyle, Tom Gleeson, Andrew H. Manning, K. Ulrich Mayer
2015, Water Resources Research (51) 8094-8113
Environmental tracers provide information on groundwater age, recharge conditions, and flow processes which can be helpful for evaluating groundwater sustainability and vulnerability. Dissolved noble gas data have proven particularly useful in mountainous terrain because they can be used to determine recharge elevation. However, tracer-derived recharge elevations have not been utilized...
Insights into controls on hexavalent chromium in groundwater provided by environmental tracers, Sacramento Valley, California, USA
Andrew H. Manning, Christopher T. Mills, Jean M. Morrison, Lyndsay B. Ball
2015, Applied Geochemistry (62) 186-199
Environmental tracers are useful for determining groundwater age and recharge source, yet their application in studies of geogenic Cr(VI) in groundwater has been limited. Environmental tracer data from 166 wells located in the Sacramento Valley, northern California, were interpreted and compared to Cr concentrations to...
Detecting sea-level hazards: Simple regression-based methods for calculating the acceleration of sea level
Kara S. Doran, Peter A. Howd, Sallenger Jr.
2015, Open-File Report 2015-1187
This report documents the development of statistical tools used to quantify the hazard presented by the response of sea-level elevation to natural or anthropogenic changes in climate and ocean circulation. A hazard is a physical process (or processes) that, when combined with vulnerability (or susceptibility to the hazard), results in...
Statistical summaries of selected Iowa streamflow data through September 2013
David A. Eash, Padraic S. O'Shea, Jared R. Weber, Kevin T. Nguyen, Nicholas L. Montgomery, Adrian J. Simonson
2015, Open-File Report 2015-1214
Statistical summaries of streamflow data collected at 184 streamgages in Iowa are presented in this report. All streamgages included for analysis have at least 10 years of continuous record collected before or through September 2013. This report is an update to two previously published reports that presented statistical summaries of...
U.S. States and Territories National Tsunami Hazard Assessment: Historical record and sources for waves – Update
Paula K. Dunbar, Craig S. Weaver
2015, Report
The first U.S. Tsunami Hazard Assessment (Dunbar and Weaver, 2008) was prepared at the request of the National Tsunami Hazard Mitigation Program (NTHMP). The NTHMP is a partnership formed between federal and state agencies to reduce the impact of tsunamis through hazard assessment, warning guidance, and mitigation. The assessment was...
Applied groundwater modeling, 2nd Edition
Mary P. Anderson, William W. Woessner, Randall J. Hunt
2015, Book
This second edition is extensively revised throughout with expanded discussion of modeling fundamentals and coverage of advances in model calibration and uncertainty analysis that are revolutionizing the science of groundwater modeling. The text is intended for undergraduate and graduate level courses in applied groundwater modeling and as a comprehensive reference...
Evaluation of multiple-frequency, active and passive acoustics as surrogates for bedload transport
Molly S. Wood, Ryan L. Fosness, Gregory Pachman, Mark Lorang, Diego Tonolla
2015, Conference Paper
The use of multiple-frequency, active acoustics through deployment of acoustic Doppler current profilers (ADCPs) shows potential for estimating bedload in selected grain size categories. The U.S. Geological Survey (USGS), in cooperation with the University of Montana (UM), evaluated the use of multiple-frequency, active and passive acoustics as surrogates for bedload...
Mercury concentrations of bluegill (Lepomis macrochirus) vary by sex
Charles P. Madenjian, James T. Francis, Jeffrey J. Braunscheidel, Joseph R. Bohr, Matthew J. Geiger, G. Mark Knottnerus
2015, Environments (2) 546-564
Patterns in relative differences in contaminant concentrations between the sexes across many species of fish may reveal clues for important behavioral and physiological differences between the sexes, and may also be useful in developing fish consumption advisories and efficient designs for programs meant to monitor contaminant levels in fish. We...
Rapid damage mapping for the 2015 M7.8 Gorkha earthquake using synthetic aperture radar data from COSMO-SkyMed and ALOS-2 satellites
Sang-Ho Yun, Kenneth W. Hudnut, Susan Owen, Frank Webb, Mark Simons, Patrizia Sacco, Eric Gurrola, Gerald Manipon, Cunren Liang, Eric Fielding, Pietro Milillo, Hook Hua, Alessandro Coletta
2015, Seismological Research Letters (86) 1549-1557
The 25 April 2015 Mw 7.8 Gorkha earthquake caused more than 8000 fatalities and widespread building damage in central Nepal. The Italian Space Agency’s COSMO–SkyMed Synthetic Aperture Radar (SAR) satellite acquired data over Kathmandu area four days after the earthquake and the Japan Aerospace Exploration Agency’s Advanced Land Observing Satellite-2 SAR satellite...
Facing a changing world: Thermal physiology of American pikas (Ochotona princeps)
Hans W Otto, James A Wilson, Erik A. Beever
2015, Western North American Naturalist (75) 429-445
American pikas (Ochotona princeps) are of concern with respect to warming montane temperatures; however, little information exists regarding their physiological ability to adapt to warming temperatures. Previous studies have shown that pikas have high metabolism and low thermal conductance, which allow survival during cold winters. It has been hypothesized that...
Research data services in academic libraries: Data intensive roles for the future?
Carol Tenopir, Dane Hughes, Suzie Allard, Mike Frame, Ben Birch, Robert Sandusky, Madison L. Langseth, Andrew Lundeen
2015, Journal of eScience Librarianship (4)
Objectives: The primary objectives of this study are to gauge the various levels of Research Data Service academic libraries provide based on demographic factors, gauging RDS growth since 2011, and what obstacles may prevent expansion or growth of services. Methods: Survey of academic institutions through stratified random sample of ACRL library...
GOES-derived fog and low cloud indices for coastal north and central California ecological analyses
Alicia A. Torregrosa, Cindy Combs, Jeff Peters
2015, Earth and Space Science (3) 46-67
Fog and low cloud cover (FLCC) changes the water, energy, and nutrient flux of coastal ecosystems. Easy-to-use FLCC data are needed to quantify the impacts of FLC on ecosystem dynamics during hot, dry Mediterranean climate summers. FLCC indices were generated from 26,000 hourly night and day FLCC maps derived from...
Mineral potential tracts for polymetallic Pb-Zn-Cu vein deposits (phase V, deliverable 71): Chapter I in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)
Georges Beaudoin
2015, Open-File Report 2013-1280-I
In Mauritania, mineral occurrences of the polymetallic Pb-Zn-Cu vein deposit type are found near the Florence-El Khdar shear zone in northeast Mauritania. The deposits visited were deemed representative of other similar occurrences and consist of quartz veins with trace sulfides. The low sulfide and Pb-Zn-Cu content in the quartz veins...
Mineral potential tracts for shoreline Ti-Zr placer deposits (phase V, deliverable 85): Chapter P in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)
Georges Beaudoin
2015, Open-File Report 2013-1280-P
Shoreline placer Ti deposits are composed of ilmenite, rutile, zircon, monazite, and magnetite in well-sorted, fine- to medium-grained sand in coastal dunes, beaches and inlets. In addition to titanium, zirconium, in particular, and rare earth elements (REE) have become a major source of value in shoreline placer deposits. Shoreline placer...
New insight into California’s drought through open data
Emily K. Read, Mary Bucknell, Megan Hines, James M. Kreft, Jessica M. Lucido, Jordan S. Read, Carl Schroedl, David M. Sibley, Shirley Stephan, Ivan Suftin, Phethala Thongsavanh, Jamon Van Den Hoek, Jordan I. Walker, Martin R Wernimont, Luke A. Winslow, Andrew N. Yan
2015, BayGEO Journal (8)
Historically unprecedented drought in California has brought water issues to the forefront of the nation’s attention. Crucial investigations that concern water policy, management, and research, in turn, require extensive information about the quality and quantity of California’s water. Unfortunately, key sources of pertinent data are unevenly distributed and frequently hard...
Interactive access to LP DAAC satellite data archives through a combination of open-source and custom middleware web services
Brian N. Davis, Jason Werpy, Aaron M. Friesz, Kevin Impecoven, Robert Quenzer, Tom Maiersperger, David J. Meyer
2015, IEEE Geoscience and Remote Sensing Letters (3) 8-20
Current methods of searching for and retrieving data from satellite land remote sensing archives do not allow for interactive information extraction. Instead, Earth science data users are required to download files over low-bandwidth networks to local workstations and process data before science questions can be addressed. New methods of extracting...
An evaluation of the relations between flow regime components, stream characteristics, species traits and meta-demographic rates of warmwater stream fishes: Implications for aquatic resource management
James T. Peterson, C.P. Shea
2015, River Research and Applications (31) 1227-1241
Fishery biologists are increasingly recognizing the importance of considering the dynamic nature of streams when developing streamflow policies. Such approaches require information on how flow regimes influence the physical environment and how those factors, in turn, affect species-specific demographic rates. A more cost-effective alternative could be the use of dynamic...
