Airborne electromagnetic and magnetic survey data of the Paradox and San Luis Valleys, Colorado
Lyndsay B. Ball, Benjamin R. Bloss, Paul A. Bedrosian, V. J. S. Grauch, Bruce D. Smith
2015, Open-File Report 2015-1024
In October 2011, the U.S. Geological Survey (USGS) contracted airborne magnetic and electromagnetic surveys of the Paradox and San Luis Valleys in southern Colorado, United States. These airborne geophysical surveys provide high-resolution and spatially comprehensive datasets characterizing the resistivity structure of the shallow subsurface of each survey region, accompanied by...
Proceedings of the 9th U.S.-Japan natural resources panel for earthquake research
Shane T. Detweiler, William L. Ellsworth, editor(s)
2015, Open-File Report 2014-1250
Introduction The UJNR Panel on Earthquake Research promotes advanced study toward a more fundamental understanding of the earthquake process and hazard estimation. The Ninth Joint meeting was extremely beneficial in furthering cooperation and deepening understanding of problems common to both the U.S. and Japan. The meeting included productive exchanges of information...
Efficacy of Pseudomonas fluorescens (Pf-CL145A) spray dried powder for controlling zebra mussels adhering to test substrates
James A. Luoma, Todd J. Severson, Kerry L. Weber, Denise A. Mayer
2015, Open-File Report 2015-1050
A mobile bioassay trailer was used to assess the efficacy of Pseudomonas fluorescens (Pf-CL145A) spray dried powder (SDP) formulation for controlling zebra mussels (Dreissena polymorpha) from two midwestern lakes: Lake Carlos (Alexandria, Minnesota) and Shawano Lake (Shawano, Wisconsin). The effects of SDP exposure concentration and exposure duration on zebra mussel survival were...
Evaluation of two juvenile salmon collection devices at Cowlitz Falls Dam, Washington, 2014
Tobias J. Kock, Theresa L. Liedtke, Brian K. Ekstrom, William Hurst
2015, Open-File Report 2015-1054
Collection of juvenile salmon at Cowlitz Falls Dam is a critical part of the effort to restore salmon in the upper Cowlitz River, Washington. Many of the fish that are not collected pass downstream and enter Riffe Lake, become landlocked, and are lost to the anadromous population. In addition to...
Use of satellite images to determine surface-water cover during the flood event of September 13, 2013, in Lyons and western Longmont, Colorado
Christopher J. Cole, Beverly A. Friesen, Earl M. Wilson, Stanley R. Wilds, Suzanne M. Noble
2015, Open-File Report 2015-1042
The flooding that occurred in north-central Colorado in 2013 was some of the most destructive in the state’s history. Following a summer of drought and wildfires, a wet weather system stalled over the Front Range area from Fort Collins in the north to Colorado Springs in the south, including the...
Community for Data Integration 2013 Annual Report
Michelle Y. Chang, Jennifer Carlino, Christopher Barnes, David L. Blodgett, Andrew R. Bock, Anthony L. Everette, Gregory L. Fernette, Lorraine E. Flint, Janice M. Gordon, David L. Govoni, Lauren E. Hay, Heather S. Henkel, Megan Hines, Sally L. Holl, Collin G. Homer, Vivian B. Hutchison, Drew A. Ignizio, Tim J. Kern, Frances L. Lightsom, Steven L. Markstrom, Michael S. O’Donnell, Jacquelyn L. Schei, Lorna A. Schmid, Kathryn M. Schoephoester, Peter N. Schweitzer, Susan K. Skagen, Daniel J. Sullivan, Colin Talbert, Meredith Pavlick Warren
2015, Open-File Report 2015-1005
The U.S. Geological Survey (USGS) conducts earth science to help address complex issues affecting society and the environment. In 2006, the USGS held the first Scientific Information Management Workshop to bring together staff from across the organization to discuss the data and information management issues affecting the integration and delivery...
Surface and subsurface microgravity data in the vicinity of Sanford Underground Research Facility, Lead, South Dakota
Jeffrey R. Kennedy, Karl R. Koth, Rob Carruth
2015, Open-File Report 2015-1043
Absolute gravity data were collected at 32 stations in the vicinity of the Sanford Underground Research Facility from 2007 through 2014 for the purpose of monitoring groundwater storage change during dewatering of the former Homestake gold mine in the Black Hills of South Dakota, the largest and deepest underground mine...
A survey of Bureau of Land Management employees on collaboration and alternative dispute resolution
Emily W. Ruell, Nina Burkardt, Ryan M. Donovan
2015, Open-File Report 2015-1015
The Bureau of Land Management (BLM) has been actively expanding its capacity to work cooperatively with other agencies, Tribes, the public, and other stakeholders using collaborative and alternative dispute resolution (ADR) approaches. In 1997, the BLM created the BLM’s Collaboration and Alternative Dispute Resolution Program (Collaboration/ADR Program) to centralize, strengthen,...
Laboratory and field tests of the Sutron RLR-0003-1 water level sensor
Janice M. Fulford, R. Scott Bryars
2015, Open-File Report 2014-1217
Three Sutron RLR-0003-1 water level sensors were tested in laboratory conditions to evaluate the accuracy of the sensor over the manufacturer’s specified operating temperature and distance-to-water ranges. The sensor was also tested for compliance to SDI-12 communication protocol and in field conditions at a U.S. Geological Survey (USGS) streamgaging site....
Data categories for marine planning
Frances L. Lightsom, Giancarlo Cicchetti, Charles M. Wahle
2015, Open-File Report 2015-1046
The U.S. National Ocean Policy calls for a science- and ecosystem-based approach to comprehensive planning and management of human activities and their impacts on America’s oceans. The Ocean Community in Data.gov is an outcome of 2010–2011 work by an interagency working group charged with designing a national information management system...
Monitoring avian productivity and survivorship (MAPS) 5-year summary, Naval Outlying Landing Field, Imperial Beach, southwestern San Diego County, California, 2009-13
Suellen Lynn, Melanie C. Madden, Alexandra Houston, Barbara E. Kus
2015, Open-File Report 2015-1035
During 2009–13, a Monitoring Avian Productivity and Survivorship (MAPS) banding station was operated at the Naval Outlying Landing Field (NOLF), Imperial Beach, in southwestern San Diego County, California. The station was established as part of a long-term monitoring program of Neotropical migratory bird populations on NOLF and helps Naval Base...
Land-cover change in the Gulf Coastal Plains and Ozarks Landscape Conservation Cooperative, 1973 to 2000
Mark A. Drummond, Michael P. Stier, Alisa W. Coffin
2015, Open-File Report 2015-1018
This report summarizes baseline land-cover change information for four time intervals from between 1973 and 2000 for the Gulf Coastal Plains and Ozarks Landscape Conservation Cooperative (LCC). The study used sample data from the USGS Land Cover Trends dataset to develop estimates of change for 10 land-cover classes in the...
Bibliography for acid-rock drainage and selected acid-mine drainage issues related to acid-rock drainage from transportation activities
Mike Bradley, Scott C. Worland
2015, Open-File Report 2015-1016
Acid-rock drainage occurs through the interaction of rainfall on pyrite-bearing formations. When pyrite (FeS2) is exposed to oxygen and water in mine workings or roadcuts, the mineral decomposes and sulfur may react to form sulfuric acid, which often results in environmental problems and potential damage to the transportation infrastructure. The...
Sea-floor morphology and sedimentary environments in western Block Island Sound, offshore of Fishers Island, New York
Katherine Y. McMullen, Lawrence J. Poppe, William W. Danforth, Dann S. Blackwood, William G. Winner, Castle E. Parker
2015, Open-File Report 2014-1224
Multibeam-bathymetric and sidescan-sonar data, collected by the National Oceanic and Atmospheric Administration in a 114-square-kilometer area of Block Island Sound, southeast of Fishers Island, New York, are combined with sediment samples and bottom photography collected by the U.S. Geological Survey from 36 stations in this area in order to interpret...
The distribution of submersed aquatic vegetation and water lettuce in the fresh and oligohaline tidal Potomac River, 2007
Sarah Hunter Campbell, Nancy B. Rybicki, Edward R. Schenk
2015, Open-File Report 2014-1259
Surveys documenting the composition of species of submersed aquatic vegetation (SAV) have been conducted in the Potomac River for decades. These surveys can help managers assess the proportion of native and exotic plants in the river or can be used to determine relationships between native and exotic plants, environmental conditions,...
Geochemical maps of stream sediments in central Colorado, from New Mexico to Wyoming
Robert G. Eppinger, Stuart A. Giles, Terry L. Klein
2015, Open-File Report 2015-1025
The U.S. Geological Survey has completed a series of geologic, mineral resource, and environmental assessment studies in the Rocky Mountains of central Colorado, from Leadville eastward to the range front and from New Mexico to the Wyoming border. Regional stream-sediment geochemical maps, useful for assessing mineral resources and environmental effects...
Laboratory electrical resistivity analysis of geologic samples from Fort Irwin, California
Benjamin R. Bloss, Paul A. Bedrosian
David C. Buesch, editor(s)
2015, Open-File Report 2013-1024-E
Correlating laboratory resistivity measurements with geophysical resistivity models helps constrain these models to the geology and lithology of an area. Throughout the Fort Irwin National Training Center area, 111 samples from both cored boreholes and surface outcrops were collected and processed for laboratory measurements. These samples represent various lithologic types...
Fire history of Everglades National Park and Big Cypress National Preserve, southern Florida
Thomas J. Smith III, Ann M. Foster, John W. Jones
2015, Open-File Report 2015-1034
Fire occurs naturally in the environment on most continents, including Africa (Ryan and Williams, 2011), Asia (Kauhanen, 2008), Australia (Kutt and Woinarski, 2007), Europe (Eshel and others, 2000), South America (Fidelis and others, 2010), and North America (Van Auken, 2000). Antarctica appears to be the only continent that has no...
Estimation of occupancy, breeding success, and predicted abundance of golden eagles (Aquila chrysaetos) in the Diablo Range, California, 2014
J. David Wiens, Patrick S. Kolar, Mark R. Fuller, W. Grainger Hunt, Teresa Hunt
2015, Open-File Report 2015-1039
We used a multistate occupancy sampling design to estimate occupancy, breeding success, and abundance of territorial pairs of golden eagles (Aquila chrysaetos) in the Diablo Range, California, in 2014. This method uses the spatial pattern of detections and non-detections over repeated visits to survey sites to estimate probabilities of occupancy...
Validation of eDNA markers for New Zealand mudsnail surveillance and initial eDNA monitoring at Mississippi River Basin sites
Christopher M. Merkes, Keith N. Turnquist, Christopher B. Rees, Jon J. Amberg
2015, Open-File Report 2015-1037
The performance of newly developed New Zealand mudsnail (Potamopyrgus antipodarum; NZMS) genetic markers for environmental (eDNA) analysis of water were compared across two laboratories. The genetic markers were tested in four quantitative polymerase chain reaction assays targeting two regions of the NZMS mitochondrial genome, specifically the cytochrome c oxidase subunit...
Resilience and risk: a demographic model to inform conservation planning for polar bears
Eric V. Regehr, Ryan H. Wilson, Karyn D. Rode, Michael C. Runge
2015, Open-File Report 2015-1029
Climate change is having widespread ecological effects, including loss of Arctic sea ice. This has led to listing of the polar bear (Ursus maritimus) and other ice-dependent marine mammals under the U.S. Endangered Species Act (ESA). Methods are needed to evaluate the effects of climate change on population persistence to...
Obtaining valid geologic models from 3-D resistivity inversion of magnetotelluric data at Pahute Mesa, Nevada
Brian D. Rodriguez, Donald S. Sweetkind
2015, Open-File Report 2015-1019
We summarize the results of a three-dimensional (3-D) resistivity inversion simulation that we conducted with the intent of characterizing the subsurface 3-D distribution of volcanic composite units of Pahute Mesa, Nevada, without any a priori information on the actual 3-D distribution of the known subsurface geology. The 3-D methodology involved...
GRIDGEN Version 1.0: a computer program for generating unstructured finite-volume grids
Jyh-Ming Lien, Gaisheng Liu, Christian D. Langevin
2015, Open-File Report 2014-1109
GRIDGEN is a computer program for creating layered quadtree grids for use with numerical models, such as the MODFLOW–USG program for simulation of groundwater flow. The program begins by reading a three-dimensional base grid, which can have variable row and column widths and spatially variable cell top and bottom elevations....
Seismicity of the Earth 1900-2013, seismotectonics of South America (Nazca Plate Region)
Gavin P. Hayes, Gregory M. Smoczyk, Harley M. Benz, Kevin P. Furlong, Antonio Villaseñor
2015, Open-File Report 2015-1031-E
The South American arc extends over 7,000 kilometers (km), from the Chilean margin triple junction offshore of southern Chile, to its intersection with the Panama fracture zone, offshore of the southern coast of Panama in Central America. It marks the plate boundary between the subducting Nazca plate and the South...
Analysis of historic agricultural irrigation data from the Natural Resources Conservation Service monitoring and evaluation for Grand Valley, Lower Gunnison Basin, and McElmo Creek Basin, western Colorado, 1985 to 2003
John W. Mayo
2015, Open-File Report 2014-1261
The Natural Resources Conservation Service Monitoring and Evaluation for three salinity control units in western Colorado—Grand Valley, Lower Gunnison, and McElmo Creek—from 1985 to 2003 was a response to the Colorado River Basin Salinity Control Act, Public Law 93–320, July 24, 1974, and its amendments. The Natural Resources Conservation Service...
