Water quality at a biosolids-application area near Deer Trail, Colorado, 1993-1999
Tracy J.B. Yager
2014, Scientific Investigations Report 2013-5074
The Metro Wastewater Reclamation District (Metro District) in Denver, Colo., applied biosolids resulting from municipal sewage treatment to farmland in eastern Colorado beginning in December 1993. In mid-1993, the U.S. Geological Survey in cooperation with the Metro District began monitoring water quality at the biosolids-application area about 10 miles east...
Coastal geology and recent origins for Sand Point, Lake Superior
Timothy G. Fisher, David E. Krantz, Mario R. Castaneda, Walter L. Loope, Harry M. Jol, Ronald J. Goble, Melinda C. Higley, Samantha DeWald, Paul Hansen
2014, GSA Special Papers (508) 85-110
Sand Point is a small cuspate foreland located along the southeastern shore of Lake Superior within Pictured Rocks National Lakeshore near Munising, Michigan. Park managers’ concerns for the integrity of historic buildings at the northern periphery of the point during the rising lake levels in the mid-1980s greatly elevated the...
From field data to volumes: Constraining uncertainties in pyroclastic eruption parameters
Malin Klawonn, Bruce F. Houghton, Don Swanson, Sarah A. Fagents, Paul Wessel, Cecily J. Wolfe
2014, Bulletin of Volcanology (76)
In this study, we aim to understand the variability in eruption volume estimates derived from field studies of pyroclastic deposits. We distributed paper maps of the 1959 Kīlauea Iki tephra to 101 volcanologists worldwide, who produced hand-drawn isopachs. Across the returned maps, uncertainty in isopach areas is 7 % across the...
Spatially explicit habitat models for 28 fishes from the Upper Mississippi River System (AHAG 2.0)
Brian S. Ickes, J.S. Sauer, N. Richards, M. Bowler, B. Schlifer
2014, Long Term Resource Monitoring Program Technical Report 2014-T002
Environmental management actions in the Upper Mississippi River System (UMRS) typically require pre-project assessments of predicted benefits under a range of project scenarios. The U.S. Army Corps of Engineers (USACE) now requires certified and peer-reviewed models to conduct these assessments. Previously, habitat benefits were estimated for fish communities...
Evaluation of the behavior and movement of adult summer steelhead in the lower Cowlitz River, Washington, following collection and release, 2013-2014
Tobias J. Kock, Theresa L. Liedtke, Brian K. Ekstrom, Chris Gleizes, Wolf Dammers
2014, Open-File Report 2014-1122
Summer steelhead (Oncorhynchus mykiss) produced by a hatchery on the lower Cowlitz River, Washington, support a popular sport fishery during June–September each year. Many of these fish return to the Cowlitz Salmon Hatchery and are held until they are spawned in December. In the past, fishery managers have released some...
A comprehensive population dataset for Afghanistan constructed using GIS-based dasymetric mapping methods
Allyson L. Thompson, Bernard E. Hubbard
2014, Scientific Investigations Report 2013-5238
This report summarizes the application of dasymetric methods for mapping the distribution of population throughout Afghanistan. Because Afghanistan's population has constantly changed through decades of war and conflict, existing vector and raster GIS datasets (such as point settlement densities and intensities of lights at night) do not adequately reflect the...
Water quality and algal community dynamics of three deepwater lakes in Minnesota utilizing CE-QUAL-W2 models
Erik A. Smith, Richard L. Kiesling, Joel M. Galloway, Jeffrey R. Ziegeweid
2014, Scientific Investigations Report 2014-5066
Water quality, habitat, and fish in Minnesota lakes will potentially be facing substantial levels of stress in the coming decades primarily because of two stressors: (1) land-use change (urban and agricultural) and (2) climate change. Several regional and statewide lake modeling studies have identified the potential linkages between land-use and...
Concentrations of polycyclic aromatic hydrocarbons (PAHs) and azaarenes in runoff from coal-tar- and asphalt-sealcoated pavement
Barbara Mahler, Peter C. Van Metre, William T. Foreman
2014, Environmental Pollution (188) 81-87
Coal-tar-based sealcoat, used extensively on parking lots and driveways in North America, is a potent source of PAHs. We investigated how concentrations and assemblages of PAHs and azaarenes in runoff from pavement newly sealed with coal-tar-based (CT) or asphalt-based (AS) sealcoat changed over time. Samples of simulated runoff were collected...
Particle-tracking investigation of the retention of sucker larvae emerging from spawning grounds in Upper Klamath Lake, Oregon
Tamara M. Wood, Susan A. Wherry, David C. Simon, Douglas F. Markle
2014, Open-File Report 2014-1061
This study had two objectives: (1) to use the results of an individual-based particle-tracking model of larval sucker dispersal through the Williamson River delta and Upper Klamath Lake, Oregon, to interpret field data collected throughout Upper Klamath and Agency Lakes, and (2) to use the model to investigate the retention...
Spatial variability in nutrient transport by HUC8, state, and subbasin based on Mississippi/Atchafalaya River Basin SPARROW models
Dale M. Robertson, David A. Saad, Gregory E. Schwarz
2014, Journal of the American Water Resources Association (50) 988-1009
Nitrogen (N) and phosphorus (P) loading from the Mississippi/Atchafalaya River Basin (MARB) has been linked to hypoxia in the Gulf of Mexico. With geospatial datasets for 2002, including inputs from wastewater treatment plants (WWTPs), and monitored loads throughout the MARB, SPAtially Referenced Regression On Watershed attributes (SPARROW) watershed models were...
Effects of lakes and reservoirs on annual river nitrogen, phosphorus, and sediment export in agricultural and forested landscapes
Stephen M. Powers, Dale M. Robertson, Emily H. Stanley
2014, Hydrological Processes (28) 5919-5937
Recently, effects of lakes and reservoirs on river nutrient export have been incorporated into landscape biogeochemical models. Because annual export varies with precipitation, there is a need to examine the biogeochemical role of lakes and reservoirs over time frames that incorporate interannual variability in precipitation. We examined long-term (~20 years) time...
Testing for multiple invasion routes and source populations for the invasive brown treesnake (Boiga irregularis) on Guam: implications for pest management
Jonathan Q. Richmond, Dustin A. Wood, James W. Stanford, Robert N. Fisher
2014, Biological Invasions
The brown treesnake (Boiga irregularis) population on the Pacific island of Guam has reached iconic status as one of the most destructive invasive species of modern times, yet no published works have used genetic data to identify a source population. We used DNA sequence data from multiple genetic markers and...
Gully annealing by aeolian sediment: field and remote-sensing investigation of aeolian-hillslope-fluvial interactions, Colorado River corridor, Arizona, USA
Joel B. Sankey, Amy E. Draut
2014, Geomorphology (220) 68-80
Processes contributing to development of ephemeral gully channels are of great importance to landscapes worldwide, and particularly in dryland regions where soil loss and land degradation from gully erosion pose long-term land-management problems. Whereas gully formation has been relatively well studied, much less is known of the processes that anneal...
The 3D Elevation Program: summary for Oklahoma
William J. Carswell Jr.
2014, Fact Sheet 2014-3053
Elevation data are essential to a broad range of applications, including forest resources management, wildlife and habitat management, national security, recreation, and many others. For the State of Oklahoma, elevation data are critical for flood risk management, infrastructure and construction management, agriculture and precision farming, natural resources conservation, wildlife and...
Estimation of flood discharges at selected annual exceedance probabilities for unregulated, rural streams in Vermont, with a section on Vermont regional skew regression
Scott A. Olson, Andrea G. with a section by Veilleux
2014, Scientific Investigations Report 2014-5078
This report provides estimates of flood discharges at selected annual exceedance probabilities (AEPs) for streamgages in and adjacent to Vermont and equations for estimating flood discharges at AEPs of 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent (recurrence intervals of 2-, 5-, 10-, 25-, 50-, 100-, 200-, and 500-years,...
Effects of recruitment, growth, and exploitation on walleye population size structure in northern Wisconsin lakes
Michael J. Hansen, Nancy A. Nate
2014, Journal of Fish and Wildlife Management (5) 99-108
We evaluated the dynamics of walleye Sander vitreus population size structure, as indexed by the proportional size distribution (PSD) of quality-length fish, in Escanaba Lake during 1967–2003 and in 204 other lakes in northern Wisconsin during 1990–2011. We estimated PSD from angler-caught walleyes in Escanaba Lake and from spring electrofishing...
Modeling low-temperature geochemical processes:
D. Kirk Nordstrom, Kate M. Campbell
2014, Book chapter, Reference module in earth systems and environmental sciences: Treatise on geochemistry
This chapter provides an overview of geochemical modeling that applies to water–rock interactions under ambient conditions of temperature and pressure. Topics include modeling definitions, historical background, issues of activity coefficients, popular codes and databases, examples of modeling common types of water–rock interactions, and issues of model reliability. Examples include speciation,...
A mapping and monitoring assessment of the Philippines' mangrove forests from 1990 to 2010
Jordan Long, Darrell Napton, Chandra Giri, Jordan Graesser
2014, Journal of Coastal Research (30) 260-271
Information on the present condition and spatiotemporal dynamics of mangrove forests is needed for land-change studies and integrated natural resources planning and management. Although several national mangrove estimates for the Philippines exist, information is unavailable at sufficient spatial and thematic detail for change analysis. Historical and contemporary mangrove distribution maps...
Streamflow, water quality, and aquatic macroinvertebrates of selected streams in Fairfax County, Virginia, 2007-12
John D. Jastram
2014, Scientific Investigations Report 2014-5073
Efforts to mitigate the effects of urbanization on streams rely on best management practices (BMPs) that are implemented with the intent of reducing and retaining stormwater runoff. A cooperative monitoring effort between the U.S. Geological Survey and Fairfax County, Virginia, was initiated in 2007 to assess the condition of county...
Population dynamics of bowfin in a south Georgia reservoir: latitudinal comparisons of population structure, growth, and mortality
Nicholas J. Porter, Timothy F. Bonvechio, Joshua L. McCormick, Michael Quist
2014, Journal of the Southeastern Association of Fish and Wildlife Agencies 103-109
The objectives of this study were to evaluate the population dynamics of bowfin (Amia calva) in Lake Lindsay Grace, Georgia, and to compare those dynamics to other bowfin populations. Relative abundance of bowfin sampled in 2010 in Lake Lindsay Grace was low and variable (mean±SD; 2.7±4.7 fish per hour of...
Archive of digital chirp subbottom profile data collected during USGS Cruise 13GFP01, Brownlee Dam and Hells Canyon Reservoir, Idaho and Oregon, 2013
Arnell S. Forde, Shawn V. Dadisman, James G. Flocks, Ryan L. Fosness, Chris Welcker, Kyle W. Kelso
2014, Data Series 829
From March 16 - 31, 2013, the U.S. Geological Survey in cooperation with the Idaho Power Company conducted a geophysical survey to investigate sediment deposits and long-term sediment transport within the Snake River from Brownlee Dam to Hells Canyon Reservoir, along the Idaho and Oregon border; this effort will help...
Performance of a surface bypass structure to enhance juvenile steelhead passage and survival at Lower Granite Dam, Washington
Noah S. Adams, John M. Plumb, Russell W. Perry, Dennis W. Rondorf
2014, North American Journal of Fisheries Management (34) 576-594
An integral part of efforts to recover stocks of Pacific salmon Oncorhynchus spp. and steelhead O. mykiss in Pacific Northwest rivers is to increase passage efficacy and survival of juveniles past hydroelectric dams. As part of this effort, we evaluated the efficacy of a prototype surface bypass structure, the removable spillway weir (RSW), installed...
The response of stream periphyton to Pacific salmon: using a model to understand the role of environmental context
J. Ryan Bellmore, Alexander K. Fremier, Francine Mejia, Michael Newsom
2014, Freshwater Biology (59) 1437-1451
1. In stream ecosystems, Pacific salmon deliver subsidies of marine-derived nutrients and disturb the stream bed during spawning. The net effect of this nutrient subsidy and physical disturbance on biological communities can be hard to predict and is likely to be mediated by environmental conditions. For periphyton, empirical studies have...
Mapping mountain pine beetle mortality through growth trend analysis of time-series landsat data
Lu Liang, Yanlei Chen, Todd Hawbaker, Zhi-Liang Zhu, Peng Gong
2014, Remote Sensing (6) 5696-5716
Disturbances are key processes in the carbon cycle of forests and other ecosystems. In recent decades, mountain pine beetle (MPB; Dendroctonus ponderosae) outbreaks have become more frequent and extensive in western North America. Remote sensing has the ability to fill the data gaps of long-term infestation monitoring, but the elimination...
Methylmercury production in sediment from agricultural and non-agricultural wetlands in the Yolo Bypass, California, USA
Mark Marvin-DiPasquale, Lisamarie Windham-Myers, Jennifer L. Agee, Evangelos Kakouros, Le H. Kieu, Jacob A. Fleck, Charles N. Alpers, Craig A. Stricker
2014, Science of the Total Environment (484) 288-299
As part of a larger study of mercury (Hg) biogeochemistry and bioaccumulation in agricultural (rice growing) and non-agricultural wetlands in California's Central Valley, USA, seasonal and spatial controls on methylmercury (MeHg) production were examined in surface sediment. Three types of shallowly-flooded agricultural wetlands (white rice, wild rice, and fallow fields)...
