A water-budget model and estimates of groundwater recharge for Guam
Adam G. Johnson
2012, Scientific Investigations Report 2012-5028
On Guam, demand for groundwater tripled from the early 1970s to 2010. The demand for groundwater is anticipated to further increase in the near future because of population growth and a proposed military relocation to Guam. Uncertainty regarding the availability of groundwater resources to support the increased demand has prompted...
An analytical method for predicting postwildfire peak discharges
John A. Moody
2012, Scientific Investigations Report 2011-5236
An analytical method presented here that predicts postwildfire peak discharge was developed from analysis of paired rainfall and runoff measurements collected from selected burned basins. Data were collected from 19 mountainous basins burned by eight wildfires in different hydroclimatic regimes in the western United States (California, Colorado, Nevada, New Mexico,...
Volcanogenic massive sulfide occurrence model
W.C. Pat Shanks III, Randolph A. Koski, Dan L. Mosier, Klaus J. Schulz, Lisa A. Morgan, John F. Slack, W. Ian Ridley, Cynthia Dusel-Bacon, Robert R. Seal II, Nadine M. Piatak
W.C. Pat Shanks III, Roland Thurston, editor(s)
2012, Scientific Investigations Report 2010-5070-C
Volcanogenic massive sulfide deposits, also known as volcanic-hosted massive sulfide, volcanic-associated massive sulfide, or seafloor massive sulfide deposits, are important sources of copper, zinc, lead, gold, and silver (Cu, Zn, Pb, Au, and Ag). These deposits form at or near the seafloor where circulating hydrothermal fluids driven by magmatic heat...
Enhanced surveillance strategies for detecting and monitoring chronic wasting disease in free-ranging cervids
Daniel P. Walsh, editor(s)
2012, Open-File Report 2012-1036
The purpose of this document is to provide wildlife management agencies with the foundation upon which they can build scientifically rigorous and cost-effective surveillance and monitoring programs for chronic wasting disease (CWD) or refine their existing programs. The first chapter provides an overview of potential demographic and spatial risk factors...
Comparative risk assessment of the first-generation anticoagulant rodenticide diphacinone to raptors
Barnett A. Rattner, Rebecca S. Lazarus, Karen M. Eisenreich, Katherine E. Horak, Steven F. Volker, Christopher M. Campton, John D. Eisemann, Carol U. Meteyer, John J. Johnson
2012, Conference Paper, Proceedings of the 25th Vertebrate Pest Conference
New regulatory restrictions have been placed on the use of some second-generation anticoagulant rodenticides in the United States, and in some situations this action may be offset by expanded use of first-generation compounds. We have recently conducted several studies with captive adult American kestrels and eastern screech-owls examining the toxicity...
Sea-floor geology and sedimentary processes in the vicinity of Cross Rip Channel, Nantucket Sound, offshore southeastern Massachusetts
L.J. Poppe, K.Y. McMullen, S.D. Ackerman, J.D. Schaer, D.B. Wright
2012, Open-File Report 2011-1222
Gridded multibeam bathymetry covers approximately 10.4 square kilometers of sea floor in the vicinity of Cross Rip Channel in Nantucket Sound, offshore southeastern Massachusetts. Although originally collected for charting purposes during National Oceanic and Atmospheric Administration hydrographic survey H12007, these acoustic data, and the sea-floor sediment sampling and bottom photography...
Sea-floor geology of Long Island Sound north of Duck Pond Point, New York
K.Y. McMullen, L.J. Poppe, W. W. Danforth, D.S. Blackwood, J.D. Schaer, K.A. Glomb, E. F. Doran
2012, Open-File Report 2011-1149
The U.S. Geological Survey, the National Oceanic and Atmospheric Administration (NOAA), and the Connecticut Department of Environmental Protection are mapping the sea floor in coastal areas of the northeastern United States. As part of the project, more than 100 square kilometers of multibeam-echosounder data, 23 sediment samples, bottom video, and...
The Columbia River Research Laboratory
Steve Waste, Rachel Reagan
2012, Fact Sheet 2012-3022
The mission of the Columbia River Research Laboratory is to serve the public by providing scientific information to support the stewardship of our Nation's fish and aquatic resources, with emphasis on the Columbia River basin. As a part of the U.S. Geological Survey (USGS) Western Fisheries Research Center, we conduct...
Effectiveness of seining after electrofishing to characterize stream fish communities
Michael R. Meador
2012, North American Journal of Fisheries Management (32) 177-185
The richness and composition of species collected uniquely to electrofishing and subsequent seining efforts were examined at 271 stream sites across the USA by using wadeable electrofishing methods (backpack or barge electrofishing) or boat electrofishing followed by seining. Seining after wadeable electrofishing resulted in the collection of new species at...
RIP-ET: A riparian evapotranspiration package for MODFLOW-2005
Thomas Maddock III, Kathryn J. Baird, R. T. Hanson, Wolfgang Schmid, Hoori Ajami
2012, Techniques and Methods 6-A39
A new evapotranspiration package for the U.S. Geological Survey's groundwater-flow model, MODFLOW, is documented. The Riparian Evapotranspiration Package (RIP-ET) provides flexibility in simulating riparian and wetland transpiration not provided by the Evapotranspiration (EVT) or Segmented Function Evapotranspiration (ETS1) Packages for MODFLOW 2005. This report describes how the RIP-ET package was...
Devils Hole, Nevada--A Primer
Jurate M. Landwehr, Isaac J. Winograd
2012, Fact Sheet 2012-3021
This fact sheet summarizes the multifaceted research of the U.S. Geological Survey—published in diverse outlets—that focuses on the subaqueous cavern Devils Hole in Nevada. Questions addressed in the fact sheet are: What is Devils Hole? Why is Devils Hole of interest to paleoclimatologists? How was the isotopic record from the...
Plant distributions in the southwestern United States; a scenario assessment of the modern-day and future distribution ranges of 166 Species
Kathryn A. Thomas, Patricia P. Guertin, Leila Gass
2012, Open-File Report 2012-1020
The authors developed spatial models of the predicted modern-day suitable habitat (SH) of 166 dominant and indicator plant species of the southwestern United States (herein referred to as the Southwest) and then conducted a coarse assessment of potential future changes in the distribution of their suitable habitat under three climate-change...
Travel times, streamflow velocities, and dispersion rates in the Missouri River upstream from Canyon Ferry Lake, Montana
Aroscott Whiteman
2012, Scientific Investigations Report 2012-5044
In 2010, the U.S. Geological Survey, in cooperation with the Montana Department of Environmental Quality, initiated a dye-tracer study to determine travel times, streamflow velocities, and longitudinal dispersion rates for the Missouri River upstream from Canyon Ferry Lake. For this study, rhodamine WT (RWT) dye was injected at two locations,...
Fish species of greatest conservation need in wadeable Iowa streams: current status and effectiveness of Aquatic Gap Program distribution models
Anthony R. Sindt, Clay Pierce, Michael C. Quist
2012, North American Journal of Fisheries Management (32) 135-146
Effective conservation of fish species of greatest conservation need (SGCN) requires an understanding of species–habitat relationships and distributional trends. Thus, modeling the distribution of fish species across large spatial scales may be a valuable tool for conservation planning. Our goals were to evaluate the status of 10 fish SGCN in...
Cross-borehole flow analysis to characterize fracture connections in the Melechov Granite, Bohemian-Moravian Highland, Czech Republic
Frederick L. Paillet, John H. Williams, Joseph Urik, Joseph Lukes, Miroslav Kobr, Stanislav Mares
2012, Hydrogeology Journal (20) 143-154
Application of the cross-borehole flow method, in which short pumping cycles in one borehole are used to induce time-transient flow in another borehole, demonstrated that a simple hydraulic model can characterize the fracture connections in the bedrock mass between the two boreholes. The analysis determines the properties of fracture connections...
On thinning of chains in MCMC
William A. Link, Mitchell J. Eaton
2012, Methods in Ecology and Evolution (3) 112-115
1. Markov chain Monte Carlo (MCMC) is a simulation technique that has revolutionised the analysis of ecological data, allowing the fitting of complex models in a Bayesian framework. Since 2001, there have been nearly 200 papers using MCMC in publications of the Ecological Society of America and the British Ecological...
Coastal circulation and potential coral-larval dispersal in Maunalua Bay, O'ahu, Hawaii—Measurements of waves, currents, temperature, and salinity, June-September 2010
M. Katherine Presto, Curt D. Storlazzi, Joshua B. Logan, Thomas E. Reiss, Kurt J. Rosenberger
2012, Open-File Report 2012-1040
This report presents a summary of fieldwork conducted in Maunalua Bay, O'ahu, Hawaii to address coral-larval dispersal and recruitment from June through September, 2010. The objectives of this study were to understand the temporal and spatial variations in currents, waves, tides, temperature, and salinity in Maunalua Bay during the summer...
Water-quality characteristics of Michigan's inland lakes, 2001-10
L. M. Fuller, C.K. Taricska
2012, Scientific Investigations Report 2011-5233
The U.S. Geological Survey and the Michigan Department of Environmental Quality (MDEQ) jointly monitored for selected water-quality constituents and properties of inland lakes during 2001–10 as part of Michigan's Lake Water-Quality Assessment program. During 2001–10, 866 lake basins from 729 inland lakes greater than 25 acres were monitored for baseline...
Deep-Sea Turbidites as Guides to Holocene Earthquake History at the Cascadia Subduction Zone—Alternative Views for a Seismic-Hazard Workshop
Brian F. Atwater, Gary B. Griggs
2012, Open-File Report 2012-1043
This report reviews the geological basis for some recent estimates of earthquake hazards in the Cascadia region between southern British Columbia and northern California. The largest earthquakes to which the region is prone are in the range of magnitude 8-9. The source of these great earthquakes is the fault down...
Quality of water in the White River and Lake Tapps, Pierce County, Washington, May-December 2010
S.S. Embrey, R. J. Wagner, R.L. Huffman, A. M. Vanderpool-Kimura, J.R. Foreman
2012, Scientific Investigations Report 2012-5022
The White River and Lake Tapps are part of a hydropower system completed in 1911–12. The system begins with a diversion dam on the White River that routes a portion of White River water into the southeastern end of Lake Tapps, which functioned as a storage reservoir for power generation....
Ensemble forecasting of potential habitat for three invasive fishes
Helen M. Poulos, Barry Chernoff, Pam L. Fuller, David Butman
2012, Aquatic Invasions (7) 59-72
Aquatic invasive species pose major ecological and economic threats to aquatic ecosystems worldwide via displacement, predation, or hybridization with native species and the alteration of aquatic habitats and hydrologic cycles. Modeling the habitat suitability of alien aquatic species through spatially explicit mapping is an increasingly important risk assessment tool. Habitat...
Patterns of larval sucker emigration from the Sprague and lower Williamson Rivers of the Upper Klamath Basin, Oregon, after the removal of Chiloquin Dam - 2009-10 Annual Report
Craig M. Ellsworth, Barbara A. Martin
2012, Open-File Report 2012-1037
Executive Summary In 2009 and 2010, drift samples were collected from six sites on the lower Sprague and Williamson Rivers to assess drift patterns of larval Lost River suckers (Deltistes luxatus) (LRS) and shortnose suckers (Chasmistes brevirostris) (SNS). The objective of this study was to characterize the drift timing, relative abundance,...
Evaluation of long-term water-level declines in basalt aquifers near Mosier, Oregon
Erick R. Burns, David S. Morgan, Karl K. Lee, Jonathan V. Haynes, Terrence D. Conlon
2012, Scientific Investigations Report 2012-5002
The Mosier area lies along the Columbia River in northwestern Wasco County between the cities of Hood River and The Dalles, Oregon. Major water uses in the area are irrigation, municipal supply for the city of Mosier, and domestic supply for rural residents. The primary source of water is groundwater...
Numerical models of salt marsh evolution: ecological, geomorphic, and climatic factors
Sergio Fagherazzi, Matthew L. Kirwan, Simon M. Mudd, Glenn R. Guntenspergen, Stijn Temmerman, Andrea D’Alpaos, Johan van de Koppel, John Rybczyk, Enrique Reyes, Chris Craft, Jonathan Clough
2012, Reviews of Geophysics (50)
Salt marshes are delicate landforms at the boundary between the sea and land. These ecosystems support a diverse biota that modifies the erosive characteristics of the substrate and mediates sediment transport processes. Here we present a broad overview of recent numerical models that quantify the formation and evolution of salt...
Quality of water and bottom material in Breckenridge Reservoir, Virginia, September 2008 through August 2009
Russell Lotspeich
2012, Open-File Report 2011-1305
Breckenridge Reservoir is located within the U.S. Marine Corps Base in Quantico, which is in the Potomac River basin and the Piedmont Physiographic Province of northern Virginia. Because it serves as the principal water supply for the U.S. Marine Corps Base in Quantico, an assessment of the water-quality of Breckenridge...
