519 Works

Chirp seismic-reflection data: San Pablo Bay, California

Janet T. Watt, Patrick J. Hart & Jared W. Kluesner
This data release includes chirp seismic-reflection data collected in 2014 aboard the USGS R/V Snavely in San Pablo Bay, part of northern San Francisco Bay. These data were acquired to image the shallow geologic structure, particularly that related to the Hayward and Rodgers Creek Faults. Approximately 200 km of marine seismic-reflection data were collected along primarily northeast and northwest-trending profiles spaced 1-km apart using an Edgetech 512 chirp sub-bottom profiler that was towed alongside the...

High-resolution digital elevation dataset for Newberry Volcano and vicinity, Oregon, based on lidar survey of August-September, 2010 and bathymetric survey of June, 2001

Joseph A. Bard & David W. Ramsey
Newberry Volcano, one of the largest Quaternary volcanoes in the conterminous United States, is a broad shield-shaped volcano measuring 60 km north-south by 30 km east-west with a maximum elevation of more than 2 km above sea level. It is the product of deposits from thousands of eruptions, including at least 25 in (approximately) the last 12,000 years (the Holocene Epoch). Newberry Volcano has erupted as recently as 1,300 years ago, but isotopic ages indicate...

Walrus used and available resource units for northeast Chukchi Sea, 2008-2012

William S Beatty, Chadwick V Jay, Anthony S Fischbach, J.M. Grebmeier, Rebecca L Taylor, A.L. Blanchard & S.C. Jewett
Sea ice loss represents a stressor to the Pacific walrus, which feeds on benthic macroinvertebrates in the Bering and Chukchi seas. However, no studies have examined the effects of sea ice on foraging walrus space use patterns. Thus, we examined walrus foraging resource selection as a function of proximity to resting substrates and prey biomass with a matched use-availability design. We quantified biomass of 17 benthic taxa, which included amphipods, bivalves, polychaete, sand dollars, tunicates,...

Hydrogeologic framework bottom elevations and thicknesses of Permian, Upper Pennsylvanian, Lower Pennsylvanian, and Mississippian units in the Appalachian Plateaus Physiographic Province

David E. Ladd
As part of the U.S. Geological Survey Water Availability and Use Science Program study of Appalachian Plateaus aquifers, bottom elevations and thicknesses were determined for Permian, Upper Pennsylvanian, Lower Pennsylvanian, and Mississippian hydrogeologic framework units in the Appalachian Plateaus, covering parts of Pennsylvania, Maryland, Ohio, West Virginia, Kentucky, Virginia, Tennessee, Georgia, and Alabama. Thickness values for these units were compiled at point locations from available sources (Martens, 1945; McKee and Crosby, 1975; Craig and Connor,...

Effects of carbon dioxide on juveniles of the freshwater mussel Lampsilis siliquoidea (Unionidae).

Diane L Waller
Carbon dioxide has shown promise as a tool to control movements of invasive Asian carps. We evaluated lethal and sublethal responses of juvenile fat mucket (Lampsilis siliquoidea) mussels to carbon dioxide concentrations (43�269 mg/L, mean concentration) that are effective for deterring carp movement. The 28-d LC50 value (lethal concentration to 50% of the mussels) was 87.0 mg/L (95% confidence interval, CI 78.4�95.9) and at 16-d post-exposure was 76.0 mg/L (95% CI 62.9�90.3). A proportional hazards...

FishVis, predicted occurrence and vulnerability for 13 fish species for current (1961 - 1990) and future (2046 - 2100) climate conditions in Great Lakes streams.

Jana S. Stewart, Shawn A. Covert, Damon Krueger, Michael T. Slattery, Daniel J Wieferich, Stephen M Westenbroek, Dana M. Infante, & John D. Lyons
Climate change is expected to alter the distributions and community composition of stream fishes in the Great Lakes region in the 21st century, in part as a result of altered hydrological systems (stream temperature, streamflow, and habitat). Resource managers need information and tools to understand where fish species and stream habitats are expected to change under future conditions. Fish sample collections and environmental variables from multiple sources across the United States Great Lakes Basin were...

Development of Targeted Delivery Techniques for Zequanox®

Todd J Severson
The effects of temperature and concentration on the viscosity, settling, and distribution of Zequanox®, a dead-cell spray-dried powder formulation of Pseudomonas fluorescens (strain CL145A) used for controlling invasive dreissenid mussels (zebra mussel, Dreissena polymorpha, and quagga mussel, Dreissena bugensis), was investigated. Laboratory tests examined viscosity, delivery and sink rates, mixing, settling, and diffusion characteristics at varying temperatures and concentrations to determine optimal target viscosity for subsurface injection of Zequanox. Furthermore, this target viscosity was used...

USGS Minerals Yearbook 2015, v. I, Bromine, Advance Data Release

Emily Schnebele
These advance data tables are those to be published with the 2015 USGS Minerals Yearbook volume I Bromine chapter. They contain salient statistics for bromine sold or used from 2011 to 2015, a list of U.S. bromine producing plants in 2015, exports and imports data for bromine and bromine compounds in 2014 and 2015, world production by country from 2011 to 2015, and capacities of major plants outside the United States.

Pressure and flow rate measurements to support hydraulic tomography of the Floridan aquifer system at the North District Wastewater Treatment Plant, Miami-Dade County, Florida

Jeffrey N. King
U.S. Geological Survey, in cooperation with Miami-Dade County, performed a sequential, aquifer stress test from August 15 to October 12, 2011, on the Floridan aquifer system at the North District Wastewater Treatment Plant, in Miami-Dade County, Florida. Miami-Dade County stressed the Floridan aquifer system with four municipal injection wells at the North District Wastewater Treatment Plant. Injection wells IW1, IW3, and IW4 stressed the aquifer system with injection of as much as 1.8 cubic meters...

Dam Failure Analysis for the Lago de Guineo dam, Orocovis, Puerto Rico

Julieta Gomez-Frangoso & Heriberto Torres-Sierra
The U.S. Geological Survey, in cooperation with the Puerto Rico Electric Power Authority, completed hydrologic and hydraulic analyses to assess the potential hazard to human life and property associated with the hypothetical failure of the Lago El Guineo Dam. The Lago El Guineo Dam is within the headwaters of the Ro Grande de Manat and impounds a drainage area of about 4.25 square kilometers. The hydrologic assessment was designed to determine the outflow hydrographs and...

EAARL Coastal Topography?Assateague Island National Seashore, Maryland and Virginia, 2002

Christine Kranenburg, Xan Fredericks & David B. Nagle
These datasets, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in collaboration with the National Park Service, provide lidar-derived first-surface and bare-earth topography for Assateague Island National Seashore, Maryland and Virginia. Elevation measurements were acquired by the Experimental Advanced Airborne Research Lidar (EAARL) during September 2002.

MODFLOW-2005 and MODPATH6 models used to delineate areas contributing groundwater to selected surface receiving waters for long-term average hydrologic stress conditions from 1968 to 1983, Long Island, New York

Paul E. Misut
A regional groundwater-flow model and particle-tracking program were used to delineate areas contributing groundwater to coastal and freshwater bodies and to estimate travel times from the water table to saline water bodies under average conditions from 1968 to 1983 on Long Island, New York. The coastal waters of Long Island are important economic and recreational resources for the region. The coastal water bodies receive freshwater from inflow of both surface water and groundwater, in addition...

MODPATH: A particle-tracking model for MODFLOW

David W. Pollock
MODPATH is a particle-tracking post-processing program designed to work with MODFLOW, the USGS finite-difference groundwater flow model. MODPATH version 7 is the fourth major release since its original publication.

Spatial distribution of depth-averaged velocity measured in the Wabash River near West Lafayette, IN (June 26-27, 2012 and June 17-18, 2013)

P. Ryan Jackson
These data were collected using a 2 mHz TRDI StreamPro acoustic Doppler current profiler (ADCP) in 2012 and a 1200 kHz Rio Grande ADCP in 2013, both deployed from a moving boat. The data were georeferenced with a Hemisphere Crescent A100 differential Global Positioning System (GPS) receiver with submeter accuracy. The data have been depth-averaged over the entire measured portion of the water column and temporally averaged over 30-second intervals to reduce noise. These data...

National Assessment of Hurricane-Induced Coastal Erosion Hazards: South Carolina to New Hampshire update

Kara S. Doran, Justin J. Birchler, Hilary F. Stockdon, David M. Thompson, Karen L M Morgan & Owen T. Brenner
These data sets contain information on the probabilities of hurricane-induced erosion (collision, inundation and overwash) for each 1-km section of the U.S. coast for category 1-5 hurricanes. The analysis is based on a storm-impact scaling model that uses observations of beach morphology combined with sophisticated hydrodynamic models to predict how the coast will respond to the direct landfall of category 1-5 hurricanes. Hurricane-induced water levels, due to both surge and waves, are compared to beach...

Data release in support of \"One the Deterministic and Stochastic Use of Hydrologic Models\"

Richard M. Vogel William H. Farmer
This data set archives all inputs, outputs and scripts needed to reproduce the findings of W.H. Farmer and R.M. Vogel in the 2016 Water Resources Research article entitled "On the Deterministic and Stochastic Use of Hydrologic Model". Input data includes observed streamflow values, in cubic feet per second, for 1225 streamgages over the period from 01 October 1980 through 30 September 2011. Estiamted streamflows, for the same streamgages and periods, is provided from a general...

Hydroacoustic measurements of velocities in and near the rake-to-box junction gap of a moving, fully-loaded commercial barge tow

Patrick R. Jackson, Frank Engel, Elizabeth A. Murphy & Jessica A. Zinger
In August 2015, water velocities around a fully-loaded commercial barge tow were measured as the barge tow traveled upstream through the Chicago Sanitary and Ship Canal from a starting position in Lockport Pool, and passed through the Electric Dispersal Barrier System at river mile (RM) 296 near Romeoville, IL. Velocity measurements were made in and alongside the gap formed by the junction between the boxed stern of a rake hopper barge and the raked bow...

Monthly Water Balance Model Hydrology Futures

Andrew R. Bock, Lauren E. Hay, Steven L. Markstrom & R. Dwight Atkinson
The monthly water balance model (MWBM) was driven with precipitation and temperature for current and future conditions using the GMO/GSD dataset (Maurer, E.P., A.W. Wood, J.C. Adam, D.P. Lettenmaier, and B. Nijssen, 2002. A Long-Term Hydrologically-Based Data Set of Land Surface Fluxes and States for the Conterminous United States, Journal of Climatology 15) and selected general circulation models (GCMs) from the monthly time-step bias-corrected spatially disaggregated (BCSD) projections, based on the World Climate Research Programme's...

USGS HYDRoacoustic dataset in support of the Surface Water Oceanographic Topography satellite mission (HYDRoSWOT)

Michael G. Canova, John W. Fulton & David M. Bjerklie
HYDRoSWOT HYDRoacoustic dataset in support of Surface Water Oceanographic Topography is a data set that aggregates channel and flow data collected from the USGS streamgaging network and includes 200,000+ records of USGS acoustic Doppler current profiler (ADCP) discharge measurements. The data set includes a variety of fields including: mean depth, mean velocity, discharge, stage, water-surface width, maximum depth, maximum velocity, and streamgage metadata for more than 5,000 stations in the United States. The hydraulic and...

Missouri Breaks Project, Montana - Digitized aeromagnetic data

Eric D. Anderson, Heather L. Parks, Michael C. Jenkins, Duc M Nguyen, B. Carter Hearn & Michael L. Zientek
From February 12 to March 8, 1981, EG and G Geometrics conducted an aeromagnetic survey in Montana for Anaconda Copper Company. A Piper Navajo aircraft was used to conducted the survey. The survey was flown along north-south flightlines spaced 660 feet at a nominal height of 450 feet above the terrain. Five uniformly spaced east-west tie-lines were also flown. During processing, the International Geomagnetic Reference Field (IGRF) of 1975 was updated to 1981 and removed...

Helicopter magnetic and gravity gradiometry survey over the Pea Ridge iron mine and surrounding area, southeast Missouri, 2014

Anne E McCafferty
High resolution magnetic and gravity gradient data were collected using the HeliFalcon airborne gravity gradiometry system together with a stinger-mounted magnetometer. The survey took place out of the Sullivan, Missouri airport during March of 2014. The survey covers a 35 x 37 square-kilometer area centered on the Pea Ridge iron oxide-apatite rare-earth element deposit, which is located about halfway between the towns of Sullivan and Potosi, Missouri. Data were collected along north-south flight lines spaced...

Table containing raw and normalized scores used to calculate vulnerability of 60 American Midwestern national parks to projected climate and land use changes for 2080-2099.

Matthew A. Struckhoff Esther D. Stroh
This supplementary table contains raw and relative (normalized) data for metrics measuring exposure (yellow columns), sensitivity (green columns), adaptive constraint (blue columns), and vulnerability for units in the US National Park Service Midwest administrative region. Stippled columns contain relative (normalized) data used to calculate the corresponding component. Vulnerability (two climate scenarios) was calculated as the mean of the three components.

Water and sediment geochemistry data from the vicinity of Yellow Pine, Idaho

JoAnn M. Holloway
Samples were collected at or near baseflow conditions. Water pH and specific conductance were measured in the field, with specific conductance also measured in the laboratory and calculated based on the ionic strength of samples based on laboratory analyses. Water samples were collected for laboratory analyses using a peristaltic pump with silicon tubing. Samples were filtered through a reusable plexiglass filter holder with nylon screws using 0.45m polyethersulfone membranes that were rinsed with approximately 20mL...

Walrus Bayesian State-Space Bering Sea Chukchi Sea 2008-2012

W. S. Beatty
State-space models offer researchers an objective approach to modeling complex animal location datasets, and state-space model behavior classifications are often assumed to have a link to animal behavior. We evaluated the behavioral classification accuracy of a Bayesian state-space model in Pacific walruses using Argos satellite tags outfitted with sensors to detect animal behavior in real time. We fit a two-state discrete-time continuous-space Bayesian state-space model to data from 306 Pacific walruses tagged in the Chukchi...

MODFLOW2005 model used to simulate the effects of groundwater withdrawals from aquifers in Ocean County and vicinity, New Jersey

Stephen J Cauller, Lois M Voronin & Mary M Chepiga
A three-dimensional groundwater flow model was developed to simulate the effects of withdrawals on the groundwater-flow systems of five aquifers in and around Ocean County, New Jersey-the unconfined Kirkwood-Cohansey aquifer system and Vincentown aquifer, and three confined aquifers--the Rio Grande water-bearing zone, the Atlantic City 800-foot sand, and the Piney Point aquifer. A transient model was used to simulate conditions that represent no groundwater withdrawals, 2000-2003 groundwater withdrawals, and maximum-allocation groundwater withdrawals. Particle-tracking analysis, using...

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