8,051 Works

Pesticide recovery data for surface water and lab reagent samples analyzed by the USGS National Water Quality Laboratory schedule 2437, water years 2016-17.

Christine M. Wieben
This data release contains two tables-one table of field spike recovery data and one table of lab reagent spike recovery data-for pesticides and pesticide degradates analyzed by the USGS National Water Quality Laboratory (NWQL) schedule 2437, and associated metadata. The table of field spike recovery data includes results from paired environmental and spike samples collected by the National Water Quality Program, National Water-Quality Assessment (NAWQA) Project in surface water. The table of lab reagent spike...

SUTRA 3

Alden Provost & Clifford I Voss

LEAN-Corrected DEM for Suisun Marsh

Kevin J Buffington, Karen M Thorne, John Y Takekawa, Steve Chappell, Ted Swift, Cliff Feldheim, Anthony Squellati & Daniel K Mardock
Lidar-derived digital elevation models often contain a vertical bias due to vegetation. In areas with tidal influence the amount of bias can be ecologically significant, for example, by decreasing the expected inundation frequency. We generated a corrected digital elevation mode (DEM) for Suisun marsh using a modification of the Lidar Elevation Adjustment with NDVI (LEAN) technique (Buffington et al. 2016). GPS survey data (6912 points, collected across public and private land in 2018), Normalized Difference...

Geochemical analyses of surface- and groundwater and springs from Mount Emmons, near Crested Butte, Colorado, from 1997 to 2017

Michaela R Johnson, Richard B. Wanty, Ashley J. Bembenek, Philip L. Verplanck & Andrew H. Manning
The U.S. Geological Survey (USGS), Colorado Division of Reclamation, Mining and Safety (DRMS), and Coal Creek Watershed Coalition (CCWC) working independently, have intermittently collected samples of surface- and groundwater and springs around Mount Emmons, near Crested Butte, Colorado. This data release is a compilation of the comprehensive inorganic chemical analyses conducted as a result of that sampling. The earliest samples were collected in the summer of 1997, and subsequent sampling has continued through 2017. Water...

USGS Benchmark Glacier Mass Balance and Project Data

Emily H Baker, Christopher J Mcneil, Louis Sass, Erich H Peitzsch, Erin N Whorton, Caitlyn E Florentine, Adam M Clark, Zachary S Miller, Daniel B Fagre & Shad R O'Neel
Since the late 1950s, the USGS has maintained a long-term glacier mass-balance program at three North American glaciers. Measurements began on South Cascade Glacier, WA in 1958, expanding to Gulkana and Wolverine glaciers, AK in 1966, and later Sperry Glacier, MT in 2005. Additional measurements have been made on Lemon Creek Glacier, AK to compliment data collected by the Juneau Icefield Research Program (JIRP; Pelto et al., 2013). Direct field measurements of point glaciological data...

Crustal Architecture Beneath the Southern Midcontinent (USA) -- Data Grids and 3D Geophysical Models

Jeffrey D. Phillips & Anne E. McCafferty
Regional grid files and 3D voxel models were used to study crustal architecture beneath the Southern Midcontinent (USA) by McCafferty and others (2019). The study covered a rectangular, multi-state area of 924 by 924 kilometers centered on Missouri, and a corresponding volume extending from the topographic surface to a depth of 50 kilometers below sea level. The grid files consist of surface grids (magnetic field observation surface, topographic surface, Precambrian basement surface, and Moho interface)...

Great Dismal Swamp field measurements for aboveground and belowground biomass

Todd J Hawbaker & Jamie Duberstein
Plot-level field data were collected in the summer of 2014 to estimate aboveground and belowground biomass in the Great Dismal Swamp National Wildlife Refuge and Dismal Swamp State Park in North Carolina and Virginia. Data were collected at 85 plots. The location of the center of each plot was recorded with a Trimble ProXH global positioning system (GPS) and differentially corrected. Data files included 1: GDS_plots.csv, 2. GDS_FWD.csv, 3. GDS_LWD.csv, 4. GDS_Shrubs.csv, 5. GDS_Trees.csv, and...

California State Waters Map Series Data Catalog--Point Sur to Point Arguello

Samuel Y. Johnson, Stephen R. Hartwell, Janet T. Watt, Jeffrey W. Beeson & Peter Dartnell
As part of the USGS's California State Waters Mapping Project, a 50-m grid of sediment thickness for the seafloor within the 3-nautical mile limit between Point Sur and Point Arguello was generated from seismic-reflection data collected between 2008 and 2014, and supplemented with geologic structure (fault and fold) information following the methodology of Wong (2012). Water depths determined from bathymetry data were added to the sediment thickness data to provide information on the depth to...

Glacier-Wide Mass Balance and Compiled Data Inputs: USGS Benchmark Glaciers (V3.0, July 2019)

Christopher J Mcneil, Louis Sass, C.E. Florentine, Emily H Baker, Erich H Peitzsch, Erin N Whorton, Z.S. Miller, Daniel B Fagre, Adam M. Clark & Shad R O'Neel
Since the late 1950s, the USGS has maintained a long-term glacier mass-balance program at three North American glaciers. Measurements began on South Cascade Glacier, WA in 1958, expanding to Gulkana and Wolverine glaciers, AK in 1966, and later Sperry Glacier, MT in 2005. Additional measurements have been made on Lemon Creek Glacier, AK to compliment data collected by the Juneau Icefield Research Program (JIRP; Pelto et al., 2013). Direct field measurements are combined with weather...

Data for factors affecting prey availability and habitat usage of wintering piping plovers (Charadrius melodus) in Coastal Louisiana

Paul Leberg & Jessica L Schulz
Dataset includes observations of Piping Plovers made during winter shorebird surveys on Whiskey and Trinity Islands in Terrebonne Parish, Louisiana during the winter of 2013-2014. Attributes include location, behavioral, and microhabitat data as well as references to these data points in our local Access database.

Crop Water Use in the Central Valley of California using Landsat-derived evapotranspiration

Matthew P Schauer & Gabriel B Senay
Understanding how different crops use water over time is essential for planning and managing water allocation, water rights, and agricultural production. The main objective of this paper is to characterize the spatiotemporal dynamics of crop water use in the Central Valley of California using Landsat-based annual actual evapotranspiration (ETa) from 2008-2018 derived from the Operational Simplified Surface Energy Balance (SSEBop) model. Crop water use for ten crops are characterized at multiple scales. The Mann-Kendall trend...

Diet items consumed by wild-caught black carp (Mylopharyngodon piceus) in the U.S.

Barry C. Poulton, Patrick T Kroboth, Jennifer Bailey, Amy E. George, Steven E. McMurray, J. Scott Faiman & Duane C Chapman
An inventory (enumeration and taxonomic identification) of diet items consumed by wild-caught black carp, based on the examination of gut contents from fish that were collected in the lower Mississippi River drainage of the U.S.

Coastal California San Francisco Gartersnake Capture-Mark-Recapture Data (2008-2013)

Brian J Halstead, Michelle E Thompson, Melissa Amarello, Jeffrey J Smith, Glenn D Wylie, Eric J Routman & Michael L Casazza
These data are multi-state capture histories of 273 individual San Francisco gartersnakes collected at a site before and after a portion of the site was burned. Data collection began in 2008 and continued until 2013, and the prescribed fire was applied in the fall of 2010. These data support the following paper: Halstead, B. J., Thompson, M. E., Amarello, M. , Smith, J. J., Wylie, G. D., Routman, E. J. and Casazza, M. L. (2018),...

Occurrence of Polycyclic Aromatic Hydrocarbons Associated with Coal-Tar Based Pavement Sealant Related PAHs in Urban Sediments in Maine

Charles W. Culbertson
The dataset includes results from the analysis of sediments and solids collected from receptor sites receiving runoff from adjacent parking lots and other paved surfaces. Receptor sites include parking lot catch basins, retention ponds, drainage ditches, and storm-water discharge zones in streams and rivers. Samples were analyzed for percent moisture content and concentrations of 17 U.S. Environmental Protection Agency Priority Pollutant Polycyclic Aromatic Hydrocarbons (PAHs). Samples collected from parking lot sweepings (dust) also were analyzed...

North American Breeding Bird Survey Dataset 1966 - 2015, version 2015.1

Keith L Pardieck, Ziolkowski Jr., David, Kate Campbell & Marie-Anne R Hudson
The 1966-2015 North American Breeding Bird Survey dataset contains avian point count data for more than 700 North American bird taxa (primarily species, but also some races and unidentified species groupings). These data are collected annually during the breeding season, primarily June and May, along thousands of randomly established roadside survey routes in the United States and Canada. Routes are about 24.5 miles (39.2 km) long with counting locations placed at regular intervals, for a...

The North American Breeding Bird Survey, Results and Analysis 1966 - 2015. Version 12.23.2015

Jane E. Fallon, Daniel K Niven, William A Link, Ziolkowski Jr., David, Keith L Pardieck & John R Sauer
This website presents population change information for more than 400 species of North American birds, as estimated from the North American Breeding Bird Survey. Estimates of trend (interval-specific estimates of population change), annual indices of abundance, and maps of abundance and population change for these species are presented for a variety of regions.

Oceanographic and Water Quality Measurements in the Nearshore Zone at Matanzas Inlet, Florida, January- April, 2018

Steven E Suttles, John C Warner, Ellyn Montgomery & Marinna A Martini
The interactions of waves and currents near an inlet influence sediment and alter seafloor bedforms, especially during winter storms. As part of the Cross-Shore and Inlets (CSI) Processes project, instrumented platforms were deployed at two sites near Matanzas Inlet between January 24 and April 13, 2018. Matanzas Inlet is a natural, unmaintained inlet on the Florida Atlantic coast that is well suited to study inlet and cross-shore processes. The study sites were located offshore of...

Post-expedition report for USGS T-3 Ice Island heat flow measurements in the High Arctic Ocean, 1963-1973

Carolyn Ruppel, A.H Lachenbruch & B.V Marshall
In February 1963, the U.S. Geological Survey (USGS) began a study of heat flow in the Arctic Ocean Basin and acquired data at 356 sites in Canada Basin and Nautilus Basin and on Alpha-Mendeleev Ridge by the end of the project in 1973. The USGS heat flow and associated piston coring operations were conducted from a scientific station on the freely drifting T-3 Ice island (also known as Fletcher's Ice Island). The Naval Arctic Research...

Water-Quality, Bed-Sediment, and Biological Data (October 2016 through September 2017) and Statistical Summaries of Data for Streams in the Clark Fork Basin, Montana

Tom E. Cleasby, Michelle I. Hornberger & Matthew A. Turner
Water, bed sediment, and biota were sampled in streams from Butte to near Missoula, Montana, as part of a monitoring program in the upper Clark Fork Basin of western Montana. The sampling program was led by the U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency.

Thermal Data and Navigation for T-3 (Fletcher's) Ice Island Arctic Ocean Heat Flow Studies, 1963-73

Carolyn Ruppel, Deborah R Hutchinson, Arthur H. Lachenbruch & John K. Hall
The T-3 (Fletcher's) Ice Island in the Arctic Ocean was the site of a scientific research station re-established by the Naval Arctic Research Laboratory starting in 1962. Starting in 1963, the USGS acquired marine heat flow data and coincident sediment cores at sites in Canada Basin, Nautilus Basin, Mendeleev Ridge, and Alpha Ridge as the ice island drifted in the Amerasian Basin. At least 584 heat flow penetrations were attempted, and data were reported at...

Geotagged Low-Altitude Aerial Imagery From Unmanned Aerial System Flights Over Town Neck Beach, in Sandwich, Massachusetts, With Associated Ground Control Points, and Transects Collected by the U.S. Geological Survey on January 22, January 25, February 11, March 30, and September 21, 2016

Ellyn T Montgomery, Christopher R Sherwood, Peter Traykovski, Barry Irwin, Jonathan Borden, Marinna M Martini & Simon Minor
Low-altitude (30-120 meters above ground level) digital images of Town Neck Beach in Sandwich, Massachusetts, were obtained with a series of cameras mounted on small unmanned aerial systems (UAS, also known as a drone). Imagery was collected at close to low tide on five days to observe changes in beach and dune morphology. The images were geolocated by using the single-frequency geographic positioning system aboard the UAS. Ground control points (GCPs) were established by using...

Hierarchically nested and biologically relevant monitoring frameworks for Greater Sage-grouse, 2019, Nevada and Wyoming, Interim

Michael S. O�Donnell, David R Edmunds, Cameron Aldridge, Julie A Heinrichs, Steve Hanser, Brian G Prochazka & Peter S Coates
We developed a hierarchical clustering approach that identifies biologically relevant landscape units that can 1) be used as a long-term population monitoring framework, 2) be repeated across the Greater sage-grouse range, 3) be used to track the outcomes of local and regional populations by comparing population changes across scales, and 4) be used to inform where to best spatially target studies that identify the processes and mechanisms causing population trends to change among spatial scales....

Environmental DNA surveillance data for USGS streamgage sampling in the Columbia River Basin, 2018

Adam J Sepulveda
Environmental DNA quantitative PCR results for water samples collected in 2018 at USGS streamgages downstream of Columbia River Basin reservoirs that are considered to have moderate to high suitability for invasive dreissenid mussels. Water samples were tested for DNA of dreissenid mussels, kokanee salmon, and yellow perch.

Autonomous Underwater Vehicle Water-Quality Measurements in Back River, Savannah, Georgia, 2018-2019

Jimmy M Clark, Celeste A Journey & Lee J Bodkin
The Savannah Harbor Expansion Project (SHEP) began in January 2015 with the purpose of deepening the Savannah Harbor federal shipping channel to allow access to larger shipping vessels (U.S. Army Corps of Engineers, 2018a). There are various features and mitigation efforts to the SHEP, one of which is the installation of a dissolved-oxygen (DO) injection system at two locations along the Savannah River to maintain pre-SHEP DO levels in the harbor (U.S. Army Corps of...

Factors Affecting Spatial and Temporal Variations of Annual Summer Median Water Yields in Southwestern Michigan

David J Holtschlag
Median summer water yields and resultant flows are used in Michigan to regulate large water withdrawals to help prevent negative effects on characteristic fish populations. Large water withdrawals commonly are associated with irrigation in rural areas. In an earlier statewide report, an index-flow statistic for the period of record, defined as the median flow during the summer month of lowest flow, was used to characterize median summer flows and associated water yields. In this report,...

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