8,877 Works

Lake Ontario Nearshore Nutrient Study (LONNS), 2018, Lake Ontario, New York

Benjamin N Fisher & Brett A Hayhurst
From April through September of 2018, water-quality data were collected at 35 locations from select tributaries, embayments, and nearshore lake locations along New York's portion of Lake Ontario in support of the 2018 Cooperative Science and Monitoring Initiative, the Great Lakes Restoration Initiative, and the Lakewide Action Management Plan. These data include environmental, replicate, and blank samples of nutrients, suspended solids, sodium, and chloride, as well as field measurements of physical parameters (temperature, specific conductance,...

USGS National and Global Oil and Gas Assessment Project-Permian Basin Province, Midland Basin, Spraberry Formation Assessment Units

Kristen R Marra
The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and...

National Land Cover Database (NLCD) 1992 Land Cover Conterminous United States

Jon Dewitz
The National Land Cover Database (NLCD) 1992 Land Cover layer was produced through a cooperative project conducted by the Multi-Resolution Land Characteristics (MRLC) Consortium. The MRLC Consortium is a partnership of federal agencies (www.mrlc.gov), consisting of the U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration (NOAA), the U.S. Environmental Protection Agency (EPA), the U.S. Department of Agriculture - Forest Service (USDA-FS), the National Park Service (NPS), the U.S. Fish and Wildlife Service (FWS),...

Sediment toxicity test endpoints from the U.S. Geological Survey 2014 Southeast Regional Stream Quality Assessment

Patrick W Moran & Nile E Kemble
These data present the results of sediment toxicity tests conducted by the US Geological Survey's Columbia Environmental Research Center (CERC) in Columbia, MO, in 2014. The sediments were collected as one part of a larger study on stream quality in Southeastern USA streams during the summer of 2014. For more information on the larger study see- https://webapps.usgs.gov/rsqa. The data include results from two test species, the amphipod Hyalella azteca and the midge Chironomus dilutus (formerly...

Multichannel sparker seismic reflection data of USGS field activity 2018-658-FA collected between Cape Blanco and Cape Mendocino from 2018-10-04 to 2018-10-18

Melanie J Michalak, Daniel O'Shea, Alicia F Balster-Gee, Jared W Kluesner, Janet Tilden Watt, Jenna C Hill, Daniel Brothers, Melanie J. Michalak & Daniel O?Shea
This data release contains processed high-resolution multichannel sparker seismic-reflection (MCS) data that were collected aboard Humboldt State University's R/V Coral Sea in October of 2018 on U.S. Geological Survey cruise 2018-658-FA on the shelf and slope between Cape Blanco, Oregon, and Cape Mendocino, California. MCS data were collected to characterize quaternary deformation and sediment dynamics along the southern Cascadia margin.

Aquifer test data for multiple-well monitoring site LHSP, Kern County, California

Rhett R. Everett, Brandon Joseph Ledbetter & Olga Rodriguez
To determine aquifer characteristics, pneumatic slug tests were performed on selected zones and aquifers at a monitoring site near the Lost Hills oil field in the Southern San Joaquin Valley in Kern County. On May 30th and 31st, 2018, pneumatic slug tests were performed at five monitoring wells located at the multiple-well groundwater-monitoring site LHSP (26S/21E-07J1 through ?J5) near Lost Hills, CA in the Southern San Joaquin Valley. Data were collected using In-Situ LevelTROLL 500...

MODFLOW-2000 and MODPATH4 used to simulate groundwater flow and contaminant transport in the Pohatcong Valley, Warren County, New Jersey

Glen B Carleton
The U. S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, developed a numerical groundwater flow model, using MODFLOW2000, to simulate groundwater flow in the Pohatcong Valley including the area within the Pohatcong Valley Ground Water Contamination Site. In 1978, the chlorinated solvents trichloroethene (TCE) and tetrachloroethene (PCE) were detected in the Pohatcong Valley in production wells in Washington Borough and Washington Township, Warren County, New Jersey. Subsequent investigation revealed that many domestic...

Software Release ModelMuse Version 4.1

Richard B Winston

Horizontal-to-Vertical Spectral Ratio Soundings and Depth-to-Bedrock Data for Geohydrology and Water Quality Investigation of the Unconsolidated Aquifers in the Enfield Creek Valley, Town of Enfield, Tompkins County, New York, April 2013 - August 2015

Benjamin N Fisher, Paul M Heisig & William M Kappel
From April 2013 to August 2015, the U.S. Geological Survey, in cooperation with the Town of Enfield and the Tompkins County Planning Department, collected horizontal-to-vertical seismic soundings at 69 locations in the Enfield Creek valley to help determine thickness of the unconsolidated deposits and depth to bedrock. The HVSR technique, commonly referred to as the passive-seismic method, is used to estimate the thickness of unconsolidated sediments and the depth to bedrock (Lane and others, 2008)....

Potential Accumulation of Soil Organic Matter from Carbon Cycling within Greater Everglades Cypress and Pine Forested Wetlands data

W. Barclay Shoemaker, Frank E Anderson, Amanda C Booth, Matt Sirianni & Andre Daniels
These data quantify components of the carbon cycle within Big Cypress National Preserve in Florida. Continuous data time-series include net ecosystem exchange of carbon dioxide, lateral advection of water-borne carbon, methanogenesis, and soil bulk density.

Estimated daily mean streamflows for HUC12 pour points in the southeastern United States, 1950--20XX

Angela L Robinson & Rodney R Knight
This data release contains estimated daily streamflow values for 9,203 12-digit hydrologic unit codes (HUC12s) in the southeastern United States for the period 1950-2009. The files are provided in text format, which can be used in R and in other programs. The 'Site Info' folder contains 18 files with streamgage information and the 'Daily Values' folder contains 18 files with predicted daily streamflow values for a given HUC12. Each of the datasets contains 500, 501,...

Tracking data for Red-throated Loons (Gavia stellata)

Brian D Uher-Koch, J.A. Schmutz & David C Douglas
This metadata document describes the data contained in the "rawData" folder of this data package. This data package contains all data collected by the Argos System from 92 satellite transmitters attached to Red-throated Loons on their breeding range in coastal areas throughout Alaska, 2000-2010. Five data files are included in the "rawData" folder of this data package. Two data files (with identical content) contain the raw Argos DIAG (Diagnostic) data, one in the legacy verbose...

Detection of invasive aquatic plants Myriophyllum spicatum and Egeria densa in lakes using eDNA, field and mesocosm data

Carl O Ostberg, Lauren M Kuehne, Dorothy M Chase, Jeff Duda & Julian D Olden
We conducted a study to test the factors related to detectability of two invasive aquatic plants (Egeria densa and Myriophyllym spicatum) using environmental DNA (eDNA), over extended periods of time, and specifically examined how plant growth stage and abundance relates to eDNA detection in semi-natural and natural conditions. This dataset is from sampling performed in summer of 2018 in lakes with varying species abundances, and a subset of lakes were re-sampled to test temporal variability...

Discharge and sediment data for selected tributaries to the Anacostia River, Washington, District of Columbia, 2003-18

Timothy P Wilson
Data release consists of five comma delimited text files containing discharge and sediment data for five gaged tributaries to the Anacostia River in Washington, District of Columbia. Data were collected from 2003 through 2018.

Sediment Chemistry and Physical Properties from Sediments in the Aztec Drinking Water Reservoir #1

Johanna M Blake
The elemental concentration over time of sediments from four trenches from the Aztec drinking water reservoir #1 was measured. The source of water to the reservoir is the Animas River, which has historical mining sites in the watershed. In order to evaluate the geochemical record in the sediments, several types of data were collected. Bulk chemical analysis of sediments with depth in the reservoir as well as X-ray fluorescence measurements provide information about the sediment...

Coastal Bathymetry Data Collected in August 2018 from the Chandeleur Islands, Louisiana

Chelsea A Stalk, Jennifer L Miselis, Joseph J Fredericks, Nancy T DeWitt & Billy J Reynolds
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida (USGS-SPCSMC), conducted a bathymetric survey of the Northern Chandeleur Islands, in August 2018. During this study, multibeam bathymetry data were collected aboard the research vessel (R/V) Sallenger, while single-beam bathymetry data were collected aboard the R/V Jabba Jaw. Efforts were supported by the Barrier Island Evolution Project (BIER), which aims to characterize the interannual evolution of barrier islands...

Incubation recess times for mallard and gadwall hens nesting in Grizzly Island Wildlife Area 2015 - 2017

Rebecca L Croston & Josh T Ackerman
This dataset describes incubation recess timing for mallard and gadwall hens nesting in Grizzly Island Wildlife Area in breeding seasons 2015-2017. It includes the start time, end time, and duration of recesses. This data supports the following publication: Croston, R., Hartman, C.A., Herzog, M.P., Casazza, M.L., Feldheim, C.L. and Ackerman, J.T., 2020. Timing, frequency, and duration of incubation recesses in dabbling ducks. Ecology and Evolution. https://doi.org/10.1002/ece3.6078.

Southeast Florida and Florida Keys: Antibiotic Resistance in Association with Ocean Outfalls and the Antibiotic Treatment of Diseased Corals

Dale W Griffin
The purpose of these datasets was to define which samples contained antibiotic resistance genes (screened antibiotic resistance gene targets) and the number of detectable targets per sample (sediment, coral mucus and water). These data were determined from samples collected in Southeast Florida and the Florida Keys, in support of the Southeast Florida Coral Reef Initiative.

Microsatellite genotypes for desert tortoise (Gopherus agassizii) in Ivanpah Valley (2015-2017)

Kirsten E Dutcher, Amy Vandergast, Todd C Esque, Anna Mitelberg & Kenneth E Nussear
These data show the multilocus genotypes, gender, and midline carapace length (MCL) for desert tortoises (Gopherus agassizii) sampled in the central portion of the Mojave desert tortoise range. This data supports the following publication: Dutcher, K.E., Vandergast, A.G., Esque, T.C., Mitelberg, A., Matocq, M.D., Heaton, J.S. and Nussear, K.E., Genes in space: what Mojave Desert tortoise genetics can tell us about landscape connectivity. Conservation Genetics, pp.1-15.

Geochemistry of sediment and organic matter in drainages burned by the Altas and Nuns wildfires in October 2017 and of nearshore seabed sediment in north San Francisco Bay from March to April 2018

Renee K Takesue
Fine-grained sediment was collected from the banks of Napa River, Sonoma Creek, and tributaries in March 2018 and from shallow nearshore areas of the northern reach of San Francisco Bay in April 2018. Bulk sediment was dated using activities of short-lived cosmogenic radionuclides (beryllium-7, cesium-137, and lead-210). Contents of potentially toxic metals and source-rock-indicative elements, including rare earth elements, were quantified in the fine fraction of sediment (particles less than 0.063 mm diameter). Ratios of...

Raw Pin Data from Rod Surface-Elevation Table (rSET) Measurements and Water Level Data at Specified Locations along Monks and Swaderick Creeks, Aberdeen Proving Ground, Maryland, 2018-2019

Ellie P Foss
This metadata record contains a shapefile of site locations and 3 tables used to assess wetland elevation change over time and the long-term effects of sea-level rise to vulnerable tidal wetlands along the Edgewood peninsula of Aberdeen Proving Ground, Maryland. Included in the dataset are raw pin measurements of wetland sediment elevation and water levels measured for selected sites along Monks Creek and Swaderick Creek, in addition to water levels at the Marina along Bush...

Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay Nontidal Network stations: Water years 1985-2018

Douglas L Moyer, Michael J Langland & Guoxiang Yang
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2018. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment...

Channel width measurements for selected streamgage sites in Montana

Katherine J Chase, Roy R Sando, Sean M Lawlor, Chad B Reese, Peter M McCarthy, DeAnn M Dutton, Laura L Hallberg & Bryan L Collins
The WY-MT WSC conducted a study to develop regression equations for estimating peak-flow frequencies in Montana, using channel-width characteristics. Channel widths were measured in the field and from aerial photographs. This data release includes three child items: a table of field measurements, a table of measurements from aerial photographs, and a summary table of the data (field measurements and measurements from aerial photographs) used to develop the regression equations.

Data Release for Additional Period and Site Class Data for the 2018 National Seismic Hazard Model for the Conterminous United States (ver. 1.1, February 2020)

Allison M Shumway, Kenneth S Rukstales & Brandon S Clayton
The updated 2018 National Seismic Hazard Model includes new ground motion models, aleatory uncertainty, and soil amplification factors for the central and eastern U.S. and incorporates basin depths from local seismic velocity models in four western U.S. (WUS) urban areas. These additions allow us, for the first time, to calculate probabilistic seismic hazard curves for an expanded set of spectral periods (0.01 s to 10 s) and site classes (VS30 = 150 m/s to 1,500...

Carbon assessment of Taxodium distichum knees in Mississippi River Alluvial Valley (2004)

Evelyn R Anemaet
Estimates of the biomass of the knees of baldcypress (Taxodium distichum), and oddly shaped, difficult to quantify vegetation components, can be critical to improve estimates of carbon stock in blue carbon assessments. To this end, tree metrics (e.g., density, height, biomass) were examined in 2004 at mixed baldcypress swamps across the Mississippi River Alluvial Valley (MRAV) from Illinois to Louisiana. Biomass of knees was estimated using the point-centered quarter method and volume/mass regressions calculated from...

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