Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Metabarcoding of environmental DNA samples collected below Jackson Lake Dam (Wyoming) and Palisades Reservoir (Idaho) in 2021-2022 (ver. 2.0, November 2024) Metabarcoding of environmental DNA samples collected below Jackson Lake Dam (Wyoming) and Palisades Reservoir (Idaho) in 2021-2022 (ver. 2.0, November 2024)
These metadata contain links to the original sequences on GenBank. These data show the final OTU and metadata tables for each environmental sample collected. Additionally, we included OTU tables resulting from bioinformatic decontamination steps (using microDecon) in R.
Wyoming road age and traffic volume estimated with machine learning and graph theory Wyoming road age and traffic volume estimated with machine learning and graph theory
We provide a roads dataset that includes the spatial location of roads, the estimated age of each road, and the predicted traffic volume of each road between 1986 and 2020 in Wyoming, USA. Our annual estimates of traffic volume are available for each road and include estimates for all vehicles and truck only traffic. Moreover, we provide the estimated age of each road, where a minimum...
The Extended Global Lake area, Climate, and Population Dataset (GLCP) The Extended Global Lake area, Climate, and Population Dataset (GLCP)
A changing climate and increasing human population necessitate understanding global freshwater availability and temporal variability. To examine lake freshwater availability from local-to-global and monthly-to-decadal scales, we created the Global Lake area, Climate, and Population (GLCP) dataset, which contains annual lake surface area for 1.42 million lakes with paired annual basin...
Thin section images, automated mineralogy scans, lithogeochemistry, and Nd-Sr-Pb isotopic analysis of samples from a mostly buried layered mafic intrusion, Wet Mountains, Colorado 2022-2024 Thin section images, automated mineralogy scans, lithogeochemistry, and Nd-Sr-Pb isotopic analysis of samples from a mostly buried layered mafic intrusion, Wet Mountains, Colorado 2022-2024
This dataset includes thin section images, automated mineralogy mineral maps, whole-rock geochemical data, and whole-rock Nd-Sr-Pb isotopic analysis of samples collected from nine mafic-ultramafic outcrops in the Wet Mountains, southern Colorado, during the summer of 2022. These data will accompany an upcoming journal publication and are intended to supplement recently collected airborne...
Eelgrass (Zostera marina) Maps from 2016 and 2020, Izembek Lagoon, Alaska Eelgrass (Zostera marina) Maps from 2016 and 2020, Izembek Lagoon, Alaska
This data package includes 40 geospatial rasters (maps) depicting various metrics about eelgrass (Zostera marina) coverage at Izembek Lagoon, Alaska, during 2016 and 2020. Two maps were produced from two Sentinel-2 satellite images collected on July 1, 2016, and August 14, 2020. Spectral classes derived from each satellite image were annotated and mapped based on data collected in the...
Elevation change in the watershed of Rito de los Frijoles, Bandelier National Monument, New Mexico from 2010 to 2016 Elevation change in the watershed of Rito de los Frijoles, Bandelier National Monument, New Mexico from 2010 to 2016
Intense precipitation following the June 2011 Las Conchas Fire in the Jemez Mountains, New Mexico, led to widespread debris flows in the watershed of Rito de los Frijoles in Bandelier National Monument. Sediment eroded by these debris flows was transported along Rito de los Frijoles during floods in 2011 and 2013. This dataset contains two tabular files and one raster digital file. The...
GIS shapefile and summary tables of the extent of irrigated agricultural land use for 11 counties fully or partially within the St. Johns River Water Management District Florida, 2022–23 GIS shapefile and summary tables of the extent of irrigated agricultural land use for 11 counties fully or partially within the St. Johns River Water Management District Florida, 2022–23
A Geographic Information System shapefile and summary tables of the extent of irrigated agricultural land-use are provided for eleven counties fully or partially within the St. Johns River Water Management District (full-county extents of: Brevard, Clay, Duval, Flagler, Indian River, Nassau, Osceola, Putnam, Seminole, St. Johns, and Volusia counties). These files were compiled through a
Data and rloadest models used to estimate sediment and nutrient loads in selected New York tributaries to eastern Lake Erie Data and rloadest models used to estimate sediment and nutrient loads in selected New York tributaries to eastern Lake Erie
This data release contains data and rloadest models used to estimate sediment and nutrient loads in selected New York tributaries to eastern Lake Erie. Load estimates for suspended sediment and nutrients were calculated using rloadest (Lorenz and others, 2013; Runkel and De Cicco, 2017) models. Included are a zip file with input and output files for selected rloadest models for 13 U.S...
Concentrations of 1,4-Dioxane, Per- and Polyfluorinated Substances (PFAS), Chlorofluorocarbons (CFCs), Methyl Tert-Butyl Ether (MTBE), and Trihalomethanes (THMs) in Groundwater, Nassau County, New York, 2019-2022 Concentrations of 1,4-Dioxane, Per- and Polyfluorinated Substances (PFAS), Chlorofluorocarbons (CFCs), Methyl Tert-Butyl Ether (MTBE), and Trihalomethanes (THMs) in Groundwater, Nassau County, New York, 2019-2022
This data release contains 1-4 dioxane, per- and polyfluoroalkyl substances (PFAS), chlorofluorocarbons (CFCs), methyl tert-butyl ether (MTBE), and trihalomethanes (THMs) concentration data from groundwater samples collected from 78 monitoring wells in Nassau County New York. Samples were collected from May 2019 through December 2022 at wells ranging in depth from twenty-three feet to...
Broadband Ground Motion Simulations for an Earthquake “Doublet” on the Hayward and Calaveras Faults Broadband Ground Motion Simulations for an Earthquake “Doublet” on the Hayward and Calaveras Faults
The occurrence and impact of the February 2023 earthquake doublet in Türkiye, where an Mw 7.8 event was followed roughly 9 hours later by an Mw 7.5 event on an adjacent fault, begs the question: What would be the impact of such a sequence in California? As part of the effort to address this question, this Data Release consists of simulated ground motions for a hypothetical doublet...
Martian Frost Observations from Gullied Locations Derived from 2006-2015 HiRISE Images Martian Frost Observations from Gullied Locations Derived from 2006-2015 HiRISE Images
These data describe observations of frost and related features in alcoves and slopes near Martian gully landforms. The base data are images from the High Resolution Imaging Science Experiment (HiRISE) acquired prior to Ls=0 of Mars Year 33 (June 18, 2015).
Surface Elevation Table (SET) data from the Blackwater National Wildlife Refuge (2010-2013) Surface Elevation Table (SET) data from the Blackwater National Wildlife Refuge (2010-2013)
Here we provide data used to report on changes in tidal marsh elevation at the Blackwater National Wildlife Refuge (NWR), located in Dorchester, Maryland, USA. This dataset includes Surface Elevation Table (SET) measurements taken from 40 SET platforms distributed across the refuge. At each platform location annual measurements of wetland surface elevation were made from 20010-2013.