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.
Filter Total Items: 16316
precompute precompute
The R package precompute is used to perform periodic computations to set up data for loading and rendering in Shiny applications. These computations typically take too long to conduct on the fly, which is why they are performed with some frequency using this package.
Waterfowl Lead Exposure Data in Alaska and Russia, 1993-2022 Waterfowl Lead Exposure Data in Alaska and Russia, 1993-2022
This dataset identifies lead (Pb) concentration found in the blood of waterfowl sampled in western and northern Alaska and eastern Russia between 1993 and 2022. Data include age, sex, body measurement, capture location, presence or absence of lead shot on x-rays, and blood lead levels. Because the study took place over a number of years at the same study sites, many of the same birds...
Hydrogeologic Framework data and models for the Eel River groundwater basin, Humboldt County, California Hydrogeologic Framework data and models for the Eel River groundwater basin, Humboldt County, California
This data release contains a geospatial database related to a digital 3D hydrogeologic framework model (3D HFM) of the Eel River Valley groundwater basin, California. The geospatial database contains two main data elements: (1) input data to the 3D HFM; (2) interpolated elevations and thicknesses of hydrogeologic units as a cellular array, which are a spatial representation of the 3D HFM...
Habitat use and trends of landbirds using National Wildlife Refuges along the northern Gulf of Mexico during migration Habitat use and trends of landbirds using National Wildlife Refuges along the northern Gulf of Mexico during migration
This data release includes measures of vertically-integrated reflectivity (VIR) and estimates of linear trends in VIR as observed by the Weather Surveillance Radar 1988 Doppler (WSR-88D) stations along the Gulf of Mexico during spring and autumn migrations from 2018-2020. The VIR is a measure of bird density and can be used to map the spatial distribution of birds as they leave stopover...
Attributed North American Grid-Based Offshore Sampling Frames Attributed North American Grid-Based Offshore Sampling Frames
This sampling frame is a set of grid-based, finite-area frames spanning the offshore areas surrounding Canada, the United States, and Mexico, and is intended for use with the North American Bat Monitoring Program (NABat). A Generalized Random-Tessellation Stratified (GRTS) Survey Design draw was added to the sample units from the raw sampling grids (https://doi.org/10.5066/P9XBOCVV). The...
Ground Penetrating Radar Profiles collected in Charleston, SC, in June 2015 for imaging shallow faults Ground Penetrating Radar Profiles collected in Charleston, SC, in June 2015 for imaging shallow faults
This Data Release contains a series of reconnaissance Ground-Penetrating Radar (GPR) profiles collected in 2015 to image potential shallow faulting related to the 1886 M~7 earthquake near Charleston, South Carolina, and any other faults in the area. The data include coordinates for the profiles as .kmz files, and processed GPR data in SEGY format, with both the unmigrated and migrated...
Annual Nutrient Loads at Illinois EPA Ambient Water Quality Monitoring Network Sites, Water Years 1976–2021 Annual Nutrient Loads at Illinois EPA Ambient Water Quality Monitoring Network Sites, Water Years 1976–2021
This data release contains estimates of annual nitrogen and phosphorus loads, as well as loads of other constituents, from sites in the Illinois Environmental Protection Agency (Illinois EPA) Ambient Water Quality Monitoring Network. The loads were estimated using Weighted Regressions on Time, Discharge, and Season with Kalman filtering (WRTDS-K) and existing discrete water-quality data...
National-scale, remotely sensed lake trophic status 1984-2020 National-scale, remotely sensed lake trophic status 1984-2020
Lake trophic status is a key water quality property that integrates a lake's physical, chemical, and biological processes. Despite the importance of trophic status as a gauge of lake water quality, standardized and machine readable observations are uncommon. Remote sensing presents an opportunity to detect and analyze lake trophic status with reproducible, robust methods across time and...
Hydrothermal friction experiments in quartzite: The effect of temperature and normal stress on strength recovery Hydrothermal friction experiments in quartzite: The effect of temperature and normal stress on strength recovery
Laboratory slide-hold-slide tests were conducted in a conventional triaxial deformation configuration on 3/4-inch diameter cylindrical cores of Eureka quartzite bisected by a sawcut oriented at 30 degrees from vertical. Tests were conducted at constant normal stresses of 30, 110, and 210 MPa with a 10 MPa pore fluid pressure. The pore fluid was deionized water. Experiments were conducted...
Inventory map of submarine and subaerial-to-submarine landslide features in Barry Arm Fjord, Prince William Sound, Alaska Inventory map of submarine and subaerial-to-submarine landslide features in Barry Arm Fjord, Prince William Sound, Alaska
Documenting and assessing submarine or subaerial-to-submarine landslides is critical for understanding the history of slope failures and related tsunami impacts in rapidly deglaciating fjord environments. The discovery of the ~500-million-cubic-meter slow-moving subaerial Barry Arm Landslide in northwest Prince William Sound, Alaska (Dai and others, 2020) highlights the need to better...
GPS Telemetry and other data sets of Florida manatees from Crystal River, FL 2006-2018 GPS Telemetry and other data sets of Florida manatees from Crystal River, FL 2006-2018
These data represent 1) Telemetry from Florida manatee from Crystal River, FL 2006-2018 2) Observations of manatees, swimmers and paddlecraft from Three Sisters Springs, Crystal River, FL 2014-2017 3) GIS polygons of aquatic landscape features from Crystal River, FL.
Hakalau Forest NWR seedling and substrate data, 2015 Hakalau Forest NWR seedling and substrate data, 2015
This data release includes data and metadata on seedling counts and substrate cover in forest plots in Hakalau Forest National Wildlife Refuge on Hawaiʻi Island. Broadly, this study asks how seedlings densities relate to their microsites in terms of grass cover and nurse log and moss presence.