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High-resolution maps of historical and 21st century ecological drought metrics using multivariate matching algorithms for drylands of western U.S. and Canada High-resolution maps of historical and 21st century ecological drought metrics using multivariate matching algorithms for drylands of western U.S. and Canada
These data were compiled using a new multivariate matching algorithm that transfers simulated soil moisture conditions (Bradford et al. 2020) from an original 10-km resolution to a 30-arcsec spatial resolution. Also, these data are a supplement to a previously published journal article (Bradford et al., 2020) and USGS data release (Bradford and Schlaepfer, 2020). The objectives of our...
Location Data for Petrographic Samples and Isotopic and Age Data from Detrital Zircon Grains from Selected Rock Samples from St. Lawrence Island and the Western Brooks Range, Alaska Location Data for Petrographic Samples and Isotopic and Age Data from Detrital Zircon Grains from Selected Rock Samples from St. Lawrence Island and the Western Brooks Range, Alaska
This dataset contains a list of geologic station localities on St. Lawrence Island, Alaska, from which thin section samples were examined. The dataset also contains U-Pb isotopic data and ages of detrital zircon (DZ) from sedimentary rocks collected on St. Lawrence Island and in the western Brooks Range. All St. Lawrence Island samples (DZ and thin sections) were collected by U.S...
Data Used to Assess the Acute Physiological Response of Polar Bears to Helicopter Capture Data Used to Assess the Acute Physiological Response of Polar Bears to Helicopter Capture
This dataset is in five tables with data from ecophysiological studies of free-ranging polar bears of the Southern Beaufort Sea subpopulation. They were equipped with high-resolution activity sensors, body temperature loggers, and GPS satellite-telemetry collars, to compare physiological state and activity of bears during natural behavior with that experienced by bears during helicopter...
Data from a 2019 occupancy survey of alligator snapping turtles, Macrochelys temminckii, in south-central Louisiana Data from a 2019 occupancy survey of alligator snapping turtles, Macrochelys temminckii, in south-central Louisiana
This dataset contains data on trapping methodology, turtle captures, and environmental variables from a trapping effort targeting alligator snapping turtles (Macrochelys temminckii) in south-central Louisiana in 2019.
Co-occurance Simulation Modeling Co-occurance Simulation Modeling
R-based script used to simulate patterns of co-occurrence among two hypothetical species under patterns of avoidance, aggregation, and independence when the closure assumption is met or not, analyze simulated patterns with two-species occupancy models, and summarize the results.
Annual (1986-2020) land-use/land cover maps of the Santa Cruz Watershed and Tucson metropolitan area, Arizona Annual (1986-2020) land-use/land cover maps of the Santa Cruz Watershed and Tucson metropolitan area, Arizona
Annual (1986-2020) land-use/land cover maps at 30-meter resolution of the Tucson metropolitan area, Arizona and the greater Santa Cruz Watershed including Nogales, Sonora, Mexico. Maps were created using a combination of Landsat imagery, derived transformation and indices, texture analysis and other ancillary data fed to a Random Forest classifier in Google Earth Engine. The maps contain...
CAST Data Input Disaggregation from County and Land-River Segment Scale to National Hydrography Dataset Plus, Version 1.1 CAST Data Input Disaggregation from County and Land-River Segment Scale to National Hydrography Dataset Plus, Version 1.1
The detrimental effects of excess nutrients and sediment entering the Chesapeake Bay estuary from its watersheds have necessitated regulatory actions. Federally-mandated reductions are apportioned to bay jurisdictions based on the U.S. Environmental Protection Agency's Chesapeake Bay Time-Variable Watershed Model (CBPM). The Chesapeake Assessment Scenario Tool (CAST version CAST-19; cast
Vascular plant diversity and associated environmental variables along the Elwha River, Washington, 2005-2017 Vascular plant diversity and associated environmental variables along the Elwha River, Washington, 2005-2017
The data release presents observations of riparian vegetation, topography, soil characteristics, and ground cover in three river segments located above, below, and between the former Glines Canyon and Elwha Dams on the Elwha River, near Port Angeles, WA (river kilometers 2.5 to 31) to assess effects of dam removal on riparian vegetation. Vegetation data were collected before dam removal...
Baseline fish health metrics in at-risk habitats critical for pallid sturgeon (Scaphirhynchus albus) in the Upper Missouri River Basin and bull trout (Salvelinus confluentus) in the Flathead River, Montana, 2017-18 Baseline fish health metrics in at-risk habitats critical for pallid sturgeon (Scaphirhynchus albus) in the Upper Missouri River Basin and bull trout (Salvelinus confluentus) in the Flathead River, Montana, 2017-18
Baseline fish health information on pallid sturgeon and bull trout or appropriate surrogate species (shovelnose sturgeon, cutthroat trout, mountain whitefish) in critical habitats with elevated risks of oil spills. Shovelnose sturgeon (Scaphirhynchus platorynchus) were collected in three locations near the confluence of the Missouri and Yellowstone Rivers and cutthroat trout...
Photogrammetrically Controlled, Equirectangular Galileo Image Mosaics of Europa Photogrammetrically Controlled, Equirectangular Galileo Image Mosaics of Europa
The Solid State Imager (SSI) on NASA's Galileo spacecraft acquired more than 500 images of Jupiter's moon, Europa, providing the only moderate- to high-resolution images of the moon's surface. Images were acquired as observation sequences during each orbit that targeted the moon. Each of these observation sequences consists of between 1 and 19 images acquired close in time, that...
Location Information, Discharge, and Water-Quality Data for Selected Wells, Springs, and Streams in the Harney Basin, Oregon Location Information, Discharge, and Water-Quality Data for Selected Wells, Springs, and Streams in the Harney Basin, Oregon
This data release contains five comma separated value (csv) files that describe the location and water-quality data for wells, springs, and streams compiled for the U.S. Geological Survey (USGS) and Oregon Water Resources Department (OWRD) investigation of the groundwater resources of the Harney Basin, Oregon. The data included are site IDs, various site location information, well...
Soil-Water-Balance (SWB) model datasets for the Greater Wake County area, North Carolina, 1981-2019 Soil-Water-Balance (SWB) model datasets for the Greater Wake County area, North Carolina, 1981-2019
A Soil-Water-Balance (SWB) model was developed to estimate annual net infiltration below the root-zone for the Greater Wake County area, North Carolina for the period 1981 through 2019. The model was developed as part of a study to assess groundwater availability in the fractured-rock aquifers underlying Wake County. Curve number, maximum net infiltration rate, and root-zone depth...