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Argon geochronologic data from New Zealand's Ruapehu and Tongariro Volcanoes used to illustrate geochronology systematics Argon geochronologic data from New Zealand's Ruapehu and Tongariro Volcanoes used to illustrate geochronology systematics
Understanding the eruptive histories and petrogenetic models that underpin hazard assessments at active volcanoes typically requires high-precision ages for late Pleistocene to Holocene lava flows. These data vary in quality, typically related to textural and chemical variations in lava flow samples. These samples were part of an existing 40Ar/39Ar dataset for andesitic-dacitic rocks...
qPCR data from eDNA autosampler surveys for salmon migrating through the Lake Washington Ship Canal, June - September 2022 qPCR data from eDNA autosampler surveys for salmon migrating through the Lake Washington Ship Canal, June - September 2022
The content contains metadata from an eDNA survey that assessed the efficacy of an autonomous eDNA sampler for tracking Chinook, sockeye, and coho salmon migrating through the Lake Washington Ship Canal between June and September 2022.
Sediment temperature data, sediment redox data, and vertical specific discharge calculations from a salt marsh along the Herring River in Wellfleet, MA, September to December 2023 and June to July 2025 Sediment temperature data, sediment redox data, and vertical specific discharge calculations from a salt marsh along the Herring River in Wellfleet, MA, September to December 2023 and June to July 2025
Groundwater – surface water (GW-SW) exchange plays a fundamental role in the transport of energy and solutes in coastal salt marshes, which may be influenced by flow of terrestrial groundwater and tidal fluctuations. Sediment heat tracing and redox tracking experiments were conducted at a hillslope-adjacent fringing salt marsh on the Herring River in Wellfleet, MA to test new monitoring...
Ecosystem carbon stocks and fluxes on 62 Department of Defense installations within the contiguous United States from 2001-2021 Ecosystem carbon stocks and fluxes on 62 Department of Defense installations within the contiguous United States from 2001-2021
This data set contains tabular simulation model output from the Land Use and Carbon Simulator (LUCAS) summarizing annual changes in land use and land cover (LULC), ecosystem carbon stocks and ecosystem carbon fluxes within 62 U.S. Department of Defense (DOD) installations covering a total land area of approximately 106 hectares across the contiguous United States (CONUS) from 2001 to...
Nutrient mass and internal cycling data for Great Salt Lake, UT, 2020 Nutrient mass and internal cycling data for Great Salt Lake, UT, 2020
The Great Salt Lake (GSL) ecosystem relies on a balanced supply of nutrients to support habitat and industrial uses (Belovsky and others, 2011). To better understand processes controlling GSL nutrient availability, this dataset includes field measurements and laboratory analyses from the water column, sediment, porewater, sediment slurry, brine shrimp, river inflows, sediment traps, and
2018-2019 Freshwater Invertebrate Data to Support Research on Community Structure and Secondary Production Under Different Water Sources 2018-2019 Freshwater Invertebrate Data to Support Research on Community Structure and Secondary Production Under Different Water Sources
This dataset contains CSV files of freshwater invertebrate and stream physicochemsitry data used to calculate secondary production of invertebrate biomass.
Geochemistry and x-ray diffraction data for hydrothermal manganese oxide rocks from the Samoa hotspot region in the South Pacific Ocean collected during research expedition KM0506 Geochemistry and x-ray diffraction data for hydrothermal manganese oxide rocks from the Samoa hotspot region in the South Pacific Ocean collected during research expedition KM0506
Hydrothermal manganese oxide rocks were collected via dredge from the Tulaga Seamount, the flank of Ofu Island, and from Soso seamount in the Samoa hotspot region offshore American Samoa during the KM0506 cruise aboard the R/V Kilo Moana in April of 2005. Rocks were subsampled at USGS and analyzed for mineralogy by x-ray diffraction as well as sent to SGS laboratories, Canada for major...
Data Examining the Effects of Fire Timing and Snow Depth on Plant Emergence Phenology Growth and Flowering in a Restored Tallgrass Prairie in Wisconsin from 2016–2023 Data Examining the Effects of Fire Timing and Snow Depth on Plant Emergence Phenology Growth and Flowering in a Restored Tallgrass Prairie in Wisconsin from 2016–2023
This dataset includes data from a study testing the interacting effects of disturbance regime and winter snow depth on plant emergence, growth, and reproductive effort in a restored tallgrass prairie. The “Treatments.csv” file includes details of the experimental design. The design includes two snow manipulation treatments (ambient or reduced snow) nested within one of three disturbance...
Data Release - Geologic Map geodatabase of the valley corridor of the 59-mile reach of the Missouri National Recreational River, South Dakota, Nebraska, and Iowa: Gavins Point Dam to North Sioux City Data Release - Geologic Map geodatabase of the valley corridor of the 59-mile reach of the Missouri National Recreational River, South Dakota, Nebraska, and Iowa: Gavins Point Dam to North Sioux City
This geologic map area of 5,430 km2 spans a reach of the lower Missouri River valley and adjoining uplands for about 100 kilometers east of Gavins Point Dam, the easternmost mainstem dam on the Missouri River. Understanding the surficial geologic history of the valley is relevant to natural resource management of the Missouri National Recreational River and is foundational to improved
Fuels Data for the 2000 Highland Creek Fire and 2017 Legion Lake Fire in Blacks Hills, SD, Collected in 2025 Fuels Data for the 2000 Highland Creek Fire and 2017 Legion Lake Fire in Blacks Hills, SD, Collected in 2025
Eleven pre-established plots within the 2000 Highland Creek Fire perimeter were revisited in 2025 with the purpose of characterizing long-term vegetation recovery as well as present-day fuel loads and forest structure. These research plots were originally established in Wind Cave National Park to assess burn severity using the Composite Burn Index. Additionally, 28 plots established in...
Geochemical and hydrologic data supporting assessment of a low-temperature geothermal system in Steamboat Springs, Colorado Geochemical and hydrologic data supporting assessment of a low-temperature geothermal system in Steamboat Springs, Colorado
Geothermal springs may be connected to both shallow and deep groundwater sources, and identification of variable spring sources may assist with resource management of geothermal systems. Numerous geothermal springs exist near the Yampa River in Steamboat Springs, Colorado and local water and land management agencies could benefit from information on the sources of these springs. This...
Input and Output files from the Zonebudget program used with MODFLOW models to compute regional groundwater budgets for the Virginia Coastal Plain aquifer system Input and Output files from the Zonebudget program used with MODFLOW models to compute regional groundwater budgets for the Virginia Coastal Plain aquifer system
This data release contains results from annual water budgets computed for two groundwater-flow models of the Virginia Coastal Plain published by the Virginia Department of Environmental Quality (Virginia Department of Environmental Quality, 2020, 2024a and 2024b). Both models simulated historical withdrawals from approximately 1900 to 2023 and projected withdrawal conditions to 2073...