80 datasets found
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Federal
Data for Use of historical isoscapes to develop an estuarine nutrient baseline
U.S. Environmental Protection Agency —
Coastal eutrophication is a prevalent threat to the healthy functioning of ecosystems globally. While degraded water quality can be detected by monitoring oxygen,... -
Federal
Mercury Concentrations in Resident Lake Fish Sampled from Katmai National Park and Preserve in 2021
Department of the Interior —
These data were collected as part of the Southwest Alaska Inventory and Monitoring Network (SWAN) freshwater contaminants protocol. The protocol outlines a framework... -
Federal
Comparison of methane concentration and stable carbon isotope data for natural samples analyzed by discrete sample introduction module - cavity ring down spectroscopy (DSIM-CRDS) and traditional methods
Department of the Interior —
A discrete sample introduction module (DSIM) was developed and interfaced to a cavity ring-down spectrometer to enable measurements of methane and CO2 concentrations... -
Federal
Chemical and isotopic data for thermal and non-thermal features across Yellowstone National Park, v. 2.0
Department of the Interior —
Degassing thermal features at Yellowstone National Park include spectacular geysers, roiling hot springs, bubbling mud pots, fumaroles, frying pans, and areas of... -
Federal
Geochemical Composition of Urban Stormwater Runoff Within the Conterminous United States from Samples Collected in 2016-2017
Department of the Interior —
These analyses provide the basic geochemical composition of urban stormwater runoff from rainwater/stormwater that does or has the potential to infiltrate groundwater... -
Federal
Data supporting Modeling the Oxygen Isotope Anomaly of Reactive Nitrogen in the Community Multiscale Air Quality (CMAQ) Model
U.S. Environmental Protection Agency —
The data contains CMAQ fortran model code and shell scripts used for configuration in the work of Walters et al. Links are provided to base (unmodified) CMAQ release... -
Federal
Upper Animas Rare Earth Element and Water Isotope Dataset - USGS data release
U.S. Environmental Protection Agency —
The study results include concentrations of Rare Earth Elements and stable isotope compositions of water from an acid mine drainage-affected watershed in southwest... -
Federal
Stable Isotopic Data (δ13C and δ2H) for Reference Materials HCG-1, HCG-2, and HCG-3
Department of the Interior —
Stable carbon and hydrogen isotopic data generated by off-line preparation and dual inlet mass spectrometric analysis used the determine the recommended values for... -
Federal
Niche changes of three fish species in Narragansett Bay
U.S. Environmental Protection Agency —
Non-EPA data are owned by Roger Williams University. This dataset is associated with the following publication: Taylor, D., C. Pearson, L. Green-Gavrielidis, N.... -
Federal
Assessment of Mercury Cycling in the St Louis River, MN using Mercury and Food Web (Carbon and Nitrogen) Stable Isotopes: U.S. Geological Survey Data Release
U.S. Environmental Protection Agency —
Mercury concentration, mercury stable isotope ratio, and carbon and nitrogen stable isotope ratio data as applicable for sediment, water, invertebrates, and fish... -
Federal
Western USA Assessment of High Value Materials in Geothermal Fluids and Produced Fluids
Department of Energy —
This submission includes the following: - Field Characteristics: Describes the geological and production field characteristics of sampling sites - Geochemistry of... -
Federal
Arctic Cisco Stable Isotope Data, Prudhoe Bay, August 2009
Department of the Interior —
This data set documents the carbon and nitrogen stable isotope ratios of age-0 Arctic cisco (Coregonus autumnalis) captured in Prudhoe Bay, Alaska in August 2009. -
Federal
Aquatic Stable Isotopes in the Owens River Gorge, CA 2017-2021
Department of the Interior —
This dataset includes stable nitrogen-15 and carbon-13 isotope analysis data derived from freshwater aquatic and semi-aquatic primary producers, invertebrates, and... -
Federal
Narragansett Bay hypoxia history core C & N data
U.S. Environmental Protection Agency —
Carbon and nitrogen concentrations and isotopic fractionation in sediment cores. This dataset is associated with the following publication: Boothman, W.S., and L.... -
Federal
Changes in Organic Carbon Source and Storage with Sea Level Rise-Induced Transgression in a Chesapeake Bay Marsh
Department of the Interior —
This data set includes a variety of bulk organic carbon, lignin-phenol biomarker, and sedimentation rate data from a set of sites in the Blackwater Marsh in... -
Federal
Precipitation and stream water stable isotope data from the Marys River, Oregon in water year 2015.
U.S. Environmental Protection Agency —
Water stable isotope data collected from a range of streams throughout the Marys River basin in water year 2015, and precipitation data collected within the basin at... -
Federal
Stable Isotope Data from Diets and Tissues of Captive Bears Fed Experimental Diets
Department of the Interior —
This dataset contains stable isotope incorporation and discrimination results for several sets of feeding experiments with captive brown and polar bears. Experiments... -
Federal
Water Stable Isotope data from the Willamette Basin, Oregon
U.S. Environmental Protection Agency —
Water stable isotope ratios (2H and 18O) from the Willamette River Basin in Oregon, USA. Isotope values in the Willamette River are from both Portland and Corvallis... -
Federal
Supplemental information for: Three centuries of biogeochemical change in a temperate embayment as revealed by sediment cores stable isotopes and historical ecology
U.S. Environmental Protection Agency —
This repository contains data for the manuscript “Three centuries of biogeochemical change in a temperate embayment as revealed by sediment cores stable isotopes and... -
Federal
Stoichiometry of excreta and excretion rates of a stream-dwelling plethodontid salamander
U.S. Environmental Protection Agency —
Stoichiometry of excreta and excretion rates of a stream-dwelling plethodontid salamander in Cincinnati, OH, USA. This dataset is associated with the following...
80 datasets found