57 datasets found
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Federal
Stable isotopes reveal an imprint of harmful algal blooms on Lake Erie
U.S. Environmental Protection Agency —
Supplemental material for "Stable isotopes reveal an imprint of harmful algal blooms on Lake Erie". This dataset is associated with the following publication: Benesh,... -
Federal
Assessment of nutrients and water-quality constituents at the Sacramento-San Joaquin River Confluence during a phytoplankton bloom in July 2017
Department of the Interior —
This report documents the spatial and temporal variability of nutrients and related water quality parameters at high spatial resolution in the North Delta in the... -
Federal
Shallow Sediment Geochemical Data for the Cache Creek Settling Basin, Yolo County, California
Department of the Interior —
This dataset includes shallow surface sediment (top 0–2 cm interval) constituent concentration data (primarily) and microbial methylmercury production potential rate... -
Federal
Assessing spatial variability of nutrients and related water quality constituents in the California Sacramento-San Joaquin Delta at the landscape scale: 2018 High resolution mapping surveys (ver. 2.0, October 2023)
Department of the Interior —
The dataset documents the spatial and temporal variability of nutrients and related water quality parameters at high spatial resolution in the North Delta, Central... -
Federal
SGS-LTER Ecosystem Stress Area - Soil Carbon & Nitrogen in shortgrass steppe on the Central Plains Experimental Range in Nunn, Colorado, USA 1991, ARS Study Number 3
Department of Agriculture —
This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State... -
Federal
Paleoecological data from sediment collected in 2020 from Santa Fe Lake, New Mexico
Department of the Interior —
This dataset contains carbon and nitrogen stable isotope values, percent carbon and percent nitrogen, algal pigment data, and diatom taxonomy from lake sediment... -
Federal
SGS-LTER Cross-Site Study: Natural Abundance N15 Study - Plants and Soils on the shortgrass steppes of Colorado, USA and Patagonia, Argentina
Department of Agriculture —
This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State... -
Federal
Cottonwood Lake Study Area - Water Chemistry - Wells
Department of the Interior —
This dataset contains water chemistry measurements for groundwater wells in the Cottonwood Lake Study Area, Stutsman County, North Dakota. -
Federal
Assessing spatial variability of nutrients, phytoplankton and related water-quality constituents in the California Sacramento-San Joaquin Delta at the landscape scale: 2020-2021 High-resolution mapping surveys
Department of the Interior —
The dataset documents the spatial and temporal variability of nutrients, phytoplankton, and related water quality parameters at high spatial resolution in the... -
Federal
Shallow Sediment Geochemistry in a Mercury-Contaminated Multi-Habitat Floodplain: Cache Creek Settling Basin, Yolo County, California, 2010–17
Department of the Interior —
The Cache Creek Settling Basin (CCSB) is a 13.3 km2 leveed basin located at the terminal drainage of the Cache Creek watershed, immediately NE of the town of Woodland... -
Federal
Cottonwood Lake Study Area - Water Chemistry - Wells - In Situ Measurements
Department of the Interior —
This dataset contains in situ specific conductance, pH, and temperature measurements from groundwater wells in the Cottonwood Lake Study Area, Stutsman County, North... -
Federal
Global Aggregation of Stream Silica (GlASS) (ver. 2.0, July 2025)
Department of the Interior —
Riverine silicon (Si) plays a vital role in governing primary production, water quality, and carbon sequestration. The Global Aggregation of Stream Silica (GlASS)... -
Federal
Data on denitrification and ecological characteristics of nontidal floodplains, Chesapeake Bay watershed, USA, 2013-2016
Department of the Interior —
This data set presents attributes of floodplain ecosystem characteristics including floodplain soil denitrification, floodplain soil biogeochemistry, floodplain... -
Federal
Plant composition, shrub biomass, and soil biogeochemistry from an experimental drought treatment on the Colorado Plateau
Department of the Interior —
These data were compiled for a study that investigated the effects of drought seasonality and plant community composition in a dryland ecosystem. In 2015 U.S.... -
Federal
Habitat Maps for the Cache Creek Settling Basin, Yolo County, California
Department of the Interior —
The geospatial data presented here as ArcGIS layers denote landcover/landuse classifications to support field sampling efforts that occurred within the Cache Creek... -
Federal
Assessing spatial variability of nutrients, phytoplankton, and related water quality constituents in the California Sacramento-San Joaquin Delta during treated wastewater effluent holds: August and September 2019 high resolution mapping surveys
Department of the Interior —
The study is comprised of daily survey data consisting of high resolution mapping and discrete sample collection of nutrients, phytoplankton, and related water... -
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
Biogeochemical Data for Mercury and other Constituents in Surface Sediment and Deep Cores from the Hells Canyon Reservoir Complex, Idaho and Oregon 2014-2018
Department of the Interior —
The Hells Canyon Complex (HCC) is comprised of a series of three consecutive reservoirs (Brownlee, Oxbow, and Hells Canyon) along a 145 km reach of the Snake River... -
Federal
Forshay et al. 2022 Biogeochemistry https://doi.org/10.23719/1520759
U.S. Environmental Protection Agency —
Soil properties, processing rates, and water chemistry data. This dataset is associated with the following publication: Forshay, K., J. Weitzman, J. Wilhelm, J.... -
Federal
Assessment of nutrients and water-quality constituents in the North Delta during Yolo Bypass flooding events in March 2017
Department of the Interior —
The data release contains data for the spatial and temporal variability of nutrients and related water quality parameters at high spatial resolution in the North...
57 datasets found