All Data
Explore all data by the topics and refine type to find the digital information in a format suitable for direct input to software that can analyze its meaning in the scientific, engineering, or business context for which the data were collected.
Filter Total Items: 16532
Cropland Data Layer summaries for NHDPlus Version 2.1 Reach Catchments in the Conterminous United States, 2000-2022 Cropland Data Layer summaries for NHDPlus Version 2.1 Reach Catchments in the Conterminous United States, 2000-2022
This dataset contains summary tables of land cover from the Cropland Data Layer (CDL) for individual stream catchments of the conterminous United States from the National Hydrography Dataset Plus Version 2.1 (United States Department of Agriculture National Agricultural Statistics Service, 2024; McKay and others, 2012). These data were summarized from primarily 30 meter grid cell raster...
Capture records of Desmognathus salamanders in Shenandoah National Park, 2007-2013 Capture records of Desmognathus salamanders in Shenandoah National Park, 2007-2013
Mark-recapture records of salamanders in the genus Desmognathus within stream habitat at Shenandoah National Park, Virginia from 2007-2013
occupancy model of eDNA gradient in Illinois River occupancy model of eDNA gradient in Illinois River
This repository contains code to run an occupancy model for eDNA data from a gradient along the Illinois River collected in 2015.
Illinois River basin silver carp and bighead carp eDNA gradient study from 2015 Illinois River basin silver carp and bighead carp eDNA gradient study from 2015
This data was collected by the US Fish and Wildlife Service to see if environmental DNA (eDNA) varied across pools and within pools in the Illinois River basin. The data was collected in 2015 from three different habitat types: shoreline, main channel, and bays. The resulting data were then analyzed using an occupancy model.
Hyperspectral image transects and field measurements of reflectance, visible dye concentration, and flow velocity acquired during a tracer experiment on the Missouri River near Lexington, MO, on May 11, 2024 Hyperspectral image transects and field measurements of reflectance, visible dye concentration, and flow velocity acquired during a tracer experiment on the Missouri River near Lexington, MO, on May 11, 2024
This data release includes several types of remotely sensed data and field measurements acquired during a tracer experiment performed on the Missouri River near Lexington, Missouri, on May 11, 2024. One of the primary goals of this study was to assess the feasibility of inferring concentrations of a visible dye (Rhodamine WT) in a large, highly turbid natural river channel using data...
Missouri Stream Conservation and Connectivity Prioritization Tool: Improving and Expanding Existing Conservation Networks Missouri Stream Conservation and Connectivity Prioritization Tool: Improving and Expanding Existing Conservation Networks
The Missouri Stream Conservation and Connectivity Prioritization Tool contains data tabulating costs to traverse between 10,357 origin and 50,135 destination stream reaches throughout the Central Plains and Ozarks aquatic subregions in Missouri. Below are links to data associated with the more northern drainages and also the southern drainages. These data are intended to be used in the...
Results of generalized least-squares (GLS) regression for 136 USGS streamgages in urban areas in Tennessee and parts of Alabama, Georgia, Mississippi, North Carolina, and South Carolina (ver. 1.1, January 2026) Results of generalized least-squares (GLS) regression for 136 USGS streamgages in urban areas in Tennessee and parts of Alabama, Georgia, Mississippi, North Carolina, and South Carolina (ver. 1.1, January 2026)
This dataset contains results of generalized least-squares (GLS) regression for 136 streamflow gaging stations (streamgages) operated by the U.S. Geological Survey (USGS) on urban streams in Tennessee and parts of Alabama, Georgia, Mississippi, North Carolina, and South Carolina. GLS regression was used to relate drainage area, percentages of the drainage basins of the streamgages in...
University of Iowa/ NASA GIFT Expedition to Askja, Iceland MSc Data collection: 2019, Dyngjusandur Sandsheet In Situ and Photogrammetric Ventifact Measurements University of Iowa/ NASA GIFT Expedition to Askja, Iceland MSc Data collection: 2019, Dyngjusandur Sandsheet In Situ and Photogrammetric Ventifact Measurements
We use the Dyngjusandur sandsheet, Iceland as a testbed to quantify the type of data necessary to accurately represent ventifact orientations and extract paleowind information through a statistical evaluation of the differences between photogrammetric based and in situ geological analysis. Forty representative ventifacts were selected for in situ measurement, 20 of which were imaged for
Grand Calumet River Area of Concern Metabarcoding Data Grand Calumet River Area of Concern Metabarcoding Data
The Grand Calumet River flows through northwestern Indiana and was designated an EPA Area of Concern (AOC) in 1987. There are multiple legacy pollutants in the river including but not limited to heavy metals and PCBs. To investigate potential causes and patterns of eutrophication in the river, water samples were collected for 16S rRNA microbial and eukaryotic 18S rRNA amplicon sequencing...
Geochemical, grain size, lithological, diatom, bathymetric, and age model data for Wildcat Lake, Point Reyes National Seashore 2021 Geochemical, grain size, lithological, diatom, bathymetric, and age model data for Wildcat Lake, Point Reyes National Seashore 2021
These data are the geochemical (from X-ray fluorescence spectrometry), grain size, lithological (loss on ignition), diatom assemblages (taxa counts), bathymetric, and radioactive isotopes (210-Pb, 137Cs) from sediments from Wildcat Lake, Point Reyes National Seashore, California, USA starting in 2021. Taken together, they provide evidence for extreme precipitation events linked to...
Monthly point-source nutrient loads within the watersheds draining to Puget Sound and the Strait of Juan de Fuca, Washington, 2005 – 2020 Monthly point-source nutrient loads within the watersheds draining to Puget Sound and the Strait of Juan de Fuca, Washington, 2005 – 2020
This data release contains estimated monthly point-source nutrient loads for 97 municipal wastewater treatment plants, 20 industrial facilities, and 46 fish hatcheries and other aquaculture facilities that discharge within the watersheds draining to Puget Sound and the Strait of Juan de Fuca in Washington, or discharge directly to those water bodies. The data, which cover the years 2005...
Measures of adenosine triphosphate in sperm from common carp (Cyprinus carpio) in spring and fall 2010 from Lake Mead, Arizona and Nevada, USA Measures of adenosine triphosphate in sperm from common carp (Cyprinus carpio) in spring and fall 2010 from Lake Mead, Arizona and Nevada, USA
Data include values obtained from files that were generated in the analysis of ATP levels from sperm derived from Common Carp. Data were obtained with by using an ATP-binding luciferase assay, whereby standard curves were generated and experimental samples were analyzed per day of standard curve generation. The luminescence intensities were recorded in relative light units (RLUs) and ATP