All Data

This data release includes water quality and zooplankton data collected concurrently with the Floating Wetland Experiment in the West Pond on Bouldin Island in the Sacramento-San Joaquin Delta. Data were collected to monitor water quality and zooplankton community composition before and after the installation of a floating tule wetland. The data were collected at a site near the floating...

Since 1975, annual water use for Louisiana has been published on a 5-year basis and is used for a variety of purposes. As the Sparta aquifer is a heavily used aquifer, is the sole source of groundwater for many parishes in Louisiana, and recent withdrawals have exceeded the Sparta’s natural recharge, a more frequent compilation of water usage for the Sparta aquifer in Louisiana is needed...

Since 2008, large-scale restoration programs have been implemented along the Willamette River, Oregon, to address historical losses of floodplain habitats for native fish. For much of the Willamette River floodplain, direct enhancement of floodplain habitats through restoration activities is needed because the underlying hydrologic, geomorphic, and vegetation processes that historically...

Ciénegas are freshwater to brackish wetlands in arid and semi-arid regions of North America, although they are primarily found in the southwestern U.S. and northwestern Mexico at elevations usually below 2000 meters. They are associated with groundwater or actively moving fresh water that historically resulted in perennial surface waters persisting for decades to centuries. The extent of...

This data release includes individual lengths, total dry mass, and taxonomic classification for a subset of adult aquatic insects captured emerging from the surface of wadeable wetlands in cropland and grassland landscapes across a salinity/hydrology gradient (N = 14 wetlands in 2015, N = 15 wetlands in 2016). Sampling was completed in late spring, after ice off was complete and during...

This dataset includes the one-dimensional HEC-RAS model calibration files and simulation input and output files for the Wallens Bend (WB) reach on the Clinch River near Kyles Ford, Tennessee. Simulation results were used as input for environmental DNA transport models.

The collection and analysis of fluvial sediment samples has been an integral part of hydrologic studies in the United States for over 125 years (Gordon and others, 2000). Accurate measurement of sediment concentrations and its movement in streams is critical to maintaining important infrastructure and habitats in the Nation’s waterways, such as impoundments and estuaries (Hudson and...

The U.S. Geological Survey conducted sampling across the United States between 2017 and 2022 to assess the effects of methylmercury bioaccumulation and amphibian chytrid fungus (Batrachochytrium dendrobatidis; Bd) on the survival of amphibian species. This dataset includes detections and non-detections of Bd (obtained from DNA extracted from skin swabs) and whole-body methylmercury...

This U.S. Geological Survey (USGS) data release presents U-Th-Pb concentrations, isotopic ratios, and geochronologic data collected by thermal ionization mass spectrometry (TIMS) for Proterozoic igneous and metamorphic rocks of the Mojave Province, California and Nevada, USA. Sample and data collection occurred by 1984 and 1990.

Post-fire vegetation structure and fuels data are essential for understanding the recovery process after major disturbances. To meet this need, 40 plots within and around the perimeter of the 2021 KNP Complex Fire were surveyed between July 12 and July 28, 2024. Data was collected on sites previously established by the U.S. Geological Survey Kings Canyon and Sequoia Field Station, as...

In cooperation with the West Virginia Division of Transportation, Department of Highways (WVDOH), precipitation and streamflow were measured at four streamgages in West Virginia to compute time of concentration (Tc) and compare it to Tc estimates made using accepted methods. Precipitation and streamflow data were collected during 2017-2020. Storms were identified and classified through...

Three different CMIP6-LOCA2 based climate projection data sets are spatially averaged for the contiguous United States using National Park Service administrative units to provide time series for analysis. The primary data set is the statistically downscaled CMIP6-LOCA2 (Localized Constructed Analogs, v20220519 version, Pierce et al. 2023), which includes temperature and precipitation...