Data

This data release provides a variety of water quality benchmarks, compiled from multiple publications and attributed to the NHDPlus v2.1 hydrography, for the conterminous United States (CONUS) for use in integrated water availability studies for evaluating altered water conditions and potential ecological impacts. To avoid ambiguity in terms, for the purpose of this data release, we use...

This data release includes information on data from 72 streamflow or surface-water presence datasets in the Conterminous United States. It includes location, dataset, parent dataset or publication, site identification (if available), start year, end year, number of years, number of days, frequency of data collection, Strahler stream order, and headwater status.

This data release contains supporting input data tables and results from analysis to identify and interpret clusters of drought events with similar meteorological and hydrological characteristics in the Delaware River Basin. Input data consists of hydrologic variables from the National Hydrologic Model Infrastructure with Precipitation-Runoff Modeling System, version 1.1 (NHM-PRMS v1.1)

Mainstem rivers serve as the backbone of a connected network of hydrologic units that cover the landscape. A mainstem connects a headwater source area to an outlet. The series of data releases, Mainstem Rivers of the Conterminous United States, referred to as "Mainstems", identifies the same mainstem paths across spatial scales in hydrographic datasets for the United States. This data...

This dataset contains the Mann-Kendall p value, Theil - Sen slope estimate, summary statistics for eleven modelled water budget components simulated by the National Hydrologic Model Precipitation-Runoff Modeling System (NHM-PRMS) (Markstrom and others, 2024). The trend analyses are created from aggregated outputs from three separate models, each of which was forced with Daymet Version 4...

This data release provides integrated datasets for modeling streamflow and water presence across the HJ Andrews Experimental Forest stream network in western Oregon. The data include daily meteorological drivers from GRIDMET (precipitation, temperature, humidity, radiation, wind speed, evapotranspiration, vapor pressure deficit), observations of stream discharge and wet/dry status from...

These data are from the reclaimed uranium mine site Kanab North near Grand Canyon National Park in Arizona. We collected data and soil samples within a highly disturbed mine reclamation area and a nearby undisturbed area for comparison. The data set includes measurements of field saturated hydraulic conductivity (Kfs), particle size distributions, lab-measured soil-water content and bulk...

This data release presents chemical and biological results from an investigation of the fish uptake and effects from exposure to per- and polyfluoroalkyl substances (PFAS) from groundwater contaminated by fire training activities on Cape Cod, Massachusetts. Twenty-one day exposure experiments were conducted from July to August 2019 and from August to September 2021 using groundwater from...

This dataset contains the Mann-Kendall p value, Theil - Sen slope estimate, summary statistics for eleven modelled water budget components simulated by the following modeling applications: the National Hydrologic Model Precipitation-Runoff Modeling System (NHM-PRMS) version 1.1 (Markstrom and others, 2024), the Weather Research and Forecasting hydrological modeling application (WRF-Hydro

This data release documents seismic data collected immediately adjacent to beaver ponds and in their surrounding floodplain environments using active and passive seismic measurements at three sites. These sites are located in the University of Connecticut (UConn) Forest in Storrs, Connecticut; Fenton-Ruby Park in Willington, Connecticut; and in Gunnison County, Colorado. Horizontal-to...

This data release includes digital orthophotos acquired from a fixed-wing aircraft and field measurements of flow velocity and depth from the Tanana and Yukon Rivers, Alaska, obtained July 1 - 3, 2025. This parent data release includes links to child pages for the data sets produced during the study (see child item links below): 1. Digital orthophotos of the Tanana and Yukon Rivers in...

This metadata record describes historical flood type classifications and causal attribution data for the FEMA-funded joint U.S. Geological Survey and U.S. Army Corps of Engineers Mixed Populations Flood Frequency Project. The data listed here include classifications of historical flood peaks based on causal mechanisms determined using manual and semi-automated methods at select locations...