Data

These data were compiled in support of the Post-2026 Operational Guidelines and Strategies for Lake Powell and Lake Mead (Post 2026) Environmental Impact Statement (EIS). These data were used to illustrate how six operational strategies (one baseline and 5 alternatives) for Glen Canyon Dam could affect sand exposure for aeolian landscape and cultural site resources within Grand Canyon...

This data release compiles multi-year temperature datasets from the Santa Ana River, including continuous temperature records collected by USGS, San Bernardino Valley Municipal Water District, and Riverside-Corona Resource Conservation District to support analyses of spatial and temporal thermal conditions.

The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from various historical sources, such as aerial photographs or topographic surveys, and contemporary sources, such as lidar-point clouds and digital elevation models. Shorelines are compiled in a GIS and analyzed in the USGS Digital Shoreline Analysis System (DSAS) software to calculate rates of...

This data release contains optical measurements for surface water samples collected during synoptic raft trips during three different sampling events. Data collection was performed by the University of Colorado at Boulder, Colorado (CO), and the U.S. Geological Survey (USGS) in Lakewood, CO. The raft was steered in the center of the river thalweg, generally between Kremmling, Colorado...

This data set was collected as part of structured decision-making workshops designed to build Bayesian Decision Networks of habitat management actions in wetlands of the Atlantic Coast Joint Venture region. The models were created as part of an adaptive management framework to reduce uncertainty about management actions. We used formal elicitation process for expert judgment where...

A campaign microgravity network was established at Yellowstone Caldera, Wyoming, in 2017 as a subset of stations that were initially measured in 1977. The network has been measured subsequently on a quasi-annual basis to assess changes in gravity over time that may be related to subsurface magmatic or hydrothermal processes. This data release includes microgravity data collected by the U...

Data from a laboratory study undertaken at the U.S. Geological Survey to investigate solid/water partitioning of per- and polyfluoroalkyl substances (PFAS) in New Hampshire soils and biosolids are presented here. Soils and biosolids used for the experiments were collected using PFAS-free sampling equipment, air dried, gently homogenized, and sieved (soils only). Soil samples were...

Anthropogenic background concentrations of per- and polyfluoroalkyl substances (PFAS) in shallow soils (zero to six inches in depth) across Maine, New Hampshire, and Vermont are compiled in this data release, together with a summary table of soil PFAS method detection limits. New Hampshire samples were collected in 2021 (Santangelo and others, 2022), Vermont samples were collected in...

Between June 2024 and December 2024, tapwater samples were collected from 48 homes that use private well water as their drinking water source. All homes were located within a 50-kilometer radius of the 3M Cordova Facility in Cordova, Illinois, and analyzed for per- and polyfluoroalkyl substances (PFAS). The sampling effort was undertaken by the University of Iowa and samples were sent to...

In cooperation with the Idaho Department of Water Resources (IDWR), the U.S. Geological Survey, (USGS), collected surface nuclear magnetic resonance (sNMR) and time-domain electromagnetic (TDEM) surveys at eight sites located in the Camas Prairie, Idaho between July 30 and August 2, 2024. The data were acquired to characterize the subsurface and define hydraulic properties of the shallow

This data release documents performance testing of an experimental suspended‑sediment and water‑quality collapsible‑bag sampler with point‑ or depth‑integrating capabilities, the US XPD‑24‑200. Water samples were collected at known velocities in a controlled tow‑tank environment and during lake tows using multiple sampler‑nozzle sizes. For each test, tow velocity, sample volume, and...

This data release contains sample information for a project using genotyping-in-thousands by sequencing (GT-seq) to identify to species early life coregonine fishes that were collected by the U.S. Geological Survey from Lake Superior in 2019-2021. Sample data are provided for both the larval and age-1 coregonines that underwent genetic identification and the reference fishes collected...