Data

A dynamic closed chamber system was used to measure in situ efflux rates of CO2, CH4, and N2O to the atmosphere from wetland soils along the Mattaponi and Pamunkey rivers. These greenhouse gas (GHG) flux measurements were taken quarterly from December 2015 to September 2017, at replicated hummock and hollow microtopography locations (where present) within each site. CO2 flux was measured...

Ground Penetrating Radar (GPR) surveys were conducted at Kilbourne Hole within the Potrillo Volcanic Field in southern New Mexico, USA in November of 2021 and April of 2023. These surveys collected GPR data using variable antenna frequencies and survey methodologies around this volcanic feature. The main focus of this data collection was on the layering and stratigraphy of the volcanic...

Ground Penetrating Radar (GPR) surveys were conducted in and around the Lava Beds National Monument in northern CA during two field expeditions, in June of 2022 and May of 2024. These surveys collected GPR data using various antenna frequencies and multiple survey styles in varied geologic terrains. Types of terrain surveyed include inside of- and over lava tubes, on volcanic deposits...

Ground Penetrating Radar (GPR) surveys were conducted within the San Francisco Volcanic Field (SFVF) in Northern Arizona from October 8th-15th in 2016 and August 4th-8th in 2023. These surveys collected GPR data using variable antenna frequencies and survey styles in varied geologic terrains. The main focus of this data collection was on volcanic terrains in the SFVF, including lava...

Thermistor strings with sensors spaced at 25-centimeter intervals were installed in three boreholes extending from the ground surface to depths of up to 4.25 meters at Barter Island, Alaska. The sites were located near the bluff edge overlooking the open Beaufort Sea coast. Temperature measurements were programmed to be collected hourly from late spring through early fall in 2016 (May 31...

A ground-based magnetic survey was conducted in the southwest corner of Yakima Training Center, Washington, in 2025. Magnetic surveys are passive, non-contact, surface geophysical methods that measure the total ambient magnetic field. The magnetic survey utilized a Geometrics G-864 cesium magnetometer. Survey lines were carried out to better understand the subsurface along a prominent...

During December 2023, the U.S. Geological Survey collected ground-penetrating radar (GPR) data in select small peat bogs near the Quashnet River to map the depth to bedrock for use as inputs to a groundwater flow model. This data release contains the raw GPR data from 22 GPR profiles covering more than 1.8 kilometers.

In September 2025, the U.S. Geological Survey, in cooperation with Idaho Power Company, conducted a pilot geophysical survey along the Snake River between the Boise River confluence and Swan Falls Dam in southwestern Idaho. The purpose of the survey was to evaluate the utility of ground-penetrating radar (GPR) for mapping the spatial distribution and thickness of gravel deposits within...

This data release documents estimates of groundwater recharge for the U.S. portion of the Salish Sea Basin in northwestern Washington. A U.S. Geological Survey Soil-Water-Balance (SWB) model (Westenbroek and others,2018) was developed for Hydrologic Unit Code 17110 to simulate the spatial distribution of net infiltration below the root zone on a daily time step from January 1, 1980...

Aspen stands (Populus tremuloides Michx.) are declining in western U.S. forests due to drought, changing climate, and altered disturbance regimes. Management of aspen has focused on promoting vegetative suckering, which requires viable rootstock. With increasing wildfire frequency and severity in the West, there are opportunities for aspen reforestation post-fire. We tested how deadwood...

Cisco and Bloater growth data from hatchery reared fish were collected in association with a project to repopulate Lake Ontario native prey species. Fish were grown and measured under hatchery conditions for up to nine months before being released into Lake Ontario. Weekly measurements of total length, total weight, and morphometrics were recorded for both species to determine growth...

This data release and metadata contains radio telemetry signal data used to track and describe movement and activity of Brown Treesnakes (Boiga irregularis) and Micronesian Starlings (Aplonis opaca) on Andersen Air Force Base, Guam, 2021-2022. Using a node network radio telemetry tracking system, multiple nodes would make detections of animals and record signal strength that could be...