Data

A modified marine radar was deployed on the National Oceanic and Atmospheric Administration research vessel, Gordon Gunter, during the fall of 2023 and 2024 as it transected the Gulf of America conducting benthic surveys. The radar collected data on avifauna (and flying animals generally) within a couple kilometers of the vessel during a portion of the fall migration. Data collected can...

An eDNA-based sampling approach used by the U.S. Fish and Wildlife Service for bigheaded carp Hypophthalmichthys spp. in the upper Mississippi River and Great Lakes Basins that collects hundreds of water samples per event. The U.S. Fish and Wildlife Service detected a single positive sample for bighead carp _H. nobilis_ during the spring 2021 sampling event in the Kinnickinnic River...

This data release consists of geotagged oblique aerial photographs taken by U.S. Geological Survey (USGS) scientists to support landslide situational awareness following Hurricane Helene under mission assignment from the Federal Emergency Management Agency (FEMA). The data release is accompanied by a photo viewer map where select photos can be viewed interactively. The photographs were...

A series of blank samples were analyzed as part of a study to evaluate alternative coatings for USGS water-quality samplers. The open-file report to be published in association with this data is titled "Evaluation of Alternative Coatings for U.S. Geological Survey Water-Quality Samplers" (Thornton, 2025) and includes further details of the study. The five coating options evaluated were...

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed were calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2023. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted...

Prey survival rates relative to season, habitat and species of predator from eighteen two-week experiments, from April-October in 2015 and 2016, that were conducted in experimental ponds with differing habitats of artificial structure, vegetation, or no habitat combinations.

Watershed pairing is an approach used to assess effects of restoration on a landscape by comparing conditions across a treatment watershed and a control watershed, and then quantifying the differences. When the watersheds are statistically paired, the control watershed can serve as a baseline of conditions compared to the treatment watershed. We apply a watershed pairing analysis across...

In cooperation with the U.S. Army Corps of Engineers (USACE), the U.S. Geological Survey (USGS) deployed ground control points and coordinated aerial photograph acquisition of Fern Ridge Lake, a multi-purpose reservoir in western Oregon impounded by the 13-m tall Fern Ridge Dam. Aerial photographs were acquired by the Civil Air Patrol (CAP) during winter 2023 when water levels were at or...

Sea-level fluctuations due to the growth and decay of continental ice sheets of the Quaternary exert a strong influence on geologic processes along coastlines. The California Channel Islands are no exception to this, and many studies have been conducted that focus on the extremes of these glacial-interglacial cycles, such as the last glacial period (marine isotope stage [MIS] 2) and the...

Cobalt, designated a critical mineral by the European Union and the United States, is a crucial component of the lithium-ion batteries found in cell phones, electric vehicles, and personal computing devices. Over half of the world’s cobalt supply is produced in the Democratic Republic of the Congo (DRC), where cobalt is mined in both large-scale and artisanal or small-scale operations...

The U.S. Geological Survey collected a grid of microtremor data points using Smartsolo 3-component seismic sensors from August 7th to August 11th, 2023. These sensors have a five Hz resonance frequency. The grid was deployed over a section of the Utsalady Point fault that runs east-west across the southern portion of the Naval Air Station Whidbey Island, Washington State. For four days...

This study applied historical aerial imagery and satellite imagery to create digital surface models (DSMs) of the Helmand River Valley situated in southwestern Afghanistan. The historical imagery, collected in 1952 by Fairchild Aerial Surveys Incorporated (FAS), at 1:40,000 scale, represents the earliest known aerial photographic archive of the Helmand Valley landscape. Structure-from...