All Data

This metadata record documents one comma delimited table that contains information on the grain size distribution, fallout radionuclide activity, and geochemical characteristics of urban sediments within the Hickey Run watershed in Washington, D.C. Measurements include radiological activity, sediment particle size information, and elemental composition of source and target sediments.

Burmese pythons are an invasive species in the Greater Everglades Ecosystem. Burmese pythons captured in the ecosystem are euthanized, and in an effort to learn about this invasive species, all euthanized pythons are necropsied, during which time samples are collected. We analyzed the stable isotope ratios of carbon and nitrogen in muscle samples from 423 Burmese pythons euthanized and...

Location and elevation data were collected along with peat auger cores during six U.S. Geological Survey (USGS) field activities from 2013-2018 in and around Grand Bay, Mississippi (MS) and Alabama (AL) and used by Smith and others (2024). Peat auger cores were described, photographed, and the thickness of the peat unit was measured with a measuring tape. Following collection, the...

Major, minor, and trace element data, as well as backscattered electron images, were collected for clinopyroxene crystals in alkaline silicate rocks (phonolite, tephriphonolite, latite, phonotephrite, and pyroxenite) of the Bear Lodge and Mineral Hill alkaline complexes, Wyoming. Samples of alkaline rocks thought to represent early and later stages of magmatism, based on observed...

Sixty samples of Paleoproterozoic Virginia Formation of the Animikie Group black shales were collected from two public drill cores (VHD-00-1; LWD-99-2) housed at the Minnesota Department of Natural Resources Drill Core Library in Hibbing, MN. The black shale samples were ground to a powder and subjected to several analyses. Trace elements were determined using multi-acid digestion and...

In 2021, a collaborative scientific investigation (National Science Foundation Grant Award OCE-2148989, Project 880516) was started for the purpose of quantifying shelf inventories and boundary fluxes of dissolved organic nitrogen and dissolved iron to the West Florida Shelf (WFS) to assess their role in supporting the oligotrophic WFS ecosystem. To assess the spatial and temporal...

The data consist of counts of sea otters in each year from 1980 to 2017 that are within 2 kilometers of the location of the 6 original subtidal ecosystem monitoring sites around San Nicolas Island, California. Beginning with the reintroduction of sea otter to the waters of San Nicolas Island in 1987, three to four surveys have been conducted at the island each year. Shore-based observers...

Decision support tools play a critical role in assisting coastal decision-makers in managing coastal systems; yet there are challenges to developing tools that align with the functional needs of end-users. By combining usability testing and contextual inquiry methods, we put forth a hybrid approach for collecting user feedback within the context of federal government research. This...

The Dinwiddie terrane, formerly the Petersburg Granite (sensu lato), was originally interpreted as a Pennsylvanian - Permian igneous complex located in the eastern Piedmont of Virginia and considered to be a single batholith that comprises different textural varieties, likely assumed to have been emplaced from a single source during Alleghanian metamorphism (Bloomer 1939; Bobyarchick...

Malheur Lake in southeastern Oregon is a shallow, freshwater lake that provides valuable habitat for birds along the Pacific Flyway. The lake was in a turbid state for multiple decades, and past studies documented high suspended-sediment concentrations, high nutrient concentrations, and low light infiltration through the water column. Experimental restoration trials were conducted in...

1. Abstract Landslides are damaging and deadly, and they occur in every U.S. state. However, our current ability to understand landslide hazards at the national scale is limited, in part because spatial data on landslide occurrence across the U.S. varies greatly in quality, accessibility, and extent. Landslide inventories are typically collected and maintained by different agencies and

Scientists and engineers from the U.S. Geological Survey (USGS) Earth Resources Observation and Science Center (EROS) Cal/Val Center of Excellence (ECCOE) collected in situ measurements using field spectrometers to support the validation of surface reflectance products derived from Earth observing remote sensing imagery. Data provided in this data release were collected during select...