Data

In 2001, the Alaska Division of Geological & Geophysical Surveys (DGGS) published a database compiling geotechnical borehole and well-log records in Anchorage, Alaska (Combellick and others, 2001). This data release builds on that database, adding some additional cone penetration test (CPT) and well log records in broader areas across the state (Alaska Department of Natural Resources...

Wildfire is an increasingly important driver of changes within sagebrush (Artemisia spp.) ecosystems of the western United States, often resulting in increased spread of exotic annual grasses, such as cheatgrass (Bromus tectorum), and subsequent losses of native vegetation and wildlife habitat. Fuel breaks, areas of land treated to reduce or redistribute hazardous fuels, are widely...

The Louisiana State Legislature created the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed pursuant to these acts specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to...

Reported here are the geographic sampling information associated with the raw shotgun sequencing data of multiple families of Polychaeta samples collected from cold seep sites off the U.S. Atlantic margin as well as raw 18S amplicon sequencing data from sediment eDNA collected from Astoria Canyon seeps, located on the Cascadia margin, northeastern Pacific Ocean. Also included are GenBank...

The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...

For decades, researchers have recognized the functionality of using conodont elements in biostratigraphic investigations. A growing need now exists, however, for a digital dataset of fossil data. The New England conodont dataset is the region's first publicly accessible digital collection of previously published U.S. Geological Survey (USGS) conodont paleontological data and Color...

These data are a compilation of example index velocity ratings used at USGS streamgaging stations. Each directory contains seven comma-delimited files consisting of a read me, the hydrographer developed rating, a table of discharge measurements used to develop the velocity rating, a mixture model analysis, statistically recommended rating, and the variance covariance matrix for both the

This data release presents a national cross-section (XS) database (NXSDB) of bathymetric cross-sections collected during water year (WY) 2022 (October 1, 2021, to September 30, 2022). The WY 2022 NXSDB has been approved by the U.S. Geological Survey (USGS) for publication and supersedes the provisional versions. The data were collected by hydrographers during routine site visits to...

This data release presents a national cross-section (XS) database (NXSDB) of bathymetric cross-sections collected during water year (WY) 2023 (October 1, 2022, to September 30, 2023). The WY 2023 NXSDB has been approved by the U.S. Geological Survey (USGS) for publication and supersedes the provisional version. The data were collected by hydrographers during routine site visits to...

Understanding and projecting the downstream benefits of terrestrial surface water storage (volumetric water stored in lakes and wetlands, SWstorage) requires watershed hydrologic models. Use of external datasets to calibrate and validate modeled SWstorage dynamics remains uncommon, particularly across major river basins. Here, we: (1) developed and assessed the utility of a novel remote...

A multi-stage ensembled machine learning model was developed to estimate metal abundances in seafloor massive sulfide deposits worldwide. The modeling framework integrates (1) KMeans++ clustering to identify geochemical groupings based on enrichment controls, (2) Random Forest classification to assign geochemical labels to vent fields with incomplete or absent geochemical data, and (3)...

This U.S. Geological Survey data release consists of two comma-separated values (CSV) tables containing the results of organic content and radiocarbon dating analyses performed on soil samples collected from a fen in Big Smoky Valley, Nye County, Nevada. Samples were collected from a single soil boring referred to as F1-D on September 11, 2019, using a hand auger. A shapefile of the site...