Data

This dataset provides the locations of putative polar bears that were visually detected within very high-resolution optical satellite imagery on the Beaufort Sea coast of Alaska. Results are provided as geospatial polygons saved in the shapefile format. These data are based on visual interpretation of very high-resolution optical satellite imagery collected at sites on the Beaufort Sea...

This data release provides Alaska breeding landbirds population estimates from three hierarchical Bayesian population trend models, following the methods of Handel and Sauer (2017) and Amundson et al. (2014). The three models are: (1) ALMS only - uses point-count data from the Alaska Landbird Monitoring Survey (ALMS) off-road points counts in Bird Conservation Regions (BCR) 4...

This data package is comprised of one table with genetic data from Canada goose (Branta canadensis) and Cackling goose (Branta hutchinsii) sampled across their species range. Sample types include feather, blood quill, blood (whole), blood (buffer), and muscle. Data include sampling location and allele sizes of 9 microsatellite loci and mitochondrial control region haplotype information.

This data release provides the source data and results of a flood frequency analysis for a site in the Taiya River Basin, Alaska, that was conducted using USGS PeakFQ software (Siefken and others, 2024). Data are provided for one streamgage, 15056210, Taiya River near Skagway, Alaska, that had 32 years of annual peak-flow record. The data include streamgage information, PeakFQ input (TXT...

This data release contains tabular data pertaining to population surveys of shorebirds, predatory birds (i.e., raptors, cranes, and gulls), and other bird species (i.e., passerines) conducted across the Upper Cook Inlet region of Alaska during 1996 and 1998. The data package includes five tables: 1) characteristics of bird survey sites including environmental conditions and habitat...

This dataset is a collection of analytical data of potassium-argon (K/Ar) radiometric age analyses. K/Ar dating used conventional argon measurements by isotope dilution with mass spectrometry, and potassium was determined by flame photometry using a lithium metaborate fusion. The analyses were performed over a period of nearly 20 years, from the mid 1970's to 1994. Most of the argon

This dataset provides apatite U-Pb and fission-track data from modern river samples from 14 catchments draining the Yukon-Tanana Upland of east-central Alaska.

This dataset contains ice thickness interpretations made from a radar survey conducted on Gulkana Glacier as part of the USGS Benchmark Glacier Monitoring Program on April 19th and 20th, 2024. The dataset contains a CSV file with the complete set of radar interpretations from the Spring 2024 Gulkana field campaign. The data includes a total of 36,378 observations. Radar interpretations...

This dataset consists of one table containing whole-rock geochemistry data for 250 igneous and metamorphic rocks from the Darby Mountains area on the Seward Peninsula in western Alaska, collected in 2017. All materials were analyzed by ALS Global, between 2019 and 2020, by a range of different techniques; multiple unique entries for a given element relate to different analytical methods...

This dataset provides a detailed (1:100,000) digital map of fault and fold traces near Icy Bay, Alaska, USA based on features identified in the study of McCall et al. (2026), Haeussler et al. (2024), and Gulick et al. (2013). The fault traces in this dataset either revise the location and accuracy of known active faults or folds in the DGGS Quaternary Fault and Fold database (Koehler...

Post-wildfire flooding and debris flows pose a threat to ecosystems and infrastructure. As the frequency and size of severe wildfires increase, there is a growing need for predictive debris flow hazard modeling in unburned but fire-prone landscapes. However, no crosswalks have been established between physics-based models of fire behavior and the remotely sensed burn severity inputs...

Crystalline graphite is an essential material in components, such as lithium-ion battery anodes. The forecasted demand for graphite for 2040 is predicted to increase by an order of magnitude. To inform decision-makers on viable locations for graphite, the U.S. Geological Survey is conducting a critical mineral resource assessment for graphite, that includes a compilation of modern...