Data

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 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 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...

This data release provides the source data and results of a flood frequency analysis for sites in the Mendenhall River Basin, Alaska, that was conducted using USGS PeakFQ software (Veilleux and others, 2014; Flynn and others, 2006). Data are provided for two streamgages that had at least 10 years of annual peak-flow record. The data include streamgage information, PeakFQ input (.txt and...

Adult female caribou from the Porcupine herd (PCH; 2018-2023) and Western Arctic herd (WAH; 2021, 2023) were fitted with GPS video collars (Vertex Plus, Vectronic Aerospace; 9 sec videos every 20-30 min) to assess parturition, neonate survival (birth through 30 June), and antler shedding. We used video data to validate antler- and movement-based methods for estimating reproduction in...

The U.S. Geological Survey (USGS) collects magnetic susceptibility measurements on in-situ and laboratory rock samples to help identify the sources of anomalies in aeromagnetic surveys in Alaska. Magnetic susceptibility is a measure of how much a material will become magnetized in an applied magnetic field and is the ratio of magnetization, M (magnetic moment per unit volume), to the...

This dataset includes field and laboratory analyses of water samples collected from lakes, ponds, rivers, and streams in northwest Alaska within Cape Krusenstern National Monument, Noatak National Preserve, Kobuk Valley National Park, Gates of the Arctic National Park and Preserve, and Bering Land Bridge National Preserve. At sites across the five national park units, in situ water...

Measurements of water temperature, tide height, and photosynthetic light (PAR: photosynthetic active radiation within the 400-700 nanometers wave band) are provided in four tables for monitoring the abundance and distribution of eelgrass in Izembek and Kinzarof lagoons of Izembek National Wildlife Refuge. These environmental parameters are crucial to the health of eelgrass ecosystems...

This dataset consists of one table containing whole-rock geochemistry data for 748 rocks from southcentral Alaska. All materials in the present study were analyzed by ALS Global between 2014 and 2022 using a range of different techniques, so multiple unique entries for a given element relate to different analytical methods or preparations, as detailed in accompanying metadata, and...