Data

These data describe an exercise in which known age and sex class of 100 Barrow's goldeneyes (Bucephala islandica), determined by expert examination bursa and plumage, was contrasted with age and sex classes estimated from photos by trained observers.

In 2016, with National Park Service support, several previously undated plutons were sampled in Glacier Bay National Park and Preserve along the west side of Glacier Bay for age determinations. Geochronologic analyses were conducted to determine the ages of the plutonic rocks in the Glacier Bay area. Five samples were collected by Frederic Wilson (USGS Alaska Science Center), from Dundas...

This dataset provides low-temperature thermochronometric data from 16 rock samples collected from the Revelation Mountains area in western Alaska Range. These data are from three different analyses used to estimate cooling ages: 1) apatite (U-Th)/He, 2) zircon (U-Th)/He, and 3) apatite fission-track.

This data set contains 3 tables containing uranium-lead (U-Pb) isotopic data and crystallization ages of zircon and titanite from igneous, metamorphic, and sedimentary rocks collected from the Yukon-Tanana upland of eastern interior Alaska between 2013 and 2019. Bulk samples of igneous and metamorphic rocks were processed into concentrated mineral separates of zircon and (or) titanite in...

This data release includes 2 child items with tracking data for Thick-billed Murres, a seabird species found in the Arctic and regions of the North Pacific and North Atlantic oceans. Child Item 1: "Argos Satellite Tracking Data for Thick-billed Murres (Uria lomvia) - Processed Data" -- Quality-controlled data collected from Argos satellite transmitters. Child Item 2: "Argos Satellite...

This data release includes 2 child items with tracking data for Common Murres, a seabird species that is found in regions of the North Pacific and Atlantic oceans, often in dense breeding colonies on cliffs and in large flocks on the water. Child Item 1: "Argos Satellite Tracking Data for Common Murres (Uria aalge) - Processed Data" -- Quality-controlled data collected from Argos...

This data release includes 2 child items with tracking data for Red-faced Cormorants, a seabird species that is found only in the North Pacific Ocean, breeding and wintering from southern Alaska and throughout the Aleutian Islands to Far Eastern Russia. Child Item 1: "Argos Satellite Tracking Data for Red-faced Cormorants (Phalacrocorax urile) - Processed Data" -- Quality-controlled data...

This data release includes 2 child items with tracking data for Pelagic Cormorants, a seabird species that breeds throughout the northern Pacific Ocean and spends the winter in East Asia and throughout coastal portions of western North America. Child Item 1: "Argos Satellite Tracking Data for Pelagic Cormorants (Phalacrocorax pelagicus) - Processed Data" -- Quality-controlled data...

The USGS mapped geomorphic features in the lower 7.5 kilometers of the Taiya River valley bottom in and near Klondike Gold Rush National Historical Park near Skagway, Alaska. This dataset presents delineations of off-main-stem channels and geomorphic surfaces. Boundaries were prepared from 2003 lidar elevation data and updated using 2017 and 2018 aerial orthophotographs at eroding...

This dataset includes soil data collected from various landscapes adjacent to thaw ponds on the North Slope of Alaska between 2012 and 2018. The landscapes include ice-rich polygonal ground found on basin uplands, as well as bluffs and lake edges. At each site a visual description of soil type and texture was performed, and a permafrost probe was used to determine a 'depth to refusal'...

This dataset includes physical, hydraulic, and thermal properties of soils collected in two sub-watersheds in the Noatak River Basin in northwestern Alaska. Physical properties include dry bulk density and porosity. Hydraulic properties include field- and lab-based hydraulic conductivity, soil-water retention data, and parameters used in a common soil-water retention model (van Genuchten...

This dataset includes 15-minute interval data on stream temperature, stage, and discharge from low-order streams in the Yukon River Basin in interior Alaska, collected during the summer months. The depth of the water and temperature were determined using a combined pressure transducer and temperature sensor that was deployed through the summer months. Different sensors were used in each...