Filters: Tags: Alaska (X) > partyWithName: U.S. Geological Survey (X)
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The NABat sampling frame is a grid-based finite-area frame spanning Canada, the United States, and Mexico consisting of N total number of 10- by 10-km (100-km2) grid cell sample units for the continental United States, Canada, and Alaska and 5- by 5-km (25km2) for Hawaii and Puerto Rico. This grain size is biologically appropriate given the scale of movement of most bat species, which routinely travel many kilometers each night between roosts and foraging areas and along foraging routes. A Generalized Random-Tessellation Stratified (GRTS) Survey Design draw was added to the sample units from the raw sampling grids (https://doi.org/10.5066/P9M00P17). This sampling design produces an ordered list of units such that...
Corescan© Hyperspectral Core Imager Mark III (HCI-III) system data were acquired for hand samples, and subsequent billets made from the hand samples, collected during the U.S. Geological Survey (USGS) 2014, 2015, and 2016 field seasons in the Nabesna area of the eastern Alaska Range. This area contains exposed porphyry deposits and hand samples were collected throughout the region in support of the HyMap imaging spectrometer survey (https://doi.org/10.5066/F7DN435W) (Kokaly and others, 2017a). The HCI-III system consists of three different components. The first is an imaging spectrometer which collects reflectance data with a spatial resolution of approximately 500 nanometers (nm) for 514 spectral channels covering...
This data release comprises a dataset that contains sample collection information and microsatellite genotypes, and another dataset that contains single nucleotide polymorphism (SNP) genotypes with sample collection information for populations of white-tailed ptarmigan across the species' range. There is also an additional file (accession numbers.xlsx) linking samples to accession numbers in Genbank. This data was collected in order to address the following: The delineation of intraspecific units that are evolutionarily and demographically distinct is an important step in the development of species-specific management plans. Neutral genetic variation has served as the primary data source for delineating units for...
This dataset includes discrete water quality data and sensor data from 2009-2017 for Beaver Creek above Victoria Creek and West Twin Creek in Alaska.
Categories: Data;
Tags: Alaska,
Alaska,
USGS Science Data Catalog (SDC),
dissolved inorganic carbon,
dissolved organic carbon,
This data release is part of a 2016-2019 study on the geology, geochemistry and geochronology of ore systems in the eastern Yukon-Tanana Upland region, Alaska. Whole rock chemistry was conducted on 185 samples, mostly from Au prospects, with lesser samples from porphyry Cu prospects. Geographically, most samples are from gold prospects near the Pogo Au mine and east to Black Mountain in the Big Delta quadrangle. Fewer samples are from prospects in the Eagle and Tanacross Quadrangles. Samples were submitted to the USGS contract laboratory and analyzed for select trace elements and gold. Sixty elements were determined by inductively coupled plasma-optical emission spectroscopy-mass spectroscopy (ICP-OES-MS), sodium...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Alaska,
Big Delta,
Black Mountain,
Eagle,
Economic Geology,
Surface-based 2D electrical resistivity tomography (ERT) surveys were used to investigate the distribution of permafrost at wetland sites on the alluvial plain north of the Tanana River, 20 km southwest of Fairbanks, Alaska, in June and September 2014. The sites contained habitat types characteristic of interior Alaska, including thermokarst bog, forested permafrost plateau, and a rich fen. These habitats range from treed to open and vary in groundcover vegetation and peat thickness. Individual surveys used a cable with 56 electrodes at 2-m spacing. At a fen site, ERT surveys were performed across a mixed spruce forest area across a vegetation gradient into an open fen area. At a bog site,surveys were performed...
Album caption: Same bluffs capped by silts (loes), from Lunch Aug. 7, from edge of bluffs, looing S. 20 de. E. Alaska. n.d. No index card available.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Photographers,
Schrader, F.C. Collection,
photo print
Album caption: Worthington Glacier, from trail, looking west. Alaska. 1900. Handwritten information on album caption: Copper River Region. Alaska. 1900. No index card available.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Photographers,
Schrader, F.C. Collection,
photo print
Album caption: View down E. of Anaktoovuk River, from stat, 19, looking S. 40 de. E. Alaska. n.d. No index card available.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Photographers,
Schrader, F.C. Collection,
photo print
Album caption: Base level beds and bedding, from Lunch Aug. 7, book III, p. 9, 21 G., looking S. 85 de. E. Alaska. n.d. No index card available.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Photographers,
Schrader, F.C. Collection,
photo print
Album caption: Moraine dammed lake 4 miles west of Camp 21, Kobuk Valley. Alaska. n.d. Handwritten information on album caption: Northern Alaska region. No index card available.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Photographers,
Smith, P.S. Collection,
photo print
Album caption: Mentasta Mountains from station 8. At 6,700 ft. Looking S. 1902. No index card available.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Photographers,
Schrader, F.C. Collection,
photo print
Album caption: Ebner Mine and Power House rom West. 8/17/1903. Handwritten notes on album caption: Alaska.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Brooks, A.H. Collection,
Ebner Mine,
Mills, Mines, Quarries,
Photographers,
Album caption: View down Koyukuk River, with Steamer Kyle in distance. From Native village, below Camp 56, 195 miles above mouth of Koyukuk. Looking south. No index card.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Photographers,
Schrader, F.C. Collection,
photo print
Album caption: Batzikakat Mtns., from Native camp 275 miles above mouth of Koyukuk River. Looking N. 10 deg. west. No index card.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Photographers,
Schrader, F.C. Collection,
photo print
Album caption and index card: Faulting in limestone and schist. from east, across Diedrick River Valley. Goodnews district, Kuskokwim region, Alaska. n.d.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Photographers,
Schrader, F.C. Collection,
photo print
Album caption: Looking SE across Utokok Valley. Notes: Panorama--35, 36, and 37.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Foran, W.T.,
Photographers,
panoramic,
photo print
Album caption: (See No. 1276) Middle Devonian limestone in bluff on right bank Yukon River, opposite Woodchopper.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Mertie, J.B., Jr. Collection,
Photographers,
photo print
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