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    • ABoVE: Active Layer Soil Characteristics at Selected Sites Across Alaska

    Metadata Updated: February 7, 2024

    This dataset provides soil active layer characteristics from nine locations across Alaska. Soil samples were collected in 2016 except for one site which was sampled in 2018. Soil cores were collected from each site using a steel barrel and plastic sample tube attached to a hand drill. At the majority of sites, samples were taken from each end of three 30-m transects (i.e. samples collected at the 0 m and 30 m location of each transect). The entire thawed horizon (active layer) was sampled where possible, and the length of cores varies among sites. Cores were kept frozen until analysis in the lab. Samples were sectioned by horizon (organic and mineral), and the organic horizon was split into subsections so that no section was longer than approximately 10 cm. Coarse roots were removed, dried and weighed. Soils were measured for gravimetric water content, percent soil organic matter (SOM), pH, and bulk density. Locations were selected to investigate fire disturbance, to span the range of permafrost regions from continuous to sporadic, and to cover vegetation types from boreal forests, tussock tundra, upland willow/herbaceous scrub, and lowland fen and wet tundra sites across Alaska. The data are provided in comma-separated values (CSV) format.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date February 7, 2024
    Metadata Updated Date February 7, 2024

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Site location map. More than one site may be indicated with a marker due to close proximity of some sites.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date February 7, 2024
    Metadata Updated Date February 7, 2024
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2849255421-ORNL_CLOUD
    Data First Published 2024-01-30
    Language en-US
    Data Last Modified 2024-02-01
    Category ABoVE, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.nasa.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Citation Ludwig, S., C. Minions, S. Natali, and J.D. Watts. 2023. ABoVE: Active Layer Soil Characteristics at Selected Sites Across Alaska. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2315
    Graphic Preview Description Site location map. More than one site may be indicated with a marker due to close proximity of some sites.
    Graphic Preview File https://daac.ornl.gov/ABOVE/guides/Soil_ActiveLayer_Properties_AK_Fig1.jpg
    Harvest Object Id 9b4fb9e4-d1e8-4ea6-aaa7-94e3f7ea9bf7
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/2315
    Metadata Type geospatial
    Old Spatial -149.53 63.88 -146.56 68.56
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 9732f06098a96ac226840636d60748f297aab0f38a8d8734d21bd881f71147b0
    Source Schema Version 1.1
    Spatial
    Temporal 2016-08-09T00:00:00Z/2018-07-07T23:59:59Z

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