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    • ABoVE: Upscaled Active Layer Thickness in Northern Alaska, 2014-2017

    Metadata Updated: June 8, 2024

    The dataset consists of maps of estimated Active Layer Thickness (ALT) at 30-m resolution throughout the northern half of Alaska for the years 2014, 2015, and 2017. The maps were generated by using a machine learning-based regression and a set of spatial data layers to upscale ALT from narrow swaths of ALT that were retrieved from airborne high-resolution P-band Polarimetric Synthetic Aperture Radar (PolSAR) imagery. The data are provided in cloud-optimized GeoTIFF 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 June 8, 2024
    Metadata Updated Date June 8, 2024

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Maps of active layer thickness (ALT) for northern Alaska in 2014, 2015, and 2017 estimated from P-band PolSAR imagery analyzed using a random forests (RF) machine learning regression algorithm.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 8, 2024
    Metadata Updated Date June 8, 2024
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2953829614-ORNL_CLOUD
    Data First Published 2024-04-24
    Language en-US
    Data Last Modified 2024-04-26
    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 Whitcomb, J., R.H. Chen, D. Clewley, J. Kimball, N.J. Pastick, Y. Yi, and M. Moghaddam. 2024. ABoVE: Upscaled Active Layer Thickness in Northern Alaska, 2014-2017. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2332
    Graphic Preview Description Maps of active layer thickness (ALT) for northern Alaska in 2014, 2015, and 2017 estimated from P-band PolSAR imagery analyzed using a random forests (RF) machine learning regression algorithm.
    Graphic Preview File https://daac.ornl.gov/ABOVE/guides/ALT_Maps_AK_CA_Fig1.jpg
    Harvest Object Id b4bd12ac-a41f-44be-906b-c2b35460457f
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/2332
    Metadata Type geospatial
    Old Spatial -171.8 59.35 -133.05 74.72
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 8b1a8c049b452814bb5b7bb407514a9178f2a3e14586b51498e960e149c911a9
    Source Schema Version 1.1
    Spatial
    Temporal 2014-01-01T00:00:00Z/2017-12-31T23:59:59Z

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