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    • Disturbance History and Forest Biomass from Landsat for Six US Sites, 1985-2014

    Metadata Updated: December 7, 2023

    This dataset provides derived disturbance history and predicted annual forest biomass maps at 30-m resolution for six selected Landsat scenes across the Conterminous United States (CONUS) for the period 1985-2014. The focus sites are in the following states: Colorado, Maine, Minnesota, Oregon, Pennsylvania, and South Carolina. These scenes were selected to represent a wide range of forest ecosystems, which ensured that a diversity of forest type groups and forest change processes (e.g., harvest, fire, insects, and urbanization) were included. Disturbance history was derived from a Landsat time-series for each site. Each disturbance is represented by year of detection, duration, and magnitude. The cause of the disturbance was not identified. Forest biomass was measured at field plots within each of the six sites and combined with airborne LiDAR data from each site to create land validation maps. Site biomass at 30-m resolution was estimated by developing Random Forest models that include site disturbance history with the land validation maps.

    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 December 1, 2022
    Metadata Updated Date December 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Biomass (Mg ha-1) for the northern Minnesota site. Source: biomass_MN.nc

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 7, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2389176598-ORNL_CLOUD
    Data First Published 2020-02-06
    Language en-US
    Data Last Modified 2023-07-17
    Category CMS, 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 Cohen, W.B., Z. Yang, S.P. Healey, and H.E. Andersen. 2019. Disturbance History and Forest Biomass from Landsat for Six US Sites, 1985-2014. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1679
    Graphic Preview Description Biomass (Mg ha-1) for the northern Minnesota site. Source: biomass_MN.nc
    Graphic Preview File https://daac.ornl.gov/CMS/guides/Disturbance_Biomass_Maps_Fig1.png
    Harvest Object Id 4a056ae3-6d2d-4fba-adbd-2f3c6ed5bc9e
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1679
    Metadata Type geospatial
    Old Spatial -123.24 32.27 -68.48 48.29
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 9ca92a809e0882a467712940294c89f0dc9c76b9ed1a13b3c4c92d41c022e431
    Source Schema Version 1.1
    Spatial
    Temporal 1984-01-01T00:00:00Z/2014-12-31T23:59:59Z

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