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    • Annual Aboveground Biomass Maps for Forests in the Northwestern USA, 2000-2016

    Metadata Updated: December 3, 2024

    This dataset provides annual maps of aboveground biomass (AGB, Mg/ha) for forests in Washington, Oregon, Idaho, and western Montana, USA, for the years 2000-2016, at a spatial resolution of 30 meters. Tree measurements were summarized with the Fire and Fuels Extension of the Forest Vegetation Simulator (FFE-FVS) to estimate AGB in field plots contributed by stakeholders, then lidar was used to predict plot-level AGB using the Random Forests machine learning algorithm. The machine learning outputs were used to predict AGB from Landsat time series imagery processed through LandTrendr, climate metrics generated from 30-year climate normals, and topographic metrics generated from a 30-m Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM). The non-forested pixels were masked using the PALSAR 2009 forest/nonforest mask.

    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 3, 2024

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Forest aboveground biomass in megagrams per hectare for the year 2016. Source: AGB_Forest_NW_USA_2016.tif

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 3, 2024
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2398119727-ORNL_CLOUD
    Data First Published 2019-11-14
    Language en-US
    Data Last Modified 2024-11-27
    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 Fekety, P.A., and A.T. Hudak. 2019. Annual Aboveground Biomass Maps for Forests in the Northwestern USA, 2000-2016. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1719
    Graphic Preview Description Forest aboveground biomass in megagrams per hectare for the year 2016. Source: AGB_Forest_NW_USA_2016.tif
    Graphic Preview File https://daac.ornl.gov/CMS/guides/CMS_AGB_NW_USA_Fig1.png
    Harvest Object Id f556e802-11f0-4072-9d88-baea62227548
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1719
    Metadata Type geospatial
    Old Spatial -127.52 39.81 -110.31 50.79
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash efef276dc1d28dcb7c316a32e5ed92f53cc04755785de9963bf2e209de26ae67
    Source Schema Version 1.1
    Spatial
    Temporal 2000-01-01T00:00:00Z/2016-12-31T23:59:59Z

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