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    • Impacts of Wildfires on Boreal Forest Ecosystem Carbon Dynamics

    Metadata Updated: September 16, 2024

    This dataset contains simulations of net primary production (NPP), heterotrophic respiration (RH), net ecosystem production (NEP), and soil temperature data in North American boreal forests for the period 1986-2020. Data sources included historical fire sources and Landsat data. The delta Normalized Burn Ratio (dNBR), which can be used to represent burn severity for a fire, was calculated for each individual fire over the time period. The interactions between canopy, fire and soil thermal dynamics were modelled using a soil surface energy balance model incorporated into a previous Terrestrial Ecosystem Model (TEM). Using the revised TEM, two regional simulations were conducted with and without fire disturbance. Fire polygons were dissected into each unit with unique fire history and then intersected with each grid cell to measure fire impacts. The output values for each grid cell are the area-weighted mean of each fire polygon and unburned area within the cell. Two extra simulations without a canopy energy balance scheme were also conducted to quantify the impact of the canopy. Soil temperature was simulated with and without the canopy energy balance scheme in the model in addition to considering fire impacts.

    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 September 16, 2024
    Metadata Updated Date September 16, 2024

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Spatial pattern of carbon dynamics during 1986-2020: (a) cumulative net ecosystem productivity (NEP) considering fires; (b) cumulative NEP without considering fires; (c) differences of NEP with and without considering fires (a minus b); (d) time-mean ecosystem carbon storage (vegetation carbon plus soil carbon) considering fires; (e) ecosystem carbon storage without considering fires; (f) differences of carbon storage with and without considering fires (d minus e).

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 16, 2024
    Metadata Updated Date September 16, 2024
    Publisher ORNL_DAAC
    Maintainer
    Identifier C3234724704-ORNL_CLOUD
    Data First Published 2024-09-06
    Language en-US
    Data Last Modified 2024-09-11
    Category NACP, 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 Xu, Y., Q. Zhuang, B. Zhao, M. Billmire, C. Cook, J.A. Graham, N.H.F. French, and R. Prinn. 2024. Impacts of Wildfires on Boreal Forest Ecosystem Carbon Dynamics. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2359
    Graphic Preview Description Spatial pattern of carbon dynamics during 1986-2020: (a) cumulative net ecosystem productivity (NEP) considering fires; (b) cumulative NEP without considering fires; (c) differences of NEP with and without considering fires (a minus b); (d) time-mean ecosystem carbon storage (vegetation carbon plus soil carbon) considering fires; (e) ecosystem carbon storage without considering fires; (f) differences of carbon storage with and without considering fires (d minus e).
    Graphic Preview File https://daac.ornl.gov/NACP/guides/Wildfire_Impacts_Boreal_Ecosys_Fig1.jpg
    Harvest Object Id 470e3481-3978-4e5e-9594-8a25b0124b45
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/2359
    Metadata Type geospatial
    Old Spatial -166.0 43.5 -53.0 70.0
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash e1ba0f85573e8a7a8aabb76138690076e9c922cfa9854cba91198e5cb261ad68
    Source Schema Version 1.1
    Spatial
    Temporal 1986-01-01T00:00:00Z/2020-12-31T23:59:59Z

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