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    • ABoVE: Annual Phenology Derived from Landsat across the ABoVE Core Domain, 1984-2014

    Metadata Updated: December 6, 2023

    This dataset provides annual maps of the timing of spring onset with leaf emergence, of autumn onset with leaf senescence, and of peak greenness for each 30 m pixel derived from Landsat time series of Thematic Mapper (TM) and Enhanced Thematic Mapper (ETM+) observations from 1984 to 2014. The ABoVE core domain includes 169 ABoVE grid tiles across Alaska, USA and Alberta, British Columbia, Northwest Territories, Nunavut, Saskatchewan, and Yukon, Canada. The data provided for deriving seasonality includes the total number of cloud-free observations, r-squared values between observed and spline-predicted Enhanced Vegetation Index (EVI), long-term average minimum EVI, long-term average maximum EVI, long-term average spring onset, long-term average autumn onset, annual spring onset, and annual autumn onset. The data provided for peak greenness includes annual peak Normalized Difference Vegetation Index (NDVI), Normalized Burn Ratio (NBR), annual composite red reflectance, annual composite NIR reflectance, annual composite shortwave infrared reflectance (band 6, SWIR1), annual composite shortwave infrared reflectance (band 7, SWIR2), number of dates used to calculate composites, and day of year of associated maximum composite.

    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 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Peak greenness derived from the Normalized Difference Vegetation Index (NDVI) for the year 2010 (Band1) in the ABoVE grid cell Bh07v07. Source Bh07v07.pkgreen.etm.2010.tif.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 6, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2111930592-ORNL_CLOUD
    Data First Published 2020-01-16
    Language en-US
    Data Last Modified 2023-06-12
    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 Melaas, E.K., D. Sulla-Menashe, C.E. Woodcock, and M.A. Friedl. 2019. ABoVE: Annual Phenology Derived from Landsat across the ABoVE Core Domain, 1984-2014. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1698
    Graphic Preview Description Peak greenness derived from the Normalized Difference Vegetation Index (NDVI) for the year 2010 (Band1) in the ABoVE grid cell Bh07v07. Source Bh07v07.pkgreen.etm.2010.tif.
    Graphic Preview File https://daac.ornl.gov/ABOVE/guides/Annual_Seasonality_Greenness_Fig1.png
    Harvest Object Id 385b4c36-81b3-4c5a-8124-c3b4ef7fb3ba
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1698
    Metadata Type geospatial
    Old Spatial -170.01 50.26 -98.97 75.01
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 2073fd5f7cfa6422f787faae6ddcad551901d41accc15e18a4caefd01d507faf
    Source Schema Version 1.1
    Spatial
    Temporal 1984-01-01T00:00:00Z/2014-12-31T23:59:59Z

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