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    • ABoVE: Lake and Wetland Classification from L-band SAR, Alaska and Canada, 2017-2019

    Metadata Updated: December 6, 2023

    This dataset contains a high-resolution land cover classification focused on water and wetland vegetation classes over three NASA ABoVE Campaign regions: Yukon Flats, Alaska, USA; the Peace-Athabasca Delta, Alberta; and the Canadian Shield, Northwest Territories (NWT), Canada. The product was derived from L-band synthetic aperture radar (SAR) acquisitions from the airborne NASA UAVSAR instrument in 2017-2019. The classification was trained and validated from field visits, UAV images, satellite imagery as well as other ABoVE datasets. Classifications in all regions are provided as both preliminary 13-class versions and final, simplified 5-class versions. Training and test data used for the classifier are also included as well as characteristics of lakes in the study area. This land cover classification was developed to support a project focusing on potential methane emissions from the shallow near-shore, or littoral, regions of lakes. The emergent aquatic vegetation classes can be used as a proxy for these littoral zones. Wetland vegetation classifications are provided as gridded raster files with an approximately 5-meter spatial resolution and aligned with the original UAVSAR footprints. Composite mosaics that aggregate these UAVSAR scenes by region and day of acquisition, if applicable, are also provided. Classifications in all regions are provided as both preliminary 13-class versions and final 5-class versions.

    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

    A preliminary wetland classification for Canadian Shield lakes north of Yellowknife, NWT, Canada. Missing data in some lakes appear as white spots. Source: bakerc_16008_19059_012_190904_L090_CX_01_Freeman-inc_cls.tif

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 6, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2192619280-ORNL_CLOUD
    Data First Published 2021-12-21
    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 Kyzivat, E.D., L.C. Smith, C. Huang, C. Wang, T. Langhorst, J.V. Fayne, M.E. Harlan, Y. Ishitsuka, D. Feng, L.H. Pitcher, and T.M. Pavelsky. 2021. ABoVE: Lake and Wetland Classification from L-band SAR, Alaska and Canada, 2017-2019. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1883
    Graphic Preview Description A preliminary wetland classification for Canadian Shield lakes north of Yellowknife, NWT, Canada. Missing data in some lakes appear as white spots. Source: bakerc_16008_19059_012_190904_L090_CX_01_Freeman-inc_cls.tif
    Graphic Preview File https://daac.ornl.gov/ABOVE/guides/Lake_Wetland_Classes_UAVSAR_Fig1.jpg
    Harvest Object Id 9edf5893-a8c3-42ea-8edc-ecfa1d2880ff
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1883
    Metadata Type geospatial
    Old Spatial -149.16 53.71 -107.86 67.91
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 48be3daf57595a1a1d57755b5ce3865e0069e3b4575c1082f14af43068935c4f
    Source Schema Version 1.1
    Spatial
    Temporal 2017-01-01T00:00:00Z/2019-09-19T23:59:59Z

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