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    • Multispectral Imagery, NDVI, and Terrain Models, Big Trail Lake, Fairbanks, AK, 2019

    Metadata Updated: December 6, 2023

    This dataset provides multispectral reflectance imagery (green at 550 nm, red at 660 nm, red edge at 735 nm, and near-infrared at 790 nm), normalized difference vegetation index (NDVI), and digital surface and terrain models for a 0.5 km2 area surrounding Big Trail Lake (BTL) in the Goldstream Creek Valley north of Fairbanks, Alaska. These high spatial resolution maps (13 cm x 13 cm) were generated by unmanned aerial vehicle (UAV) imagery collected on 2019-08-04. Raw images (n=908) were combined into mosaic layers that incorporated ground control points with centimeter accuracy. These layers were then used to generate vegetation, water body, and elevation maps and then combined with in situ measurements of methane flux to improve upscaling models of greenhouse gas emissions.

    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 14, 2023
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Color infrared image of Big Trail Lake in the Goldstream Creek Valley north of Fairbanks, Alaska. Ground control points (yellow triangles) surround the lake. This image was produced from dataset files BTL_NIR.tif (red), BTL_Red.tif (green), and BTL_Green.tif (blue).

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 14, 2023
    Metadata Updated Date December 6, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2761782139-ORNL_CLOUD
    Data First Published 2021-04-29
    Language en-US
    Data Last Modified 2023-09-05
    Category Vegetation, 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 Barnes, N., H. Webb, M.K. Farina, S. Powell, and J.D. Watts. 2021. Multispectral Imagery, NDVI, and Terrain Models, Big Trail Lake, Fairbanks, AK, 2019. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1834
    Graphic Preview Description Color infrared image of Big Trail Lake in the Goldstream Creek Valley north of Fairbanks, Alaska. Ground control points (yellow triangles) surround the lake. This image was produced from dataset files BTL_NIR.tif (red), BTL_Red.tif (green), and BTL_Green.tif (blue).
    Graphic Preview File https://daac.ornl.gov/VEGETATION/guides/UAV_Imagery_BigLakeTrail_Fig1.jpg
    Harvest Object Id fbb197f2-7dea-4c57-a7ad-f1c27fa507e8
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1834
    Metadata Type geospatial
    Old Spatial -147.83 64.92 -147.81 64.92
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 7e4c743bdfa4052af3fc64db091e8dd061f0afb10cf1161d1e9bf6e2fef36170
    Source Schema Version 1.1
    Spatial
    Temporal 2019-08-04T00:00:00Z/2019-08-04T23:59:59Z

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