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    • ABoVE: MODIS-Derived Daily Mean Blue Sky Albedo for Northern North America, 2000-2017

    Metadata Updated: December 7, 2023

    This dataset contains MODIS-derived daily mean shortwave blue sky albedo for northern North America (i.e., Canada and Alaska) and a set of quality control flags for each albedo value to aid in user interpretation. The data cover the period of February 24, 2000 through April 22, 2017. The blue sky albedo data were derived from the MODIS 500-m version 6 Bidirectional Reflectance Distribution Function and Albedo (BRDF/Albedo) Model Parameters MCD43A1 dataset (MCD43A1.006, https://doi.org/10.5067/MODIS/MCD43A1.006) (Schaaf & Wang, 2015a, please refer to the MCD43 documentation and user guides for more information). Blue sky refers to albedo calculated under real-world conditions with a combination of both diffuse and direct lighting based on atmospheric and view-geometry conditions. Daily mean albedo was calculated by averaging hourly instantaneous blue sky albedo values weighted by the solar insolation for each time interval. Potter et al. (2019, https://doi.org/10.1111/gcb.14888) is the associated paper for this dataset. Note the actual extent of the dataset in Figure 1 of the User Guide. Users are encouraged to refer to the User Guide for further important information about the use of this dataset.

    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 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Daily mean shortwave blue sky albedo for April 7, 2017. Blue sky refers to albedo calculated under real-world conditions with a combination of both diffuse and direct lighting based on atmospheric and view-geometry conditions. Source file: bluesky_albedo_2017_097_albedo.tif.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 7, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2113058037-ORNL_CLOUD
    Data First Published 2021-02-27
    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 Solvik, K.K., S. Potter, A.M. Erb, M. Roman, C. Schaaf, Q. Sun, Z. Wang, and B.M. Rogers. 2019. ABoVE: MODIS-Derived Daily Mean Blue Sky Albedo for Northern North America, 2000-2017. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1605
    Graphic Preview Description Daily mean shortwave blue sky albedo for April 7, 2017. Blue sky refers to albedo calculated under real-world conditions with a combination of both diffuse and direct lighting based on atmospheric and view-geometry conditions. Source file: bluesky_albedo_2017_097_albedo.tif.
    Graphic Preview File https://daac.ornl.gov/ABOVE/guides/Albedo_Boreal_North_America_Fig1.png
    Harvest Object Id 3c71e0e2-7f70-4335-b16b-587eea8ce12f
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1605
    Metadata Type geospatial
    Old Spatial -173.09 41.68 -52.62 79.08
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash e53b656d638731c1f20ed234d7be51e5782147037864867d4c1734bb4fd61260
    Source Schema Version 1.1
    Spatial
    Temporal 2000-02-24T00:00:00Z/2017-04-22T23:59:59Z

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