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    • MODIS/Terra+Aqua Nadir BRDF-Adjusted Reflectance Daily L3 Global 500 m SIN Grid

    Metadata Updated: August 13, 2024

    The MODIS Near Real Time (NRT) Combined Aqua and Terra Nadir BRDF-Adjusted Reflectance, MCD43A4N, Nadir Bidirectional Reflectance Distribution Function (BRDF)-Adjusted Reflectance (NBAR) dataset is produced daily using 16 days of Terra and Aqua MODIS data at 500 meter (m) resolution. This product in sinusoidal map projection that provides view angle corrected Nadir BRDF-Adjusted Reflectances (NBAR) at local solar noon for the 7 land bands, along with corresponding mandatory QA dataset.

    There is a significant change in the science algorithm of the Collection 61 (C61) NRT BRDF/Albedo products and, therefore significant differences/discontinuities between the C6 and C61 products. C61 algorithm changes are intended to minimize the differences between the NRT and Standard BRDF. The C61 NRT BRDF code has been modified to allow for an extra round of magnitude inversion, following a full inversion using the full set of inputs. This extra magnitude inversion will only use the set of 9 days that are overlapping between standard and NRT, with the highest weight being assigned to the last day.

    Additional information from MODIS Land Science Team at: https://modis-land.gsfc.nasa.gov/brdf.html

    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 August 13, 2024

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date August 13, 2024
    Publisher NASA/GSFC/SED/ESD/HBSL/BISB/MODAPS
    Maintainer
    Identifier C2130665247-LANCEMODIS
    Data First Published 2021-09-10
    Language en-US
    Data Last Modified 2024-08-27
    Category Terra, Aqua, 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 MODIS Land Science Team/MODIS Adaptive Processing System (MODAPS). 2021-09-16. MODIS/Terra+Aqua Nadir BRDF-Adjusted Reflectance Daily L3 Global 500 m SIN Grid. Version 6.1NRT. MODAPS at NASA/GSFC. Archived by National Aeronautics and Space Administration, U.S. Government, The Land, Atmosphere Near real-time Capability for EOS (LANCE). https://doi.org/10.5067/MODIS/MCD43A4N.NRT.061.
    Creator MODIS Land Science Team/MODIS Adaptive Processing System (MODAPS)
    Harvest Object Id 1da76253-9cce-41dd-a84f-89f37f2d15fd
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/MODIS/MCD43A4N.NRT.061
    Metadata Type geospatial
    Old Spatial -180.0 -90.0 180.0 90.0
    Program Code 026:001
    Release Place MODAPS at NASA/GSFC
    Source Datajson Identifier True
    Source Hash bd0156b739d54ce1a0c14aa07b7a9dc5014b4bdda8331c8a75c1946a0a2ae5f5
    Source Schema Version 1.1
    Spatial
    Temporal 2021-09-16T00:00:00Z/2024-08-12T00:00:00Z

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