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    • VIIRS/NPP Gross and Net Primary Production Gap-Filled Yearly L4 Global 500m SIN Grid V002

    Metadata Updated: August 30, 2025

    The NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) Gross and Net Primary Production (NPP) Gap-Filled (VNP17A3GF) Version 2 product is a cumulative composite of Gross Primary Productivity (GPP) values based on the radiation use efficiency concept that is potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation. VNP17A3GF is a yearly composite at 500 meter (m) spatial resolution delivered as a gridded Level 4 (L4) product in Sinusoidal projection. The VNP17A3GF will be generated at the end of each year when the entire yearly 8-day VNP15A2H is available. Hence, the gap-filled VNP17A3GF is the improved VNP17A2, which has cleaned the poor-quality inputs from 8-day Leaf Area Index and Fraction of Photosynthetically Active Radiation (LAI/FPAR) based on the Quality Control (QC) label for every pixel. If any LAI/FPAR pixel did not meet the quality screening criteria, its value is determined through linear interpolation. However, users cannot get VNP17A3GF in near-real time because it will be generated only at the end of a given year.Provided in the VNP17A3GF product are layers for GPP, NPP, along with a quality control layer. A low resolution browse image for GPP is also available for each VNP17A3GF granule.Known Issues* For complete information about known issues please refer to the MODIS/VIIRS Land Quality Assessment website.

    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 August 21, 2025
    Metadata Updated Date August 30, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date August 21, 2025
    Metadata Updated Date August 30, 2025
    Publisher LP DAAC;NASA/GSFC/SED/ESD/TISL/LandSIPS
    Maintainer
    Identifier 10.5067/VIIRS/VNP17A3GF.002
    Data Last Modified 2025-08-28
    Category Earth Science
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 08d7f65f-2777-4447-b406-28ec5c82156f
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/VIIRS/VNP17A3GF.002
    Old Spatial {"NorthBoundingCoordinate":90,"WestBoundingCoordinate":-180,"EastBoundingCoordinate":180,"SouthBoundingCoordinate":-90},"CARTESIAN"
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash 255120964e16f74d278df032a4291f9af3e2b1b8ac66f53daee48a41e12146ca
    Source Schema Version 1.1
    Spatial
    Temporal 2012-01-01/2012-01-01

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