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    • VIIRS/SNPP Deep Blue Aerosol L2 6 Min Swath 6km

    Metadata Updated: October 1, 2024

    The VIIRS/SNPP Deep Blue Aerosol L2 6-Min Swath 6 km product from the Visible Infrared Imaging Radiometer Suite (VIIRS) determines atmospheric aerosol loading for daytime cloud-free snow-free scenes. This orbit-level product (Short-name: AERDB_L2_VIIRS_SNPP) has an at-nadir resolution of 6 km x 6 km, and progressively increases away from nadir given the sensor’s scanning geometry and Earth’s curvature. Viewed differently, this product’s resolution accommodates 8 x 8 native VIIRS moderate-resolution (M-band) pixels that nominally have ~750 m horizontal pixel size. The L2 Deep Blue AOT data products, at 550 nanometers reference wavelengths, are derived from particular VIIRS bands using two primary AOT retrieval algorithms: Deep Blue algorithm over land, and the Satellite Ocean Aerosol Retrieval (SOAR) algorithm over ocean. Although this product is called Deep Blue based on retrievals for the land algorithm, the data includes over-water retrievals as well.

    This L2 description pertains to the VIIRS Deep Blue Aerosol collection version 2.0 (C2) product. Significant changes have been made to the V2.0 Deep Blue/SOAR algorithms to further improve the data quality. For C2.0, the aerosol products are available for NOAA20 VIIRS in addition to SNPP. Some of changes in the retrieval algorithms and data products include, new SDS suite for prognostic uncertainties of 550 nm AOT over both land and ocean is added, surface pressure is better accounted for for both over-land and over-ocean retrievals by adding surface pressure nodes in the aerosol lookup table, and a number of other improvements which can be found from Product page at: https://ladsweb.modaps.eosdis.nasa.gov/missions-and-measurements/products/AERDB_L2_VIIRS_SNPP

    For more information consult Deep Blue aerosol team Page at: https://deepblue.gsfc.nasa.gov

    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 May 30, 2023
    Metadata Updated Date October 1, 2024

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date May 30, 2023
    Metadata Updated Date October 1, 2024
    Publisher Not provided
    Maintainer
    Identifier C2600303218-LAADS
    Data First Published 2023-01-01
    Language en-US
    Data Last Modified 2024-09-25
    Category Suomi-NPP, 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 NASA VIIRS Atmosphere SIPS. 2023-01-16. VIIRS Deep Blue Level-3 Daily Aerosol Data 1x1 degree grid . Version 2.0. MODAPS at NASA/GSFC. Archived by National Aeronautics and Space Administration, U.S. Government, L1 and Atmosphere Archive and Distribution System (LAADS). https://doi.org/10.5067/VIIRS/AERDB_L2_VIIRS_SNPP.002. https://doi.org/10.5067/VIIRS/AERDB_L2_VIIRS_SNPP.002.
    Creator NASA VIIRS Atmosphere SIPS
    Harvest Object Id 48271176-e0c9-41a1-a306-19b022478eba
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/VIIRS/AERDB_L2_VIIRS_SNPP.002
    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 764edba49e76abc8a6904a5ac0a6d9d9384b31e3a147b06107104385d4a9a2e0
    Source Schema Version 1.1
    Spatial
    Temporal 2012-03-01T00:00:00Z/2024-09-30T00:00:00Z

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