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    • HAQAST Sentinel-5P TROPOMI Nitrogen Dioxide (NO2) CONUS Annual Level 3 0.01 x 0.01 Degree Gridded Data V2.4 (HAQ_TROPOMI_NO2_CONUS_A_L3) at GES DISC

    Metadata Updated: August 13, 2024

    This product provides level 3 annual averages of tropospheric Nitrogen dioxide (NO2) vertical column density derived from the level 2 Tropospheric Monitoring Instrument (TROPOMI) across the Continental United States oversampled to a spatial resolution of 0.01˚ x 0.01˚ (~1 km2) using a consistent algorithm from the European Space Agency (ESA) version 2.4 that can be used for trend analysis of air pollution. The dataset record began in 2019 and continues to the present.

    This L3 product was developed by the George Washington University Air, Climate and Health Laboratory as part of the NASA Health Air Quality Applied Science Team (HAQAST) using Level 2 version 2.4 TROPOMI NO2 files from the ESA. The TROPOMI instrument on Sentinel-5 Precursor acquires tropospheric NO2 column contents from low Earth orbit (~824 km above ground level) once per day globally at approximately 13:30 local time.

    NO2 is an air pollutant that adversely affects the human respiratory system and leads to premature mortality. NO2 is also an important precursor for ozone and fine particulates, which also have severe health impacts. In urban areas, the majority of NO2 originates from anthropogenic NOx (=NO+NO2; most NOx is emitted as NO, which rapidly cycles to NO2) emissions during high-temperature fossil fuel combustion. Tropospheric NO2 vertical column contents are qualitatively representative of near-surface NO2 concentrations and NOx emissions in urban/polluted locations.

    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

    References

    https://doi.org/10.1029/2020EF001665

    Dates

    Metadata Created Date March 28, 2024
    Metadata Updated Date August 13, 2024

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Sample image: The level 3 TROPOMI Tropospheric vertical column NO2 density for 2023

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date March 28, 2024
    Metadata Updated Date August 13, 2024
    Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
    Maintainer
    Identifier C2839237129-GES_DISC
    Data First Published 2024-01-26
    Language en-US
    Data Last Modified 2024-07-29
    Category HAQAST, 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 Dan Goldberg at George Washington University. 2024-03-15. HAQ_TROPOMI_NO2_CONUS_A_L3. Version 2.4 . HAQAST Sentinel-5P TROPOMI Nitrogen Dioxide (NO2) CONUS Annual Level 3 0.01 x 0.01 Degree Gridded Data V2.4. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://doi.org/10.5067/ACADNS5UBWPQ. https://disc.gsfc.nasa.gov/datacollection/HAQ_TROPOMI_NO2_CONUS_A_L3_2.4.html. Digital Science Data.
    Creator Dan Goldberg at George Washington University
    Data Presentation Form Digital Science Data
    Graphic Preview Description Sample image: The level 3 TROPOMI Tropospheric vertical column NO2 density for 2023
    Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/HAQ_TROPOMI_NO2_CONUS_A_L3.2.4.png
    Harvest Object Id e61c07db-f9d7-4a65-8dfc-98775d8d7a53
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/ACADNS5UBWPQ
    Metadata Type geospatial
    Old Spatial -124.75 24.5 -66.76 49.49
    Program Code 026:001
    Related Documents https://doi.org/10.1029/2020EF001665
    Release Place Greenbelt, MD, USA
    Series Name HAQ_TROPOMI_NO2_CONUS_A_L3
    Source Datajson Identifier True
    Source Hash 8668402584b02b8031ac04eea5caa2765d46e371b47bd2ff755bf2a0e728862f
    Source Schema Version 1.1
    Spatial
    Temporal 2019-01-01T00:00:00Z/2024-08-12T00:00:00Z

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