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

Description

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.

Resources

Name Format Description Link
21 Access the data via HTTPS. https://acdisc.gesdisc.eosdis.nasa.gov/data/HAQAST/HAQ_TROPOMI_NO2_CONUS_A_L3.2.4/
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FACADNS5UBWPQ
34 Sample image: The level 3 TROPOMI Tropospheric vertical column NO2 density for 2023 https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/HAQ_TROPOMI_NO2_CONUS_A_L3.2.4.png
33 README Document https://acdisc.gesdisc.eosdis.nasa.gov/data/HAQAST/HAQ_TROPOMI_NO2_CONUS_A_L3.2.4/doc/README_TROPOMI_Level3_TropNO2_DG_20240222.pdf
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/HAQ_TROPOMI_NO2_CONUS_A_L3_2.4.html
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=HAQ_TROPOMI_NO2_CONUS_A_L3
21 Access the data via the OPeNDAP protocol. https://acdisc.gesdisc.eosdis.nasa.gov/opendap/HAQAST/HAQ_TROPOMI_NO2_CONUS_A_L3.2.4/contents.html
21 Documentation with step-by-step instructions on accessing and reading data at GES DISC https://disc.gsfc.nasa.gov/information/howto

Tags

  • atmosphere
  • atmospheric-chemistry
  • air-quality
  • earth-science

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