Sentinel-5P TROPOMI NO 2 retrieval: impact of version v2.2 improvements and comparisons with OMI and ground-based data

Abstract. Nitrogen dioxide (NO2) is one of the main data products measured by the Tropospheric Monitoring Instrument (TROPOMI) on the Sentinel-5 Precursor (S5P) satellite, which combines a high signal-to-noise ratio with daily global coverage and high spatial resolution. TROPOMI provides a valuable source of information to monitor emissions from local sources such as power plants, industry, cities, traffic and ships, and variability of these sources in time. Validation exercises of NO2 v1.2–v1.3 data, however, have revealed that TROPOMI's tropospheric vertical column densities (VCDs) are too low by up to 50 % over highly polluted areas. These findings are mainly attributed to biases in the cloud pressure…

• NA
  National Aeronautics and Space Administration
• CC
  Carnegie Corporation of New York
• ES
  European Space Agency

  Award: 4000117151/16/I-LG
• EC
  European Commission
• UN
  Ulsan National Institute of Science and Technology
• BF
  Belgian Federal Science Policy Office

  Awards: PEA 4000116692, TROVA-E2
• CN
  Centre National d’Etudes Spatiales
• NS
  Netherlands Space Office
• NO
  Nederlandse Organisatie voor Wetenschappelijk Onderzoek

  Award: 184.034.015
• CN
  Centre National de la Recherche Scientifique
• IP
  Institut Polaire Français Paul Emile Victor
• EA
  Environment and Climate Change Canada
• II
  Indian Institute of Science Education and Research Mohali
• NO
  National Oceanic and Atmospheric Administration
• GS
  Goddard Space Flight Center
• IN
  Institut national des sciences de l'Univers