Learn more about the available Copernicus Sentinel-5P data products, and how to obtain them.
Products are freely available via the Copernicus Data Space Ecosystem.
Sentinel-5 Precursor Level 2 Nitrogen Dioxide
Sentinel-5 Precursor Level 2 Nitrogen Dioxide(L2__NO2___) |
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The TROPOMI instrument onboard Sentinel-5 Precursor is a nadir-viewing, imaging spectrometer covering wavelength bands between the ultraviolet and the shortwave infrared. The instrument uses passive remote sensing techniques to attain its objective by measuring, at the Top Of Atmosphere (TOA), the solar radiation reflected by and radiated from Earth.
The TROPOMI instrument, single payload onboard Sentinel-5 Precursor, retrieves operationally tropospheric and stratospheric NO2 column products. The TROPOMI NO2 data products pose an improvement over previous NO2 data sets, particularly in their unprecedented spatial resolution, but also in the separation of the stratospheric and tropospheric contributions of the retrieved slant columns, and in the calculation of the air-mass factors used to convert slant to total columns.
Data Set Specifications V2
| Temporal coverage: |
Since 01-Jul-2021. Since 01-May-2018 to 14-Nov-2021 (see section ‘How to access this data’ below) Reprocessed (RPRO) dataset: since 30-04-2018 to 25-07-2022 |
| Spatial coverage: | ~2600 km swath. Full daily surface coverage of radiance and reflectance measurements for latitudes > 7° and < -7°, and better than 95 % coverage for latitudes in the interval [-7°, 7°]. |
| Spatial resolution: |
3.5 x 7.0 Km (across x along track), at beginning of mission
3.5 x 5.5 Km (across x along track), since 6 August 2019
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| Processor Version: | 02.xx.xx, with x=any digit between 0 and 9 |
Data Set Specifications V1
| Temporal coverage: | Since 30-Apr-2018 to 01-Jul-2021 |
| Spatial coverage: | ~2600 km swath. Full daily surface coverage of radiance and reflectance measurements for latitudes > 7° and < -7°, and better than 95 % coverage for latitudes in the interval [-7°, 7°]. |
| Spatial resolution: |
3.5 x 7.0 Km (across x along track), at beginning of mission
3.5 x 5.5 Km (across x along track), since 6 August 2019
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| Processor Version: | 01.xx.xx, with x=any digit between 0 and 9 |
Processing Level
Level 2
How to access this data
Accessible via the Copernicus Data Space Ecosystem.
Since 15th December 2021 a new Nitrogen Dioxide dataset reprocessed with the Sentinel-5P Product Algorithm Laboratory (PAL) using the official processor Version 2.3.1 is available to the users to allow consistent long-term data analysis (e.g., trends in air pollution based on COVID-19 impact). It covers the time period 1st May 2018 to 14th November 2021 and is available at https://data-portal.s5p-pal.com. It is planned to replace this data set during 2023 by an upgraded product reprocessed with the PDGS.
Resources
Technical Documentation on TROPOMI NO2 Product:
- PRF-NO2 (Product Readme File - description of changes between different product versions and overall quality information)
- PUM-NO2 Dataset Version 2 - (Product User Information - information on the technical characteristics of the TROPOMI NO2 products)
- PUM-NO2 Dataset Version 1 - (Product User Information - information on the technical characteristics of the TROPOMI NO2 products)
- ATBD-NO2 Dataset Version 1.4.0 and 2 - (Algorithm Theoretical Basis Document - detailed information on the retrieval algorithm of TROPOMI NO2 products)
- ATBD-NO2 Dataset Version 1 (except 1.4.0) - (Algorithm Theoretical Basis Document - detailed information on the retrieval algorithm of TROPOMI NO2 products)
- IODD-NL Dataset Version 2 - (Input Output Data definition - description of the input and output data of the TROPOMI NO2 product processing).
- IODD-NL Dataset Version 1 - (Input Output Data definition - description of the input and output data of the TROPOMI NO2 product processing).
Technical Documentation on other TROPOMI Level 1B and L2 Products:
Other Copernicus Sentinel-5 Precursor/TROPOMI documents:
Related Datasets
The Products and Algorithms page contain links to other S5P/TROPOMI datasets (click on the corresponding product type).
Data Citation Guidelines V2
Users, who, in their research, use ESA Earth Observation data that have been assigned a DOI, are asked to use it when citing the data source in their publications:
Copernicus Sentinel-5P (processed by ESA), 2021, TROPOMI Level 2 Nitrogen Dioxide total column products. Version 02. European Space Agency. https://doi.org/10.5270/S5P-9bnp8q8
Data Citation Guidelines V1
Users, who, in their research, use ESA Earth Observation data that have been assigned a DOI, are asked to use it when citing the data source in their publications:
Copernicus Sentinel-5P (processed by ESA), 2018, TROPOMI Level 2 Nitrogen Dioxide total column products. Version 01. European Space Agency. https://doi.org/10.5270/S5P-s4ljg54