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 Ultraviolet Aerosol Index(L2__AER_AI) |
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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.
TROPOMI aerosol index is referred to as the Ultraviolet Aerosol Index (UVAI). The relatively simple calculation of the Aerosol Index is based on wavelength dependent changes in Rayleigh scattering in the UV spectral range where ozone absorption is very small. UVAI can also be calculated in the presence of clouds so that daily, global coverage is possible. This is ideal for tracking the evolution of episodic aerosol plumes from dust outbreaks, volcanic ash, and biomass burning.
Data Set Specifications V2
| Temporal coverage: |
Since 01-Jul-2021 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.
Resources
- Technical Documentation on TROPOMI Aerosol Index Product:
- PRF-AI (Product Readme File - description of changes between different product versions and overall quality information
- PUM-AI Dataset Version 2 - (Product User Information - information on the technical characteristics of the TROPOMI Aerosol Index products)
- PUM-AI Dataset Version 1 - (Product User Information - information on the technical characteristics of the TROPOMI Aerosol Index products)
- ATBD-AI Dataset Version 2 - (Algorithm Theoretical Basis Document - detailed information on the retrieval algorithm of TROPOMI Aerosol Index products)
- ATBD-AI Dataset Version 1 - (Algorithm Theoretical Basis Document - detailed information on the retrieval algorithm of TROPOMI Aerosol Index products)
- IODD-NL Dataset Version 2 - (Input Output Data definition - description of the input and output data of the TROPOMI Aerosol Index product processing).
- IODD-NL Dataset Version 1 - (Input Output Data definition - description of the input and output data of the TROPOMI Aerosol Index product processing).
Technical Documentation on other TROPOMI Level 1B and L2 Products:
Other 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 Ultraviolet Aerosol Index products. Version 02. European Space Agency. https://doi.org/10.5270/S5P-3dgz66p
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 Ultraviolet Aerosol Index products. Version 01. European Space Agency. https://doi.org/10.5270/S5P-0wafvaf