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 Aerosol Layer Height
Sentinel-5 Precursor Level 2 Aerosol Layer Height(L2__AER_LH) |
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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 Aerosol Layer Height product focuses on retrieval of vertically localised aerosol layers in the free troposphere, such as desert dust, biomass burning aerosol, or volcanic ash plumes. The height of such layers is retrieved for cloud-free conditions. Height information for aerosols in the free troposphere is particularly important for aviation safety. Scientific applications include radiative forcing studies, long-range transport modelling and studies of cloud formation processes. Aerosol height information also helps to interpret the UV Aerosol Index (UVAI) in terms of aerosol absorption as the index is strongly height-dependent.
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 Layer Height Product:
- PRF-LH (Product Readme File): description of changes between different product versions and overall quality information
- PUM-LH Data Version 2 (Product User Information - information on the technical characteristics of the TROPOMI Aerosol Layer Height products)
- PUM-LH Data Version 1 (Product User Information - information on the technical characteristics of the TROPOMI Aerosol Layer Height products)
- ATBD-LH Data Version 2 (Algorithm Theoretical Basis Document - detailed information on the retrieval algorithm of TROPOMI Aerosol Layer Height products)
- ATBD-LH Data Version 1 (Algorithm Theoretical Basis Document - detailed information on the retrieval algorithm of TROPOMI Aerosol Layer Height products)
- IODD-LH Data Version 2 (Input Output Data definition - description of the input and output data of the TROPOMI Aerosol Layer Height product processing).
- IODD-LH Data Version 1 (Input Output Data definition - description of the input and output data of the TROPOMI Aerosol Layer Height 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 contains links to other Copernicus 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 Aerosol Layer Height products. Version 02. European Space Agency. https://doi.org/10.5270/S5P-7g4iapn
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 Aerosol Layer Height products. Version 01. European Space Agency. https://doi.org/10.5270/S5P-j7aj4gr