Copernicus Sentinel-5P data products

Learn more about the available Copernicus Sentinel-5P data products, and how to obtain them.

Products are freely available via the Copernicus Open Access Hub.

Data Products

TROPOMI Level 2 Aerosol Layer Height


get data


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 the 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

Temporal coverage: Since 30-Apr-2018
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 
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 Open Access Hub.






Technical Documentation on TROPOMI Aerosol Layer Height Product:

  • PUM-LH (Product User Information - information on the technical characteristics of the TROPOMI Aerosol Layer Height products)
  • ATBD-LH (Algorithm Theoretical Basis Document - detailed information on the retrieval algorithm of TROPOMI Aerosol Layer Height products)
  • IODD-LH (Input Output Data definition - description of the input and output data of the TROPOMI Aerosol Layer Height product processing).
  • PRF-LH (Product Readme File): description of changes between different product versions and overall quality information

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


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.

Navigation Menu