Retrieved ozone profiles are essential for monitoring the evolution of ozone in both the stratosphere and the troposphere. In the stratosphere, the ozone layer acts as a vital shield against harmful solar ultraviolet radiation and is currently recovering from historical depletion caused by man-made Chlorofluorocarbons (CFCs). In the troposphere, ozone acts as a toxic pollutant that plays a complex role in atmospheric chemistry. Furthermore, as an effective greenhouse gas, ozone is a significant factor in ongoing climate change studies.

Key Features and Applications

The TROPOMI ozone profile product aims to provide a comprehensive view of vertical ozone distribution to support atmospheric protection and climate research. The main parameters included in the data files are the retrieved ozone profile at 33 pressure levels and the retrieved sub-columns of ozone in 6 distinct layers. In addition, the product provides the total ozone column and tropospheric ozone columns. For advanced users and validation purposes, the dataset also includes precision and smoothing error estimates, the a-priori profile, the covariance matrices, and the averaging kernel.

PublicationsValidation Summary

Dataset Specifications

Examples of filenames (a.k.a. granules):

S5P_OFFL_L2__O3__PR_20260201T231910_20260202T010040_43039_03_020901_20260203T160214.nc S5P_NRTI_L2__O3__PR_20260201T234313_20260201T234813_43039_03_020901_20260202T005328.nc S5P_RPRO_L2__O3__PR_20220701T230527_20220702T004657_24439_03_020400_20230402T183217.nc

Elements in the filename separated by underscores after the initial "S5P":
* processing type: near-real time (NRTI), off-line (OFFL), reprocessing of off-line (RPRO)
* product identifier [10 char.]
* start date and time of granule
* end date and time of granule
* orbit number [5 char.]
* collection number [2 char.]
* version number [6 char.]
* production date and time
In case of OFFL and RPRO granules are full orbits, for NRTI granules are 5-minute chunks of orbits, and they are provided as checkboard pattern.

Dataset Specifications V2

Temporal Coverage

Since Nov-2021

Reprocessed (RPRO) dataset: from 30-Apr-2018 to 25-Jul-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 at Nadir

28 x 35 km (across x along track), at beginning of mission

28 x 28 km (across x along track), since 6 August 2019

Processor Version02.xx.xx, with x=any digit between 0 and 9

(No version 1, Initial operational version: v02.03.01)

How to Access the Data

The data related to this product and to the other S5P/TROPOMI products are accessible via the  Copernicus Data Space Ecosystem (CDSE).

Documentation and Related Datasets

Technical documentation on the S5P/TROPOMI Level-1B and Level-2 products can be found on the the  SentiWiki S5P Products page.

Dataset 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:

Dataset Citation Guidelines V2

Copernicus Sentinel-5P (processed by ESA), 2021, TROPOMI Level 2 Ozone Profile products. Version 02. European Space Agency. https://doi.org/10.5270/S5P-j7l9xvd