This page shows the most recent validation reports.
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Validation against SHADOZ ozonesonde data confirms that the TROPOMI/S5p OFFL tropospheric O3 (L2_O3_TCL) data product meets mission requirements. This web article summarizes the results of the validation of the first year of S5P OFFL tropospheric ozone column data products (v01.01.05, v01.01.06 and v01.01.07) against co-located vertically integrated ozonesonde profile data collected by the SHADOZ network. All quality indicators remain within mission requirements during the period 30 April 2018 – 25 April 2019. When compared to the ground-based network, QA-screened S5P data have a positive median bias of 14% or 2.7 DU, and the spread in the intercomparisons is 23% or 4.2 DU. Two types of sampling-related bias patterns can be discerned.
A first validation against NDACC and WOUDC ground-based data confirms that the TROPOMI/S5p NRTI total O3 (L2_O3) product meets mission requirements. Initial Sentinel-5p TROPOMI L2_O3 O3 column data retrieved with the PDGS NRTI processor (v1.0.0) have been compared to reference measurements acquired by instruments contributing to WMO’s Global Atmosphere Watch. Of the order of 20 to 100 co-locations have been identified at about 20 Brewer and Dobson sites and at 11 SAOZ sites, sampling many latitudes from the Arctic to the Antarctic. The following preliminary conclusions could be drawn:Short scale temporal variations in the ozone column as captured by ground-based instruments are reproduced very similarly by S5P. This overall good agreement is corroborated by Pearson correlation coefficients well above 0.9.The bias between S5P and reference data at individual stations rarely exceeds 3%,and the network-averaged bias is about +1%.The 1-sigma spread of the differences (between S5P and…
Quarterly Validation Report of the Sentinel-5 Precursor Operational Data Products #03: July 2018 – May 2019
Quarterly Validation Report of the Sentinel-5 Precursor Operational Data Products #02: July 2018 – February 2019
Quarterly Validation Report of the Sentinel-5 Precursor Operational Data Products #01: July – October 2018