Article Index

Validation Summary

The Sentinel-5p TROPOMI L2_O3_TCL data (CCD) are in good overall agreement with correlative ground-based measurements (SHADOZ ozonesonde) and with EOS-Aura OMI and MetOp-B GOME-2 satellite data. Bias and dispersion estimates meet mission requirements (<25%).

Product IDStreamProductVersionOrbitsBiasDispersionSpecial features
L2_O3_TCL OFFL CCD 02.01.04
02.01.03
16104-17282
14132-16090
+21% /
+4.1 DU
32% /
5.5 DU
Preliminary results:
No clear change w.r.t. V01.01.XX results. Consolidation requires additional validation data.
01.01.08
01.01.07
01.01.06
01.01.05
12288-14075
7804-12273
7435-7791
2824-7421
+14% /
+3.0 DU
24% /
4.7 DU
Geographical imprints of sampling-related biases. Seasonal change of the bias.

 

The graphs below display the up-to-date estimates of TROPOMI tropospheric O3 data quality (combining V01 and V02) obtained from comparisons to ozonesonde. Shown are the median value (left) and the dispersion (right, 68% interpercentile) of the absolute difference TROPOMI minus ozonesonde, at each SHADOZ site (marker) in the 20o S - 20o N tropical belt. The blue line and light blue shade indicate the mean value and the standard deviation of the sample of station estimates for the SHADOZ network.

A detailed description of the method and a comprehensive discussion of validation results can be found in the Quarterly Validation Report #10: April 2018 – March 2021.

TROPOMI vs SHADOZ ozonesonde