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 ID | Stream | Product | Version | Orbits | Bias | Dispersion | Special 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 #12: April 2018 - September 2021.
