Note: The S5P L2_CH4 data product has recently been reprocessed with processor version 02.04.00, replacing older data versions. First validation results for this full-mission reprocessing are published in the quarterly validation report #18. Users still making use of previous data versions are requested to refer to the quarterly validation report #17.
Validation Summary
The Sentinel-5p TROPOMI L2 CH4 data product (dry air averaged methane column) is in good overall agreement with correlative ground-based measurements from NDACC and TCCON. Bias and dispersion estimates (see Table below) meet mission requirements.
| Product ID | Stream | Product | Bias | Dispersion | Special features |
| L2_CH4 | RPRO/OFFL | xCH4 | +0.3% | 0.7% | Along orbit stripes. Underestimation at low albedo. Remaining outliers with qa_value >0.5. Outlying CH4 values observed along coastal or mountain regions, e.g. in Greenland. |
The averaged correlation coefficient is 0.65 for the TCCON network
Plots show the weekly mean relative differences for the S5P RPRO/OFFL xCH4 columns against TCCON (top) and NDACC (bottom) sites. Sites are sorted by decreasing latitude.
For more information please consult the latest issue of the Sentinel-5p Routine Operations Consolidated Validation Report (ROCVR).
| Latest Quarterly Validation Report | Product info | Current Processor Version |
| #18: April 2018 - February 2023 | See sentinel.esa.int |
02.05.00 |