The Sentinel-5p TROPOMI L2 CO data product (total CO 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_CO||NRTI||CO column||6.5%||5%||Along orbit stripes. Destriped CO data in OFFL from July 2021 onwards
5% SZA dependence of bias.
Outliers in SAA and other sporadic locations not filtered by qa_value.
Since July 2019 NRTI behaves similar as OFFL. Since the processor update in July 2021 (black vertical line) the bias is reduced to 3%.
The averaged correlation coefficient reaches 0.9 for the TCCON network and 0.85 for the comparison against NDACC sites
Plots show the weekly mean relative differences for the S5P RPRO/OFFL CO columns against NDACC (top) and TCCON (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|
|#17: April 2018 - November 2022||See sentinel.esa.int||