...
The achieved data quality of the data products including comparison with the Target Requirements (TR) is described in Section 5 of document Product Quality Assessment Report (MTGHG PQAR, 2024) and reported in Table 2.
...
- The overall monthly mean uncertainty is 17.3 ppb and the mean bias is -1.81 ppb. Relative systematic error, i.e., the spatio-temporal error, is 3.80 ppb (1-sigma).
- Overall, this product has therefore reasonable accuracy.
- The linear drift could not be computed (for more details, see MTGHG PQAR, 2024).
Example visualization of key variables
...
PQAR MTGHG, 2024: Crevoisier, C., Meilhac, N., C3S Greenhouse Gas (GHG: MTCO2 v10.1 & MTCH4 v10.2): Product Quality Assessment Report (PQAR)
TRD GAD GHG, 2024: Buchwitz, M., et al., Target Requirement and Gap Analysis Document, Copernicus Climate Change Service (C3S) project on satellite-derived Essential Climate Variable (ECV) Greenhouse Gases (CO2 and CH4) data products (project C3S2_312a_Lot2), Version 5.6, 22-Mar-2024, pp. 87, 2024. Latest version: http://wdc.dlr.de/C3S_312b_Lot2/Documentation/GHG/C3S2_312a_Lot2_TRD-GAD_GHG_latest.pdf
...