Extended Data Table 2 |.
Data sources for the six input parameters used for ANN training and retrievals.
| Input parameter | Source for training set | Source for ANN-based retrieval |
|---|---|---|
| ΔTb | ELANOR simulation | CrIS L1B radiances |
| H2O vapor column | Assimilated meteorology (GMAO; TES-like sampling) | Assimilated meteorology (GMAO; CrIS collocation) |
| HNO3 column | MOZART CTM | CrIS CLIMCAPS |
| Thermal contrast | Assimilated meteorology (GMAO; TES-like sampling) | Assimilated meteorology (GMAO; CrIS collocation) |
| Pressure | Assimilated meteorology (GMAO; TES-like sampling) | Assimilated meteorology (GMAO; CrIS collocation) |
| Satellite view angle | Randomly defined | CrIS satellite pointing angle |