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. Author manuscript; available in PMC: 2021 Mar 9.
Published in final edited form as: Nature. 2020 Sep 9;585(7824):225–233. doi: 10.1038/s41586-020-2664-3

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