1. Establishing the processing chain

FIDUCEO’s philosophy is for measurement-function centred uncertainty analysis trees, however it is useful also to see a schematic diagram that shows the flow of information and any pre-processing. This starts with Level 0 (the satellite data), shows the processing to Level 1 (usually the FIDUCEO FDCR), and then any pre-processing for Level 2, e.g. cloud screening and pixel choice.