Gap analyses by variable, type of mission or WIGOS subcomponent
Variable sorting criteria
Each instrument is assigned with a 5-step rating, evaluated as a blend of several elements such as the uncertainty, the vertical resolution, and the frequency and spatial resolution of the retrieved measurement in comparison with the space-time variability of the geophysical parameter. For this particular Variable, the rating is driven by:
the spectral resolution;
the scanning mode.(cross-nadir, limb).
RATING CRITERIA:
1
High-resolution UV spectrometer
2
Medium-resolution UV spectrometer
3
UV spectrometer scanning the limb mechanically or electronically
4
UV spectrometer limb scanning by star occultation
5
UV spectrometer limb scanning by solar occultation