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 range and the spectral resolution;
the scanning mode (cross-nadir, limb).
RATING CRITERIA:
1
Differential Absorption Lidar (DIAL)
Very high-resolution SWIR + MWIR spectrometer with very narrow bandwidth
Very high-resolution SWIR spectrometer with very narrow bandwidth
2
SWIR + MWIR spectrometer
MWIR + TIR spectrometer
3
SWIR spectrometer
TIR spectrometer
4
MWIR + TIR spectrometer scanning the limb mechanically or electronically
SWIR spectrometer scanning the limb mechanically or electronically
5
SWIR + MWIR + TIR spectrometer limb scanning by solar occultation
MWIR and/or TIR spectrometer limb scanning by solar occultation