Table 2: Satellite-based datasets information.

DatasetSatelliteSpectral channels(visible (VIS), near infrared (NIR), infrared (IR))Time of observations (local time)Instrument resolution / swath (km)Cloud detection algorithm

APP-xLEO (NOAA)1 VIS + 1 NIR + 3 IR~14:00, 2:001−4 /~3000A combination of the spectral and temporal uniformity tests which are tuned specially for the polar regions [52].

CERESLEO (Terra, Aqua)1 VIS + 1 NIR + 3 IR10:30, 22:30
(Terra)
01:30, 13:30
(Aqua)
0,25−1 /2330Series of the spectral threshold tests (different between night and day) [55].

ISCCPGEO + LEO (NOAA)1 VIS + 1 IRevery 3 hour4−7 /—The spectral threshold test and a combination of the spatial and temporal uniformity tests [57].

MODISLEO (Terra, Aqua)1 VIS + 1 NIR + 3 IR10:30, 22:30
(Terra)
01:30, 13:30
(Aqua)
0,25−1 /2330Series of the spectral threshold tests and a combination of the spatial and temporal uniformity tests. Special tests for the polar regions [59, 60].

PATMOS-xLEO (NOAA)1 VIS + 1 NIR + 3 IR14:00, 2:001−4 /~3000CLAVR-x (series of the spectral threshold tests) + Naïve Bayesian methodology [62].