Fig. 3From: Learning group patterns for ground-based cloud classification in wireless sensor networksCloud samples from the Kiel database: 1. cumulus; 2. cirrus and cirrostratus; 3. cirrocumulus and altocumulus; 4. clear sky; 5. stratocumulus; 6. stratus and altostratus; and 7. cumulonimbus and nimbostratusBack to article page