Climate variability refers to variations in the mean state and other statistics (such as standard deviations, the occurrence of extremes, etc.) of the climate on all spatial and temporal scales beyond that of individual weather events. Variability may be due to natural internal processes within the climate system (internal variability), or to variations in natural or anthropogenic external forcing (external variability). Source: IPCC, 2014: Annex II: Glossary. IPCC, Geneva, Switzerland, pp. 117-130.
Last modification 31.07.2018