Köppen climate classification

climate classification system
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The Köppen climate classification is one of the most widely used climate classification systems. It was developed by Wladimir Köppen, a German climatologist, around 1900 (with several further modifications by himself, notably in 1918 and 1936). It is based on the concept that native vegetation is the best expression of climate, thus climate zone boundaries have been selected with vegetation distribution in mind.

An updated Köppen–Geiger climate map[1]
  Af
  Am
  Aw/As
  BWh
  BWk
  BSh
  BSk
  Csa
  Csb
  Csc
  Cwa
  Cwb
  Cwc
  Cfa
  Cfb
  Cfc
  Dsa
  Dsb
  Dsc
  Dsd
  Dwa
  Dwb
  Dwc
  Dwd
  Dfa
  Dfb
  Dfc
  Dfd
  ET
  EF

System

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  • Group A is tropical.[2] The average temperature in the coolest month must be at least 18° C.[2]
  • Group B is arid[2] - desert and steppe/semi-arid. The average precipitation must be less than a certain amount that depends on the temperature.
  • Group C is mesothermal,[2] the subtropical and temperate climates. The warmest months must have an average greater than 10° C and the coldest month must have a temperature between 0 or -3° C and 18° C. This group includes humid subtropical, Mediterranean, highland, and oceanic.
  • Group D is microthermal or continental (hot/warm summers and cold winters) and subarctic (short warm summers and cold winters). The warmest months must have an average greater than 10° C and the coldest months must have an average of less than 0 or -3° C.
  • Group E is polar[2] and alpine. The warmest month must have an average temperature less than 10° C.[3]
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References

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  1. Beck, Hylke E.; Zimmermann, Niklaus E.; McVicar, Tim R.; Vergopolan, Noemi; Berg, Alexis; Wood, Eric F. (30 October 2018). "Present and future Köppen-Geiger climate classification maps at 1-km resolution". Scientific Data. 5: 180214. Bibcode:2018NatSD...580214B. doi:10.1038/sdata.2018.214. ISSN 2052-4463. PMC 6207062. PMID 30375988.
  2. 2.0 2.1 2.2 2.3 2.4 Harm J. De Blij; Peter O. Muller; Richard S. Williams Jr., Physical Geography: The Global Environment (New York: Oxford University Press, 2004), p. 71
  3. "Koppen climate classification - Description, Map, & Chart". Encyclopedia Britannica.