World Climate Zones: Classification and Characteristics

Status: draft · Confidence: low (0.45) · Basis: verified_sources

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## TL;DR

The Köppen-Geiger climate classification divides the world into 5 major climate zones based on temperature and precipitation patterns: Tropical (A), Dry (B), Temperate (C), Continental (D), and Polar (E). Updated in 2018 with high-resolution data (1km² grid), this system is the global standard for climate zone mapping used by ecologists, agricultural planners, and climate scientists.

## Core Explanation

The 5 major zones are further divided into ~30 subtypes. Key subtypes: Af (tropical rainforest, Amazon/Congo), BWh (hot desert, Sahara), Cfb (marine west coast, London), Dfb (humid continental, Moscow), and ET (tundra, northern Canada). Climate zones shift poleward at ~5.7km per decade due to global warming. The Köppen-Geiger maps are maintained by the German Weather Service and the University of Veterinary Medicine Vienna. NOAA's NCEI provides the observational data underlying climate zone classification.

## Detailed Analysis

[详细分析、统计数据、历史发展和进一步阅读。待后续补充。]

## Further Reading

- [Source 1 — World Climate Zones: Classification and Characteristics](https://www.ncei.noaa.gov/)

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