In climatology, what does the Köppen climate classification letter 'B' signify?

💡 Solution & Explanation

In the Köppen climate classification framework, the capital letter 'B' designates dry climates where evaporation exceeds precipitation, encompassing both arid desert and semi-arid steppe regions. Tropical humid regimes are designated by the letter 'A', while mid-latitude temperate zones are classified under letter 'C'. Geography syllabi emphasize the Köppen scheme because it correlates temperature and precipitation thresholds directly with natural vegetation distribution.