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Beyond Köppen-Geiger Climate Classification System: Extensions and Alternatives
For a while now, I've been using the Kö ppen-Geiger climate classification system for my climate tutorials and explorations, for muc...
Arid B zones are generally assumed to have too little water for sustained growth anyway, so growing season concerns are ignored, but a 0°C threshold for the coldest month is still used to divide hot (BXh) and cold (BXk) varieties to reflect different frost tolerances. Monsoon (Xw) zones have wet summers, ensuring plentiful moisture levels during the growing season, even to the point of being hazardous, encouraging adaptations to tolerate flooding or avoid collecting water on leaves. Exactly how to handle cases where different parameters might not line up neatly into these categories is often left a bit ambiguous, but the clearest procedure I've seen is to essentially plot the position first on the PETR/precipitation grid and then project from that point directly up or down to the appropriate level on the biotemperature axis.
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