Description

The distribution for the two thermal aspects of Thornthwaite's climate classification system is portrayed: thermal efficiency (a measure of heat received at the ground) shown as coloured areas in five classes; and summer concentration of thermal efficiency shown by linework separating the eight classes. Climatic data for 1941 to 1970 used for both aspects. Companion sheet to Climatic Regions – Thornthwaite Classification – Moisture Regions.