The Greeks generally adopted the zones of Par me nides

Ptolemy, 150 A.D., Al Istakhri, 950, and Paul Heylyn, 1626. adopted climatic zones such that the average difference in the ( a ) Zone of ocean trades, with very rare rainfalls. (b) Region of equatorial rains, including the zone of calms. (c) Region of rain prevailing throughout the year. (d) Sub-tropical zone, with rainle summers. (e) Zone of the fall and winter rains of middle latitudes. (f) Zone of summer rainfall of middle latitudes. (g) Zone of equal distribution of rain throughout all seasons. ( h ) Polar region, with light snows in winter. (i) Deserts and semi-deserts, with an annual precipitation le than 250 mm. (10 in.). ( k ) Regions of the Australian monsoons. ( 1 ) Regions of the Asiatic monsoons. ( m ) Regions of the African monsoons. Supan's cla ification, based on the study of I sot alan to san, is ( a ) Marine and equatorial climates whose temperature variations are le than 15° С. (b) Transition climate, variations greater than 15° C. and le than 20° С. (c) Land climate, variations greater than 20° C. and le than 40° C. (d) Extreme continental climate, variations greater than 40° C.