Koeppen reported a classification system for climate in 1884. This has been subsequently modified, with the Koeppen-Geiger system often used.
|
Main Category
|
Letter
|
|
tropical
|
A
|
|
arid
|
B
|
|
temperate
|
C
|
|
continental
|
D
|
|
polar
|
E
|
Alpine climate is a sixth category that may be added.
|
Category
|
Second Level
|
Letter
|
|
tropical
|
rainforest
|
f
|
|
|
monsoon
|
m
|
|
|
savanna, dry winter
|
w
|
|
|
savanna, dry summer
|
s
|
|
arid
|
desert
|
W
|
|
|
steppe
|
S
|
|
temperate and continental
|
dry winter
|
w
|
|
|
dry summer
|
s
|
|
|
no dry season
|
f
|
|
polar
|
tundra
|
T
|
|
|
eternal frost
|
F
|
A third letter is used for arid, temperate and continental to designation hot, warm or cold.
