Type

Name (nominal vegetation type)

Criteria

1. Af

Tropical wet (Tropical evergreen rainforest)

Tmim > 18˚C, not BS or BW, Pmim > 6

2. Am

Troipical moist (Tropical evergreen rainforest)

Tmim > 18˚C, not BS or BW, 6 > Pmim > (250 - Pyear)/25

3. Aw

Troipical dry (Savanna/Woodland)

Tmim > 18˚C, not BS or BW, 6 (250 - Pyear)/25 > Pmim

4. BS

Semiarid (Bush or grassland)

2 (Tave + Poff) > Pyear > (Tave + Poff) Poff = 0, >30% of rain in winter Poff = 7, no wet season Poff = 14, >30% of rain in summer

5. BW

Desert (waste to cactus/seasonal vegetation)

(Tave + Poff) > Pyear

6. Cs

Temeprate winter wet (Evergreen broadleaf forest)

18˚C > Tmim > −3˚C, not BS or BW, Pmax > #3 Pmim winter max., summer mim.

7. Cfa

Hot temperate moist (Broadleaf forest)

18˚C > Tmim > −3˚C, not BS or BW, Not Cs or Cw, Tmax > 22˚C

8. Cfb

Warm temperate moist (Broadleaf forest)

18˚C > Tmim > −3˚C, not BS or BW, Not Cs or Cw, Tmax < 22˚C

4-months warmer than 10˚C

9. Cfc

Cold temperate moist (Needle-tree forest)

18˚C > Tmim > −3˚C, not BS or BW, Not Cs or Cw, Tmax < 22˚C

Less than 4 months warmer than 10˚C

10. Cw

Temperate summer wet (evergreen forest)

18˚C > Tmim > −3˚C, not BS or BW, Pmax > 10 Pmim, summer max., winter mim

11. Dab

Colder winters//warmer summers (Deciduous forest)

Tmax > 10˚C, −3˚C > Tmim, not BS or BW, 4+ months warmer than 10˚C

12. Dc

Cold winters/cool summers (Evergreen forest)

−3˚C > Tmim, not BS or BW, 4-months warmer than 10˚C

13. Et

Tundra (Tundra/dwarf trees, mosses)

10˚C > Tmax > 0˚C, Tmim < −3˚C

14, Ef

Polar desert (Pernanent ice or rock, litle plant life)

Tmax < 0˚C