Tropical Rainforest (Af)

Lat/Long = 3.39^o S, 73.18^o W
Average Annual Temperature (^oC) = 26.1
Annual Temperature Range (^oC) = 1.4
Total Annual Precipitation (mm) = 2879.2
Summer Precipitation (mm) =1583
Winter Precipitation (mm) = 1294.7

Bromelias with emerging crown
(Peru)

(Photo credit: A Brack FAO 18535)
(Used with permission)

Geographic Distribution

• Amazon Basin,

• Congo River Basin,

• East coast of Central America,

• East coast and interior of Brazil,

• East coast of Madagascar,

• Malaysia,

• Indonesia,

• Philippines.

Controlling Factors

• High year-round insolation and precipitation of ITCZ.

• Rising air along trade wind coasts.

• mE air masses.

Characteristics

• Constant high temperatures.

• "Equal" day length.

• Lowest annual temperature range of any climate.

• Evenly distributed, heavy precipitation.

• Much cloud cover and high humidity.