Search results
Results From The WOW.Com Content Network
Amazon rainforest, Manaus, Brazil. Tropical rainforests have a type of tropical climate (at least 18 C or 64.4 F in their coldest month) in which there is no dry season—all months have an average precipitation value of at least 60 mm (2.4 in). There are no distinct wet or dry seasons as rainfall is high throughout the months.
Amazon River rain forest in Peru. Tropical rainforests are hot and wet. Mean monthly temperatures exceed 18 °C (64 °F) during all months of the year. [4] Average annual rainfall is no less than 1,680 mm (66 in) and can exceed 10 m (390 in) although it typically lies between 1,750 mm (69 in) and 3,000 mm (120 in). [5]
In order to be defined as a rainforest, the forest must average at least 140 cm (55 in) of precipitation annually and a temperate rainforest as opposed to a tropical rainforest is defined by a mean annual temperature between 4 and 12 degrees Celsius (39 and 54 degrees Fahrenheit).
They are generally found at altitudes ranging from 600 to 1,000 m (2,000 to 3,300 ft), and receive 2,000 to 6,000 mm (79 to 236 in) of average annual rainfall. [15] [16] [17] Despite being located in the temperate zone, the Azores rainforest is similar in many ways to the cloud forest environments of the tropics and subtropics.
[citation needed] The rainforest receives an average of 140 inches (360 cm) of annual precipitation—among the rainiest places in the United States. [1] [2] The Hoh River valley was formed thousands of years ago by glaciers and is the ancestral home of the Hoh people. Within Olympic National Park, the forest is protected from commercial ...
The tropical rainforest climate differs from other subtypes of tropical climates as it has more kinds of trees due to its precipitation. [12] The large number of trees contribute back to the humidity of the climate because of the transpiration, which is the process of water evaporated from the surface of living plants to the atmosphere.
Rain forests are characterized by high rainfall, with definitions setting minimum normal annual rainfall between 1,750 and 2,000 mm (69 and 79 in). [98] A tropical savanna is a grassland biome located in semi-arid to semi-humid climate regions of subtropical and tropical latitudes, with rainfall between 750 and 1,270 mm (30 and 50 in) a year.
This results in a substantially lower average rainfall in July and August in the southern rainforest patches than in the rest of the year, leading to a generally drier summer than in the North where the summers are cool and wet. [13] In general, mean annual precipitation ranges between 700 and 1,500mm. [14]