amount of rainfall in forests
In an average year the climate in a tropical rain forest is very humid because of all the rainfall. A tropical rainforest gets about 150 cm of rain per year. It gets lots of rain because it is very hot and wet in rain forests. The annual precipitation of a rain forest is greater than 150 cm. In a rain forest there is a short dry season. In only a month the rainforest receives 4 inches of rain. The rain forest climate is different from a lot of other climates. In other climates, the evaporation is carried away to fall as rain in far off areas, but in the rain forests, 50 percent of the precipitation comes from its own evaporation. For example, increasing atmospheric carbon dioxide could lead to larger, denser forests that store more carbon, he said, but it could also affect the amount of atmospheric moisture they produce — and, therefore, the amount of rainfall over the forest and downwind. “Increased carbon dioxide reduces the need for plants to keep their stomata open. The tropical rain forest can be found in three major geographical areas around the world. 1  Central America in the Amazon river basin. 2  Africa - Zaire basin, with a small area in West Africa; also eastern Madagascar. 3  Indo-Malaysia - west coast of India, Assam, Southeast Asia, New Guinea and Queensland, Australia. Annual precipitation over 140 cm (55 in) Mean annual temperature is between 4 and 12 °C (39 and 54 °F). However, required annual precipitation depends on factors such as distribution of rainfall over the year, temperatures over the year and fog presence, and definitions in other countries differ considerably. The temperate rain forests of South America are located on the Pacific coast of southern Chile, on the west-facing slopes of the southern Chilean coast range, and the Andes Mountains in both Chile and Argentina down to the southern tip of South America, and are part of the Neotropic ecozone. Emergent trees are spaced wide apart, and are 100 to 240 feet tall with umbrella-shaped canopies that grow above the forest. 1  Because emergent trees are exposed to drying winds, they tend to have small, pointed leaves. Some species lose their leaves during the brief dry season in monsoon rainforests. LIMA, Peru (10 April 2014) — Current climate models appear to underestimate the full impact of forest vegetation on rainfall patterns, indicating that the potential consequences of land-cover change on global temperature increase cannot be assessed with certainty, new research shows. Report: Forests may play bigger role in rainfall than estimated By 2050, the tropics could see a 12 percent and 21 percent decline in wet and dry season precipitation. Share Tweet 0 Shares The tropical rain forest is a forest of tall trees in a region of year-round warmth. An average of 50 to 260 inches (125 to 660 cm.) of rain falls yearly. Rain forests belong to the tropical wet climate group. The temperature in a rain forest rarely gets higher than 93 °F (34 °C) or drops below 68 °F (20 °C); average humidity is between 77 and 88%; rainfall is often more than 100 inches a year. There is usually a brief season of less rain.
The tropical rain forest is a forest of tall trees in a region of year-round warmth. An average of 50 to 260 inches of rain falls yearly.