Rainforests located under or near the path of the ITCZ experience their wettest seasons when this zone shifts overhead, a dynamic that brings together moisture from oceans thousands of kilometers away. Topography Situational Mountains force moist air to rise, cooling it and causing orographic rainfall.
Meteorological Processes Behind Downpours
This convergence forces warm, moist air to rise, leading to widespread cloudiness and frequent, intense rainfall. Transpiration High Recycles moisture back into the atmosphere, sustaining local humidity.
The Intertropical Convergence Zone (ITCZ) is a belt of low pressure where the trade winds from the Northern and Southern Hemispheres meet. Through a process known as transpiration, trees and plants draw water from the soil and release it as vapor through their leaves.
Meteorological Processes Behind Downpours
In a mature rainforest, this biological pump is so powerful that the forest generates a significant portion of the moisture in the air above it. Because rainforests lie close to the equator, they receive intense, direct sunlight almost every day of the year.
More About Why does rainforest rain so much
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