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Published: 20-09-2019

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What mechanisms produce high precipitation in the tropics?

“The International Circulation can be described as the worldwide technique of winds where the necessary transport of heat from tropical to polar latitudes is achieved,” ( atmospheric heating and circulation patterns are controlled by 3 cells of air flow in between the Earth’s poles and the equator. These 3 cells are the Polar Cell, Ferrel Cell, and the Hadley Cell. The polar cell originates at decrease latitudes, its warm air rises and move to greater altitudes, where the cooled air will descend due to the higher pressure. The Ferrel cells winds are complicated it is a boomerang flow of air at high altitudes towards the tropics that join sinking air at decrease latitudes close to the Hadley cell. When humid and warm air from both hemispheres brought by trade winds joins in the Intertropical Convergence Zone the low-stress areas move up to 30 degrees latitude until it descends in higher-stress regions which then causes convection in the atmosphere resulting in higher precipitation in the tropics. This cycling of winds is named Hadley cell.

What mechanisms produce high precipitation in the tropics?

High precipitation occurs in zones where there is the continual and speedy ascension of air masses. In the tropics, there is a convergence of trade winds in the ITCZ which ascend due to the low pressure. Also, the evaporation rates are higher. Thus, moist air rises as it cools. On the other hand, warm air is able to condense and hold a lot more water top to high precipitation (Schumacher, 2003).

What mechanisms create high precipitation at temperate latitude?

It is at the temperate latitudes where the convergence of moist subtropical air and cold polar air causes forced condensation. Also, the area receives the most intense sun radiation per unit region, therefore, enhanced evaporation. In addition to, the low-stress technique causes a rise in far more air for precipitation. Clouds build up due to the increasing air that picks up moisture from the dry land at decrease latitudes (Schumacher, 2003).

What mechanisms produce low precipitation in the tropics?

In tropical zone, low precipitation can happen as a result of warm, prevailing winds being impeded by mountain ranges because the mountains force the moisture in those winds to come down on the mountainside that is blocking the winds as rain leaving the other side with low precipitation. When air rises moisture is picked up from dry regions at reduce latitudes it causes clouds to build up bringing a higher quantity of precipitation considering that precipitation is largely involved with temperature that means the reduce the temperature the significantly less moisture it can hold since it is quite warm close to the tropics the air moisture will have to interact with colder climate in order to lose it. Consequently causing the precipitation to keep low. This levitation is identified as rain shadow.

The tropical dry forests and savanna biomes are situated in the Inter-Tropical Convergence Zone (ITCZ) exactly where high precipitation is observed, due to the amount of sunlight near the equator. Tropical savannas are covered with grassland and a handful of scattered trees whilst tropical dry forests have more trees that are green throughout rainy seasons and withered in dry seasons. The two biomes are generally warm all through the year as the wind movement result in shifting of Inter Tropical Convergence Zone (ITCZ). The sunlight causes air to rise which causes the pressure to drop, and makes the warm low-stress air to rise and condenses into clouds higher precipitation occurs. The ITCZ shifts in between Northern and Southern hemispheres causing seasonal variations in pressure and hence precipitation. In the dry season, nonetheless, the ITCZ moves to the warm and dry trade winds flow to the other side of the equator.
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