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Variations in the strength of the North African Monsoon have been found to be strongly related to the stronger 23,000-year processional cycle. [ 2 ] [ 7 ] [ 8 ] The relationship between the precession cycle and the strength of the North African Monsoon exists because procession affects the amount of insolation received in a given hemisphere.
The African humid period was caused by a stronger West African Monsoon [125] directed by changes in solar irradiance and in albedo feedbacks. [17] These led to increased moisture import from both the equatorial Atlantic into West Africa, as well as from the North Atlantic and the Mediterranean Sea towards the Mediterranean coasts of Africa. [126]
The major monsoon systems of the world consist of the West African, Asian–Australian, the North American, and South American monsoons. The term was first used in English in British India and neighboring countries to refer to the big seasonal winds blowing from the Bay of Bengal and Arabian Sea in the southwest bringing heavy rainfall to the area.
Almost whole North Africa is semi-arid, arid or hyper-arid, containing the Sahara Desert which is the largest hot desert in the world, while central Africa (known as Sub-Saharan Africa) sees an annual rainy season regulated by the movement of the Intertropical Convergence Zone or monsoon trough, though the Sahel Belt located at the south of the ...
Rainfall north of the equator in Africa typically increases from July through September as the West African Monsoon kicks into gear. ... Farther north, typically drier areas, including parts of ...
A monsoon is a shift in seasonal wind pattern that brings on a very rainy period. In the U.S., the desert southwest, the summer monsoon season usually begins around mid-June. This occurs when ...
The climate of Africa is a range of climates such as the equatorial climate, the tropical wet and dry climate, the tropical monsoon climate, the semi-arid climate (semi-desert and steppe), the desert climate (hyper-arid and arid), the humid subtropical climate, and the subtropical highland climate. Temperate climates are rare across the ...
The climate of the Sahara has undergone enormous variations over the last few hundred thousand years, [49] oscillating between wet (grassland) and dry (desert) every 20,000 years [50] (a phenomenon believed to be caused by long-term changes in the North African climate cycle that alters the path of the North African Monsoon, caused by an ...