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This drier variation of the tropical savanna climate is typically found adjacent to regions with hot semi-arid (BSh) climates, such as seen in places like India, the Sahel region in Africa and Brazil. On the other extreme, the climate features a lengthy dry season followed by a short but extremely rainy wet season.
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 modern, arid Sahara. The Sahara was not a desert during the African humid period. Instead, most of northern Africa was covered by grass, trees, and lakes. The African humid period (AHP; also known by other names) is a climate period in Africa during the late Pleistocene and Holocene geologic epochs, when northern Africa was wetter than today.
The onset and termination of the African Humid Period both occurred when the insolation cycle reached a value of roughly 4.2% higher than today. However, shifts in the insolation cycle are too gradual to cause abrupt climate transitions like those seen at the onset and termination of the African Humid Period all on their own.
The climate is a tropical savanna climate and a hot semi-arid climate (Köppen climate classification Aw and BSh) with a dry season and a wet season and the temperature being warm and hot year-round. Annual rainfall ranges from 1000 mm in the south to 600 mm in the north on the edge of the Sahel.
The tropical savannah climate has a mean annual rainfall of about 1200mm or below, while the monthly mean temperature ranges from 22 °C (72 °F) during nighttime to 33 °C (91 °F) at daytime. [2] Lagos State is an example of a state with this type of climate. However, most central and southern parts of the nation also have this climate.
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The Köppen climate classification is the most widely used climate classification system. [2] It defines a tropical climate as a region where the mean temperature of the coldest month is greater than or equal to 18 °C (64 °F) and does not fit into the criteria for B-group climates, classifying them as an A-group (tropical climate group). [3]