Geography of Cameroon
At 475,440 km2 (183,570 sq mi), Cameroon is the world's 53rd largest country. It is slightly larger than the nation of Sweden and the US state of California. It is comparable in size to Papua New Guinea. Cameroon's landmass is 472,710 km2 (182,510 sq mi), with 2,730 km2 (1,050 sq mi) of water.
The country is located in Central and West Africa, bordering the Bight of Biafra, between Equatorial Guinea and Nigeria.
Cameroon is sometimes described as "Africa in miniature" because it exhibits all the major climates and vegetation of the continent: mountains, desert, rain forest, savanna grassland, and ocean coastland. Cameroon can be divided into five geographic zones. These are distinguished by dominant physical, climatic, and vegetative features.
Natural regions
[edit]
Cameroon is one of the wettest parts of Africa and records Africa's second highest concentration of biodiversity.[1][2] In Cameroon forest cover is around 43% of the total land area, equivalent to 20,340,480 hectares (ha) of forest in 2020, down from 22,500,000 hectares (ha) in 1990. In 2020, naturally regenerating forest covered 20,279,380 hectares (ha) and planted forest covered 61,100 hectares (ha). Around 15% of the forest area was found within protected areas, for the year 2015, 100% of the forest area was reported to be under public ownership.[3][4]
Cameroon's coastal plain extends 20 to 80 kilometres (10 to 50 mi) inland from the Gulf of Guinea (part of the Atlantic Ocean) to the edge of a plateau. In the former western state, however, the mass of Mount Cameroon reaches almost to the sea. The plain is densely forested including areas of Central African mangroves especially around Douala and in the estuary of the Cross River on the border with Nigeria.
A recent global remote sensing analysis suggested that there were 643 km2 of tidal flats in Cameroon, making it the 39th ranked country in terms of tidal flat area.[5]
The low South Cameroon Plateau, rising from the coastal plain and dominated by tropical rain forest, has an average elevation of 500 to 600 metres (1,500 to 2,000 ft). It is less humid than the coast.
In western Cameroon is an irregular chain of mountains, hills, and plateaus that extends from Mount Cameroon almost to Lake Chad at the northern tip of the country. This region includes the Bamenda, Bamiléké, and Mambilla highlands. It also contains some of the country's most fertile soils, notably around volcanic Mt. Cameroon. This area of tropical forest has been categorised by the World Wildlife Fund as the Cameroonian Highlands forests ecoregion with Mount Cameroon considered separately because as an active volcano it has a distinct environment from the other mountains.
From the forested southern plateau the land rises northward to the grassy, rugged Adamaoua (Adamawa) highlands. Stretching across Cameroon from the western mountain area, the Adamaoua forms a barrier between the north and south. Its average elevation is 1,000 m (3,400 ft).
The southern savanna plain extends from the edge of the Adamaoua to Lake Chad. Its characteristic vegetation is scrub and grass. This is region of sparse rainfall and high median temperatures has been included as part of the East Sudanian savanna ecoregion.
Climate
[edit]The climate varies with terrain, from tropical along the coast to semiarid and hot in the north. Exceedingly hot and humid, the coastal belt includes some of the wettest places on earth. For example, Debundscha, at the base of Mt. Cameroon, has an average annual rainfall of 10,300 millimetres (405 in).[6]
| Climate data for Yaoundé | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 33 (91) |
33 (91) |
33 (91) |
36 (97) |
34 (93) |
32 (90) |
31 (88) |
34 (93) |
31 (88) |
33 (91) |
32 (90) |
32 (90) |
36 (97) |
| Mean daily maximum °C (°F) | 29.6 (85.3) |
31.0 (87.8) |
30.4 (86.7) |
29.6 (85.3) |
28.8 (83.8) |
27.7 (81.9) |
26.5 (79.7) |
26.5 (79.7) |
27.5 (81.5) |
27.8 (82.0) |
28.1 (82.6) |
28.5 (83.3) |
28.5 (83.3) |
| Daily mean °C (°F) | 24.6 (76.3) |
25.7 (78.3) |
25.4 (77.7) |
25.0 (77.0) |
24.5 (76.1) |
23.8 (74.8) |
23.2 (73.8) |
22.9 (73.2) |
23.4 (74.1) |
23.5 (74.3) |
23.9 (75.0) |
24.0 (75.2) |
24.2 (75.6) |
| Mean daily minimum °C (°F) | 19.6 (67.3) |
20.3 (68.5) |
20.3 (68.5) |
20.3 (68.5) |
20.2 (68.4) |
19.9 (67.8) |
19.9 (67.8) |
19.3 (66.7) |
19.3 (66.7) |
19.2 (66.6) |
19.6 (67.3) |
19.5 (67.1) |
19.8 (67.6) |
| Record low °C (°F) | 14 (57) |
15 (59) |
16 (61) |
15 (59) |
16 (61) |
15 (59) |
16 (61) |
16 (61) |
15 (59) |
15 (59) |
17 (63) |
16 (61) |
14 (57) |
| Average precipitation mm (inches) | 19.0 (0.75) |
42.8 (1.69) |
124.9 (4.92) |
171.3 (6.74) |
199.3 (7.85) |
157.1 (6.19) |
74.2 (2.92) |
113.7 (4.48) |
232.3 (9.15) |
293.6 (11.56) |
94.3 (3.71) |
18.6 (0.73) |
1,541.1 (60.69) |
| Average precipitation days (≥ 0.1 mm) | 3 | 4 | 12 | 14 | 17 | 14 | 11 | 12 | 20 | 23 | 11 | 3 | 144 |
| Average relative humidity (%) | 79.5 | 79.5 | 81.0 | 82.0 | 84.0 | 85.0 | 85.5 | 86.0 | 85.5 | 85.0 | 82.0 | 79.0 | 82.8 |
| Mean monthly sunshine hours | 172.0 | 179.0 | 169.9 | 164.5 | 166.2 | 126.0 | 96.1 | 86.2 | 102.4 | 130.2 | 167.1 | 181.4 | 1,741 |
| Source 1: World Meteorological Organization[7] NOAA (sun 1961–1990)[8] | |||||||||||||
| Source 2: BBC Weather[9] | |||||||||||||
| Climate data for Douala (1971-2000, extremes 1885-present) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 35.8 (96.4) |
39.8 (103.6) |
37.8 (100.0) |
36.4 (97.5) |
36.0 (96.8) |
39.0 (102.2) |
32.5 (90.5) |
32.0 (89.6) |
33.1 (91.6) |
35.0 (95.0) |
38.0 (100.4) |
38.0 (100.4) |
39.8 (103.6) |
| Mean daily maximum °C (°F) | 32.2 (90.0) |
32.8 (91.0) |
32.5 (90.5) |
32.1 (89.8) |
31.4 (88.5) |
29.9 (85.8) |
28.1 (82.6) |
27.7 (81.9) |
29.0 (84.2) |
29.8 (85.6) |
30.9 (87.6) |
31.7 (89.1) |
30.7 (87.3) |
| Daily mean °C (°F) | 27.8 (82.0) |
28.5 (83.3) |
28.2 (82.8) |
27.8 (82.0) |
27.3 (81.1) |
26.5 (79.7) |
25.4 (77.7) |
25.3 (77.5) |
25.9 (78.6) |
26.2 (79.2) |
27.1 (80.8) |
27.5 (81.5) |
27.0 (80.6) |
| Mean daily minimum °C (°F) | 23.4 (74.1) |
24.1 (75.4) |
23.9 (75.0) |
23.5 (74.3) |
23.2 (73.8) |
23.0 (73.4) |
22.7 (72.9) |
22.8 (73.0) |
22.8 (73.0) |
22.5 (72.5) |
23.2 (73.8) |
23.3 (73.9) |
23.2 (73.8) |
| Record low °C (°F) | 18.0 (64.4) |
19.0 (66.2) |
18.0 (64.4) |
18.3 (64.9) |
16.0 (60.8) |
18.2 (64.8) |
18.2 (64.8) |
19.0 (66.2) |
18.5 (65.3) |
16.8 (62.2) |
18.5 (65.3) |
18.0 (64.4) |
16.0 (60.8) |
| Average precipitation mm (inches) | 34.2 (1.35) |
54.5 (2.15) |
155.2 (6.11) |
241.2 (9.50) |
276.2 (10.87) |
354.1 (13.94) |
681.4 (26.83) |
687.5 (27.07) |
561.2 (22.09) |
406.6 (16.01) |
123.1 (4.85) |
27.5 (1.08) |
3,602.7 (141.84) |
| Average precipitation days (≥ 0.1 mm) | 5 | 9 | 15 | 18 | 21 | 23 | 27 | 30 | 26 | 24 | 12 | 5 | 215 |
| Average relative humidity (%) | 80 | 79 | 80 | 81 | 82 | 85 | 87 | 88 | 86 | 84 | 83 | 82 | 83 |
| Mean monthly sunshine hours | 193.3 | 179.1 | 171.9 | 176.5 | 175.8 | 123.1 | 72.0 | 53.2 | 90.8 | 131.2 | 162.1 | 184.2 | 1,713.2 |
| Source 1: World Meteorological Organization[10] Meteo Climat (record highs and lows)[11] | |||||||||||||
| Source 2: Deutscher Wetterdienst (humidity, 1957-1990),[12] NOAA (sun, 1961-1990)[13] | |||||||||||||
| Climate data for Garoua | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Mean daily maximum °C (°F) | 34.4 (93.9) |
37.3 (99.1) |
39.8 (103.6) |
39.5 (103.1) |
36.5 (97.7) |
33.2 (91.8) |
31.1 (88.0) |
30.7 (87.3) |
31.5 (88.7) |
34.2 (93.6) |
36.0 (96.8) |
34.8 (94.6) |
34.9 (94.8) |
| Daily mean °C (°F) | 26.0 (78.8) |
28.9 (84.0) |
32.2 (90.0) |
33.0 (91.4) |
30.7 (87.3) |
28.2 (82.8) |
26.6 (79.9) |
26.4 (79.5) |
26.7 (80.1) |
28.1 (82.6) |
27.3 (81.1) |
26.0 (78.8) |
28.3 (82.9) |
| Mean daily minimum °C (°F) | 17.5 (63.5) |
20.5 (68.9) |
24.7 (76.5) |
26.4 (79.5) |
24.9 (76.8) |
23.2 (73.8) |
22.2 (72.0) |
22.0 (71.6) |
21.9 (71.4) |
22.2 (72.0) |
19.2 (66.6) |
17.3 (63.1) |
21.8 (71.2) |
| Average rainfall mm (inches) | 0.0 (0.0) |
0.0 (0.0) |
2.0 (0.08) |
44.1 (1.74) |
108.4 (4.27) |
134.8 (5.31) |
205.3 (8.08) |
247.9 (9.76) |
190.0 (7.48) |
63.3 (2.49) |
1.6 (0.06) |
0.0 (0.0) |
997.4 (39.27) |
| Average rainy days (≥ 1.0 mm) | 0 | 0 | 1 | 5 | 9 | 11 | 14 | 17 | 24 | 6 | 1 | 0 | 88 |
| Mean monthly sunshine hours | 275.0 | 252.6 | 260.1 | 245.4 | 256.7 | 224.4 | 194.0 | 187.2 | 204.5 | 261.5 | 279.2 | 286.5 | 2,927.1 |
| Source: NOAA[14] | |||||||||||||
Biodiversity
[edit]The wide diversity of climates and natural regions of Cameroon, as coastline, mountains, savanna, deserts, and tropical forests, allows that the country counts with rich biodiversity. Twenty-two million hectares from the Congo Basin forest ecosystem are located in Cameroon, where 9,000 plant species, 900 bird species, and 320 mammals species live,[15] included 156 endemic plants, eight endemic birds, and 14 endemic mammals. The border with Nigeria has one of the highest concentration of biodiversity in Africa.[16]
As part of the conservation efforts to protect threatened natural resources, Cameroon has established protected areas since 1932, included national parks, wildlife sanctuaries, faunal reserves, and one flora sanctuary.[17]
Cameroon had a 2018 Forest Landscape Integrity Index mean score of 8.00/10, ranking it 29th globally out of 172 countries.[18]
Rivers
[edit]
The country has four patterns of drainage. In the south, the principal rivers flow southwestward or westward directly to the Gulf of Guinea – the Wouri, and lesser Dibamba, Bimbia and Mungo to the Cameroon estuary near Douala; Sanaga, Nyong, and Ntem further south along the coast; Akwayafe and Manyu (which joins Nigerian Cross), and the lesser Ndian and Meme north of the coast.[19] The Dja and Kadeï, however, drain southeastward into the Congo River. In northern Cameroon, the Benoué River (Benue) runs north and west, eventually into the Niger, while the Logone River flows northward into Lake Chad.
Some of the borders of Cameron follow rivers, including the Aïna, Akwayafe, and Ntem or Campo.
Data
[edit]Location: Central Africa, bordering the Bight of Biafra, between Equatorial Guinea and Nigeria
Geographic coordinates: 6°N 12°E / 6°N 12°E
Continent: Africa
Area:
total:
475,440 km2 (183,570 sq mi)
land:
472,710 km2 (182,510 sq mi)
water:
2,730 km2 (1,050 sq mi)
country rank in the world: 53rd
Area – comparative:
- Australia comparative: slightly more than twice the size of Victoria
- Canada comparative: slightly smaller than the Yukon
- United Kingdom comparative: slightly less than twice the size of the United Kingdom
- United States comparative: slightly more than 1/10 larger than California
- EU comparative: slightly smaller than Spain; slightly larger than Sweden
Land boundaries:
total:
5,018 km
border countries:
Central African Republic 901 km, Chad 1,116 km, Republic of the Congo 494 km, Equatorial Guinea 183 km, Gabon 349 km, Nigeria 1,975 km
Coastline: 402 km
Maritime claims:
territorial sea:
12 nmi (22.2 km; 13.8 mi)
Terrain: diverse, with coastal plain in southwest, dissected plateau in center, mountains in west, plains in north
Elevation extremes:
lowest point:
Atlantic Ocean 0 m
highest point:
Fako (on. Mt. Cameroon) 4,095 m
Natural resources: petroleum, bauxite, iron ore, timber, hydropower
Land use:
arable land:
13.12%
permanent crops:
3.28%
other:
83.61% (2012)
Irrigated land: 256.5 km2 (2003)
Total renewable water resources: 285.5 km3 (2011)
Freshwater withdrawal (domestic/industrial/agricultural):
total:
0.97 km3/yr (23%/10%/68%)
per capita:
58.9 m3/yr (2005)
Natural hazards: Recent limnic eruptions with release of carbon dioxide:
- from Lake Monoun, 15 August 1984, killing 37
- from Lake Nyos, 21 August 1986, killing as many as 1,800
Environment – current issues: water-borne diseases are prevalent; deforestation; overgrazing; desertification; poaching; overfishing
Environment – international agreements:
party to:
Biodiversity, Climate Change, Desertification, Endangered Species, Hazardous Wastes, Law of the Sea, Ozone Layer Protection, Tropical Timber 83, Tropical Timber 94, Wetlands, Whaling
signed, but not ratified:
Nuclear Test Ban
Geography – note: sometimes referred to as 'the hinge of Africa;' throughout the country there are areas of thermal springs and indications of current or prior volcanic activity; Mount Cameroon, the highest mountain in Sub-Saharan west Africa, is an active volcano
Extreme points
[edit]This is a list of the extreme points of Cameroon, the points that are farther north, south, east or west than any other location.
- Northernmost point – unnamed peninsula jutting into Lake Chad, Far North Region
- Easternmost point – unnamed location on the border with the Republic of Congo in the Sangha River opposite the Congolese town of Bomassa, East Region
- Southernmost point – unnamed headland at the confluence on the Sangha River and the Ngoko River immediately north of the Congolese town of Ouesso, East Region
- Westernmost point – unnamed point on Akwabana Island, Southwest Region
Gallery
[edit]-
Cameroon map of Köppen climate classification. -
Countryside near Ngaoundal in Cameroon's Adamawa Region. -
A view of Wouri River with a transport vessel in the Littoral Region of Cameroon
See also
[edit]
Notes
[edit]- ^ "Cameroon". Wildlife Conservation Society. Retrieved 14 February 2013.
- ^ Wilkie, D. S.; Hakizumwami, E.; Gami, N.; Difara, B. (2001). "Beyond Boundaries:Regional Overview of Transboundary Natural Resource Management in Central Africa". Table 1 World Wildlife Organization. World Wildlife Organization. Retrieved 14 February 2013.
- ^ Terms and Definitions FRA 2025 Forest Resources Assessment, Working Paper 194. Food and Agriculture Organization of the United Nations. 2023.
- ^ "Global Forest Resources Assessment 2020, Cameroon". Food Agriculture Organization of the United Nations.
- ^ Murray, N.J.; Phinn, S.R.; DeWitt, M.; Ferrari, R.; Johnston, R.; Lyons, M.B.; Clinton, N.; Thau, D.; Fuller, R.A. (2019). "The global distribution and trajectory of tidal flats". Nature. 565 (7738): 222–225. doi:10.1038/s41586-018-0805-8. PMID 30568300. S2CID 56481043.
- ^ Highest Average Annual Precipitation Extremes. Global Measured Extremes of Temperature and Precipitation, National Climatic Data Center. 9 August 2004. Last accessed 7 November 2006.
- ^ "World Weather Information Service - Yaounde". World Meteorological Organization. Retrieved 7 December 2012.
- ^ "Yaounde Climate Normals 1961–1990". National Oceanic and Atmospheric Administration. Retrieved 10 September 2015.
- ^ "Average Conditions Yaounde, Cameroon". BBC Weather. Retrieved 7 December 2012.
- ^ "World Weather Information Service – Douala". World Meteorological Organization. Retrieved 13 June 2016.
- ^ "Station Douala" (in French). Meteo Climat. Retrieved 13 June 2016.
- ^ "Klimatafel von Douala (Duala), Observatorium / Kamerun" (PDF). Baseline climate means (1961-1990) from stations all over the world (in German). Deutscher Wetterdienst. Retrieved 13 June 2016.
- ^ "Douala Climate Normals 1961-1990". National Oceanic and Atmospheric Administration. Retrieved 13 June 2016.
- ^ "Garoua Climate Normals 1961–1990". National Oceanic and Atmospheric Administration. Retrieved 8 March 2015.
- ^ "Cameroon". Cameroon. Retrieved 29 September 2020.
- ^ "Africa: Cameroon, Nigeria". Retrieved 29 September 2020.
- ^ Mesmin Tchindjang; Clair Réné Banga; Appolinaire Nankam; Jean Sylvestre Makak (2001). "Mapping of Protected Areas Evolution in Cameroon from the Beginning to 2000: Lesson to Learn and Perspectives" (PDF). Table 1 World Wildlife Organization. World Wildlife Organization. Archived (PDF) from the original on 9 October 2022. Retrieved 14 February 2013.
- ^ Grantham, H. S.; Duncan, A.; Evans, T. D.; Jones, K. R.; Beyer, H. L.; Schuster, R.; Walston, J.; Ray, J. C.; Robinson, J. G.; Callow, M.; Clements, T.; Costa, H. M.; DeGemmis, A.; Elsen, P. R.; Ervin, J.; Franco, P.; Goldman, E.; Goetz, S.; Hansen, A.; Hofsvang, E.; Jantz, P.; Jupiter, S.; Kang, A.; Langhammer, P.; Laurance, W. F.; Lieberman, S.; Linkie, M.; Malhi, Y.; Maxwell, S.; Mendez, M.; Mittermeier, R.; Murray, N. J.; Possingham, H.; Radachowsky, J.; Saatchi, S.; Samper, C.; Silverman, J.; Shapiro, A.; Strassburg, B.; Stevens, T.; Stokes, E.; Taylor, R.; Tear, T.; Tizard, R.; Venter, O.; Visconti, P.; Wang, S.; Watson, J. E. M. (2020). "Anthropogenic modification of forests means only 40% of remaining forests have high ecosystem integrity - Supplementary Material". Nature Communications. 11 (1): 5978. doi:10.1038/s41467-020-19493-3. ISSN 2041-1723. PMC 7723057. PMID 33293507.
- ^ Gabche, C E; Smith, S V. "Cameroon Estuarine Systems". Archived from the original on 23 August 2011. Retrieved 25 October 2012.
References
[edit]
This article incorporates public domain material from The World Factbook. CIA.
