648,280.5 km2 (250,302.5 sq mi)[2] to 651,915 km2 (251,706 sq mi)[1]
Discharge
• location
Near mouth
• average
(Period: 1971–2000)5,630.4 m3/s (198,840 cu ft/s)[2]
(Period: 1911–1994)5,936 m3/s (209,600 cu ft/s)[1]
• minimum
1,000 m3/s (35,000 cu ft/s)
• maximum
15,500 m3/s (550,000 cu ft/s)
Discharge
• location
Bangui (550 km upstream of mouth; Basin size: 493,266.9 km2 (190,451.4 sq mi)
• average
(Period: 1971–2000)4,004 m3/s (141,400 cu ft/s)[2]
(Period: 1911–1994)4,092 m3/s (144,500 cu ft/s)[4] 4,000 m3/s (140,000 cu ft/s)[3]
• minimum
800 m3/s (28,000 cu ft/s)[3]
(Period: 1911–1994)930 m3/s (33,000 cu ft/s)[4]
• maximum
11,000 m3/s (390,000 cu ft/s)[3]
(Period: 1911–1994)9,115 m3/s (321,900 cu ft/s)[4]
Discharge
• location
Yakoma (1,120 km upstream of mouth; Basin size: 308,763.1 km2 (119,214.1 sq mi)
• average
(Period: 1971–2000)2,799 m3/s (98,800 cu ft/s)[2]
Basin features
Progression
Congo → Atlantic Ocean
River system
Congo River
Tributaries
• left
Uele, Lua, Giri
• right
Mbomou, Kotto, Ouaka, Mpoko, Lobaye
The Ubangi River (/(j)uːˈbæŋɡi/), also spelled Oubangui, (Swahili: Mto Ubangi, French: Fleuve Oubangui) is the largest right-bank tributary of the Congo River in the region of Central Africa. It begins at the confluence of the Mbomou (mean annual discharge 1,350 m3/s) and Uele Rivers (mean annual discharge 1,550 m3/s) and flows west, forming the border between Central African Republic (CAR) and Democratic Republic of the Congo. Subsequently, the Ubangi bends to the southwest and passes through Bangui, the capital of the CAR, after which it flows south – forming the border between Democratic Republic of the Congo and Republic of the Congo. The Ubangi finally joins the Congo River at Liranga.
The Ubangi's length is about 1,060 km (660 mi). Its total length with the Uele, its longest tributary, is 2,270 km (1,410 mi). The Ubangi's drainage basin is about 651,915 km2 (251,706 sq mi). Mean annual discharge at mouth 5,936 m3/s. Its discharge at Bangui ranges from about 800 m3/s (28,000 cu ft/s) to 11,000 m3/s (390,000 cu ft/s), with an average flow of about ~4,000 m3/s (140,000 cu ft/s).[3] It is believed that the Ubangi's upper reaches originally flowed into the Chari River and Lake Chad before being captured by the Congo in the early Pleistocene.[5]
Together with the Congo River, it provides an important transport artery for river boats between Bangui and Brazzaville. From its source to 100 km (62 mi) below Bangui, the Ubangi defines the boundary between the Central African Republic and the Democratic Republic of the Congo (DRC). Thereafter, it forms the boundary between the DRC and the Republic of Congo until it empties into the Congo River.
Transaqua scheme (in red)
^ abcBecker, M.; Papa, F.; Frappart, F.; Alsdorf, D.; Calmant, S.; Da Silva, J. Santos; Prigent, C.; Seyler, F. (2018). "Satellite-based estimates of surface water dynamics in the Congo River Basin". International Journal of Applied Earth Observation and Geoinformation. 66: 196–209. Bibcode:2018IJAEO..66..196B. doi:10.1016/j.jag.2017.11.015. S2CID 6873734.
^ abcd"Congo River".
^ abcdBossche, J.P. vanden; G. M. Bernacsek (1990). Source Book for the Inland Fishery Resources of Africa, Volume 1. Food and Agriculture Organization of the United Nations. p. 338. ISBN 978-92-5-102983-1.
^ abc"Zaire-Bangui".
^See Cooper, John E. and Hull, Gordon; Gorilla Pathology and Health: With a Catalogue of Preserved Materials, p. 371 ISBN 9780128020395
The UbangiRiver (/(j)uːˈbæŋɡi/), also spelled Oubangui, (Swahili: Mto Ubangi, French: Fleuve Oubangui) is the largest right-bank tributary of the Congo...
The Mpoko River is a river in Central African Republic It is a tributary of the Oubangui River. The river is located near Bangui, the capital of the Central...
equatorial forest zone in the south. Two-thirds of the country is within the UbangiRiver basin (which flows into the Congo), while the remaining third lies in...
Ubangi Province in the north of Zaire UbangiRiver, tributary of the Congo River in the region of Central Africa Ubangi-Shari, a French colony which became...
water from the UbangiRiver to the Chari to revitalize Lake Chad, which would constitute a reversal of the capture of the upper Ubangi from the Chari...
the river look red from the iron oxide contaminants in the river.[citation needed] Aerial imagery showing the red color of the river. "UbangiRiver". Encyclopædia...
Republic of the Congo (DRC). The Mbomou merges with the Uele River to form the UbangiRiver. The Ubangi, a tributary of the Congo, also serves as part of the...
named after its location on the northern bank of the UbangiRiver (French: Oubangui); the Ubangi itself was named from the Bobangi word for the "rapids"...
from the Ubangi. The Lake Chad Basin Commission, however, judged that the project, which involved pumping water upwards from the UbangiRiver, was not...
the UbangiRiver and running into the Pool Malebo (Stanley Pool). Kinshasa (formerly Léopoldville) and Brazzaville are on opposite sides of the river at...
wretch is slain. This custom, reported around both the central Congo River and the Ubangi in the north, seem to have been motivated by a desire to get fresh...
using the Ubangiriver to reach the coast. During the 18th century Bandia-Nzakara peoples established the Bangassou Kingdom along the Ubangiriver. Population...
Madeira river basin at Rivers Network. Amur river basin at Rivers Network Lower, Middle and Upper Euphrates river basin at Rivers Network Dnieper river : Watersheds...
ground nests, characteristic of gorillas rather than chimpanzees, in swampy river beds. In 2001, an international team of scientists, including George Schaller...
Central Africa. It lies along the Bili river, a tributary of the Ubangiriver. It lies 50 km south of the Mbomou river, which forms the border with the Central...
both sides of the UbangiRiver and Congo River. As the Bobangi people came to dominate the slave trade along the upper Congo River in the late 18th century...
conflict centered in the town of Dongo, on the left bank of the UbangiRiver in Sud-Ubangi District, Democratic Republic of the Congo. Violence initially...
wholly Ngbandi. Sango was used as a lingua franca for trade along the UbangiRiver before French colonisation in the late 1800s and has since expanded as...
1960s, a plan was proposed to divert the UbangiRiver into Lake Chad. The copious amount of water from the Ubangi would revitalise the dying Lake Chad and...
and Ebola to the west and the UbangiRiver further north. Smaller populations exist west and south of the Congo River. It is also common in the Wamba...
Various reports from the late 19th century indicate that around the UbangiRiver in the north of the Congo Basin, slaves were frequently exchanged against...
Province, Iran Giri River, a tributary of the Yamuna River in northern India Giri or Ngiri River, a tributary of the UbangiRiver in the Democratic Republic...
The Ngbandi are an ethnic group from the region of the upper UbangiRiver; they inhabit the northern Democratic Republic of the Congo (DRC) and southern...
Lobaye River (or Lobay, French: Rivière Lobaye) is a river of the Central African Republic, a right tributary of the UbangiRiver. The Lobaye River forms...
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