Morphological varieties of the channel and the conditions of their formation in the Niger River (West Africa)

N. N. Nazarov; B. Diarra; D. A. Dremin

doi:10.31857/S0435428121020085

Morphological varieties of the channel and the conditions of their formation in the Niger River (West Africa)

N. N. Nazarov, B. Diarra, D. A. Dremin

https://doi.org/10.31857/S0435428121020085

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Abstract

The Niger River is one of the largest rivers in Subequatorial Africa. River channel classification developed by Lomonosov Moscow State University was applied to define variations in Niger River channel. The main channel type along the River Niger is braided, conjugated, with complex of terraces. The new groups of types of river channel have been identified that were not previously identified in the Subarctic, Moderat, Subtropical zones of Eurasia. The inclusion of “African” species in this classification is explained by the large differences in rainfall between the wet and dry seasons in the Subequatorial zone. New morphological varieties are terrace braided reaches and barrage braided channel reaches, meandering floodplain lake-channel systems and floodplain lake-channel disconnected systems.

Keywords

channel processes, braided channel, subequatorial belt, inland delta

About the Authors

N. N. Nazarov

Perm State University
Russian Federation

Faculty of Geography

B. Diarra

Perm State University
Russian Federation

Faculty of Geography

D. A. Dremin

Perm State University
Russian Federation

Faculty of Geography

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Review

For citations:

Nazarov N.N., Diarra B., Dremin D.A. Morphological varieties of the channel and the conditions of their formation in the Niger River (West Africa). Geomorfologiya. 2021;52(2):3-13. (In Russ.) https://doi.org/10.31857/S0435428121020085