On river cross-sectional change in the Niger Delta

Auteurs :
ABAM, T.K.S.
OMUSO, W.O.

Description :
Changes in river cross-sections in the Niger Delta are instigated mainly by bank failures, fluctuations in discharge, and bed degradation by fluvial processes. The relative importance of factors causing river cross-sectional change was ranked, based on a deterministic sensitivity technique involving partial differentiation of soil properties, flow characteristics, and geometrical parameters of the river channels. Sensitivity coefficients were used further to generate susceptibility indices, indicating the vulnerability of channel cross-sections to change.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 2000, vol. 34, n°. 1-2, p. 111-126, Collation : Illustration, Références bibliographiques : 21 ref.

Date :
2000

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier