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(Article of periodic en Anglais - 2013)

Document title

Historical analysis indicates seepage control on initiation of meandering

Authors(s) and Affiliation(s)

EEKHOUT J.P.C. (1) ; HOITINK A.J.F. (1) ; MAKASKE B. (2) ;
(1) Hydrology and Quantitative Water Management Group, Univ., Wageningen, PAYS-BAS
(2) Alterra, Univ. and Research Centre, Wageningen, PAYS-BAS

Abstract

Based on a historical analysis of the Nierskanaal, the AA. show how and under which circumstances meandering has initiated in isolated sections of a channel. The Nierskanaal was constructed by the end of the 18th century, as a straight channel between the river Niers and the river Meuse. The planform development and incision process is analysed using topographic maps and airborne LiDAR data. Meandering initiated in 3 sections of the channel, where the channel sinuosity developed asynchronously. Sedimentary successions in the study area show layers of iron oxide, indicating groundwater seepage from aeolian river dunes and river deposits located nearby. Only at the spots where meandering has initiated iron oxide is found close to the surface level. This provides a clue that seepage triggered bank erosion by increasing moisture content of the banks. The spatial variation in meandering behaviour, as observed in the Nierskanaal, justifies efforts to implement the influence of floodplain heterogeneity and the effect of seepage on bank erosion in meander models

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2013, vol. 38, no8 [pp. 888-897]

Bibliographic references : 1 p.

Collation : 12 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3376

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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