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(Article of periodic en Anglais - 1998)

Document title

Planform cyclicity in an unstable reach : complex fluvial response to environmental change

Authors(s) and Affiliation(s)

BREWER P.A. ; LEWIN J. ;

Abstract

Long- and short-term channel changes are documented and analysed for a historically unstable reach of the River Severn at Llandinam, mid-Wales. Long-term changes (the last 150 years), reconstructed from 10 archival sources, are characterized by channel planform switching between meandering (1836-1840 and 1948-1963) and braided (1884-1903 and 1975-present) phases. Short-term changes, monitored by detailed planform surveys over a 2.5 year period, showed smaller-scale channel adjustments involving channel switching, bar accretion and channel expansion. Flow regulation on the River Severn since 1968 has partly frozen the planform of the contemporary braid zone

Source

Article of periodic

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

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

Millesime : 1998, vol. 23, no11 [pp. 989-1008]

Bibliographic references : 2 p.

Collation : Illustration ;

Language

Anglais

Localisation

Bureau de recherches géologiques et minières - Orléans

INIST-CNRS, Cote INIST : 17355

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1999.
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