IGB

Connexion

(Article of periodic en Anglais - 2009)

Document title

Tsunamis as geomorphic crises : lessons from the December 26, 2004 tsunami in Lhok Nga, West Banda Aceh (Sumatra, Indonesia)

published at : Coastal geomorphology. Special issue

Authors(s) and Affiliation(s)

PARIS R. (1) ; WASSMER P. (2) ; SARTOHADI J. (3) ; LAVIGNE F. (2) ; BARTHOMEUF B. (1) ; DESGAGES E. (1) ; GRANCHER D. (2) ; BAUMERT P. (2) ; VAUTIER F. (1) ; BRUNSTEIN D. (2) ; GOMEZ C. (2) ;
(1) GEOLAB, UMR 6042 CNRS, Clermont-Ferrand, FRANCE
(2) UMR 8591 Laboratoire de Géographie Physique - CNRS, MEUDON, FRANCE
(3) Univ. Gadjah Mada, Java, Yogyakarta, INDONESIE

Abstract

The AA. present a description of the coastal erosion and boulder deposition induced by the 2004 tsunami in the Lhok Nga Bay, located to the West of Banda Aceh (northwest Sumatra), one of the largest and deadliest tsunamis in recorded human history. The geomorphological impact of the tsunami is evidenced by: beach erosion (some beaches have almost disappeared); destruction of sand barriers protecting the lagoons or at river mouths; numerous erosion escarpments; bank erosion in the river beds; large scars on slopes; dislodgement of blocks along fractures and structural ramps on cliffs. Finally, the spatial and size distributions of tsunami boulder deposits mostly depend on the location and characteristics of their source (coral reef, beach rock, platform, dams), together with clast and surface interference during transport. One year after, the coastal environment in northwest Sumatra is still in a post-tsunami dynamic

Source

Thematical fascicle

published at : Geomorphology / ISSN 0169-555X

Editor : Elsevier, Amsterdam - PAYS-BAS (1987)

Millesime : 2009, vol. 104, no 1-2 [pp. 59-72]

Bibliographic references : 1 p.

Collation : fig., tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 21151

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.geomorph.2008.05.040

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
Refdoc record number (ud4) : 22360017 : Permanent link - XML version
Powered by Pxxo