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(Article of periodic en Anglais - 2002)

Document title

Volume estimation of the 1998 flank collapse at Casita volcano, Nicaragua : a comparison of photogrammetric and conventional techniques

Authors(s) and Affiliation(s)

KERLE N. ;

Abstract

In october 1998, a precipitation-triggered flank collapse occurred at Casita volcano, leading to a devastating lahar. In this paper the failure volume was calculated using a range of methods. Several pre- and post-failure digital elevation models (DEMs) were created, based on photogrammetric, cartometric and surveying data. The best estimate for the failure volume is based on a vegetation-corrected pre-failure DEM, generated using automated digital photogrammetry, and a post-failure surface based on a field survey carried out with a Total Station. It is demonstrated that values reported in the literature must be regarded with caution

Source

Article of periodic

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

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

Millesime : 2002, vol. 27, no7 [pp. 759-772]

Bibliographic references : 30 ref.

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), 2004.
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