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(Article of periodic en Anglais - 2013)

Document title

Kinematics of active earthflows revealed by digital image correlation and DEM subtraction techniques applied to multi-temporal LiDAR data

Authors(s) and Affiliation(s)

DAEHNE A. (1) ; CORSINI A. (2) ;
(1) Dept. of Geosciences, univ. of Missouri, Kansas City, ETATS-UNIS
(2) Dept. of Chemical and Geological Sciences, Univ. of Modena and Reggio Emilia, Modena, ITALIE

Abstract

The AA. explored the possibility to quantify displacement vectors on a spatially distributed basis and to quantify volumetric transfer at the slope scale with regard to a large flow-type landslide located in the northern Apennines of Italy. For this purpose they applied digital image correlation (DIC) and digital elevation model differencing (DEMoD) techniques to multi-temporal airborne LiDAR surveys of 2006, 2007 and 2009. The DIC was applied to greyscale slope gradient maps retrieved after precise co-registration of LiDAR surveys. Thereby, movement patterns over various sectors of the landslide were reconstructed and quantified. The DEMoD analysis revealed significant mass transfer from the source to the tracks and toe zone. In conclusion, the successful application of DIC and DEMoD to the case study underlines the added value of high-resolution DEMs in the analysis of earthflow kinematics toward a better understanding of their role in the geomorphic evolution of slopes

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, no6 [pp. 640-654]

Bibliographic references : 2 p.

Collation : 14 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3351

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