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Remote-sensing techniques for analysing landslide kinematics; a review

Christophe Delacourt, Pascal Allemand, Etienne Berthier, Daniel Raucoules, Berangere Casson, Philippe Grandjean, Claude Pambrun and Eric Varel
Remote-sensing techniques for analysing landslide kinematics; a review (in Issues in landslide process monitoring and understanding, Jean-Philippe Malet (prefacer), Christophe Delacourt (prefacer), Olivier Maquaire (prefacer) and David Amitrano (prefacer))
Bulletin de la Societe Geologique de France (March 2007) 178 (2): 89-100

Abstract

Surface displacement field of landslides is a key parameter to access to their geometries and mechanical properties. Surface displacements can be calculated using remote-sensing methods such as interferometry for radar data and image correlation for optical data. These methods have been elaborated this last decade and successfully applied on sensors (radar, cameras, terrestrial 3D laser scanner imaging) either attached to space or aerial platforms such as satellites, planes, and unmanned radio-controlled platforms (drones and helicopters) or settled at fixed positions emplaced in the front of landslides. This paper reviews the techniques of image analysis (interferometry and optical data correlation) to measure displacements and examines the performance of each type of platforms. Examples of applications of these techniques in French South Alps are shown. Depending on the landslide characteristics (exposure conditions, size, velocity) as well as the goal of the study (operational or scientific purpose), one or a combination of several techniques and data (characterized by several resolution, accuracy, covered surface, revisiting time) have to be used. Radar satellite data processed with differential interferometric or PS methods are mainly suitable for scientific purposes due to various application limitations in mountainous area. Optical satellite and aerial images can be used for scientific studies at fairly high resolution but are strongly dependant on atmospheric conditions. Platforms and sensors such as drone, fixed camera, fixed radar and Lidar have the advantage of high adaptability. They can be used to obtain very high resolution and precise 3D data (of centimetric accuracy) suitable for both scientific and operational purposes.


ISSN: 0037-9409
EISSN: 1777-5817
Serial Title: Bulletin de la Societe Geologique de France
Serial Volume: 178
Serial Issue: 2
Title: Remote-sensing techniques for analysing landslide kinematics; a review
Title: Issues in landslide process monitoring and understanding
Author(s): Delacourt, ChristopheAllemand, PascalBerthier, EtienneRaucoules, DanielCasson, BerangereGrandjean, PhilippePambrun, ClaudeVarel, Eric
Author(s): Malet, Jean-Philippeprefacer
Author(s): Delacourt, Christopheprefacer
Author(s): Maquaire, Olivierprefacer
Author(s): Amitrano, Davidprefacer
Affiliation: Universite Bretagne Occidentale, Domaines Oceaniques, Brest, France
Affiliation: CNRS, Laboratoire de Geographie Physique et de l'Environnement (LETG-Geophen), Caen, France
Pages: 89-100
Published: 200703
Text Language: English
Summary Language: French
Publisher: Societe Geologique de France, Paris, France
References: 51
Accession Number: 2007-051557
Categories: GeomorphologyEngineering geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, sketch maps
N44°00'00" - N44°36'00", W06°24'00" - E07°12'00"
Secondary Affiliation: Universte de Bretagne Occidentale, FRA, FranceLaboratoire Interdisciplinaire de Recherche Impliquant la Geologie et la Mecanique (LIRIGM), FRA, FranceCNRS, Laboratoire de Sciences de la Terre, FRA, FranceCNRS, Laboratoire d'Etudes en Geophysique et Oceanographie Spatiales, FRA, FranceBureau de Recherches Geologiques et Minieres, FRA, FranceGeosciences Azur, FRA, FranceATM3D, FRA, France
Country of Publication: France
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Societe Geologique de France. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 200727
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