Application of a Terrestrial Laser Scanner (TLS) to the Study of the Séchilienne Landslide (Isère, France)
The active Séchilienne landslide (Isère, France) has been continuously monitored by tacheometry, radar and extensometry devices for 25 years. Indeed, if the 3 mil. m3 of rocks in the active zone named ―Ruines‖ fell down, the debris would dam the Romanche valley. The breaking of the dam by overtoppin...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2010-12-01
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| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2072-4292/2/12/2785/ |
| _version_ | 1818948487536967680 |
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| author | Marion Jaud Eric Varrel Johan Kasperski Christophe Delacourt Pascal Allemand Pierre Potherat |
| author_facet | Marion Jaud Eric Varrel Johan Kasperski Christophe Delacourt Pascal Allemand Pierre Potherat |
| author_sort | Marion Jaud |
| collection | DOAJ |
| description | The active Séchilienne landslide (Isère, France) has been continuously monitored by tacheometry, radar and extensometry devices for 25 years. Indeed, if the 3 mil. m3 of rocks in the active zone named ―Ruines‖ fell down, the debris would dam the Romanche valley. The breaking of the dam by overtopping and rapid erosion would bring a catastrophic flood and other dramatic consequences throughout the valley. Given the rockfall hazard in the most active zone, it is impossible to use targets in this area: Only reflectorless remote sensing techniques can provide information. A time-series of seven Terrestrial Laser Scanner (TLS) point clouds acquired between 2004 and 2007 enable us to monitor the 3D displacements of the whole scanned area, although point coverage is not homogeneous. From this sequential monitoring, the volume of registered collapses can be deduced and the landslide movement along the main geological structures can be inferred. From monitoring associated subsidence and toppling observed on TLS data, it can be deduced that blocks rearrangements are linked to structural settings and that the Séchilienne landslide is complex. To conclude, TLS point clouds enable an accurate monitoring of the evolution of the inaccessible "Ruines" area and, proven its ability to provide reliable kinematic information, even in areas where on-site instrumentation is infeasible. |
| first_indexed | 2024-12-20T08:47:35Z |
| format | Article |
| id | doaj.art-2a3d77d414a6471f9ef6e1f79f901a61 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-12-20T08:47:35Z |
| publishDate | 2010-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-2a3d77d414a6471f9ef6e1f79f901a612022-12-21T19:46:13ZengMDPI AGRemote Sensing2072-42922010-12-012122785280210.3390/rs122785Application of a Terrestrial Laser Scanner (TLS) to the Study of the Séchilienne Landslide (Isère, France)Marion JaudEric VarrelJohan KasperskiChristophe DelacourtPascal AllemandPierre PotheratThe active Séchilienne landslide (Isère, France) has been continuously monitored by tacheometry, radar and extensometry devices for 25 years. Indeed, if the 3 mil. m3 of rocks in the active zone named ―Ruines‖ fell down, the debris would dam the Romanche valley. The breaking of the dam by overtopping and rapid erosion would bring a catastrophic flood and other dramatic consequences throughout the valley. Given the rockfall hazard in the most active zone, it is impossible to use targets in this area: Only reflectorless remote sensing techniques can provide information. A time-series of seven Terrestrial Laser Scanner (TLS) point clouds acquired between 2004 and 2007 enable us to monitor the 3D displacements of the whole scanned area, although point coverage is not homogeneous. From this sequential monitoring, the volume of registered collapses can be deduced and the landslide movement along the main geological structures can be inferred. From monitoring associated subsidence and toppling observed on TLS data, it can be deduced that blocks rearrangements are linked to structural settings and that the Séchilienne landslide is complex. To conclude, TLS point clouds enable an accurate monitoring of the evolution of the inaccessible "Ruines" area and, proven its ability to provide reliable kinematic information, even in areas where on-site instrumentation is infeasible.http://www.mdpi.com/2072-4292/2/12/2785/landslideSéchilienneterrestrial laser scanner |
| spellingShingle | Marion Jaud Eric Varrel Johan Kasperski Christophe Delacourt Pascal Allemand Pierre Potherat Application of a Terrestrial Laser Scanner (TLS) to the Study of the Séchilienne Landslide (Isère, France) Remote Sensing landslide Séchilienne terrestrial laser scanner |
| title | Application of a Terrestrial Laser Scanner (TLS) to the Study of the Séchilienne Landslide (Isère, France) |
| title_full | Application of a Terrestrial Laser Scanner (TLS) to the Study of the Séchilienne Landslide (Isère, France) |
| title_fullStr | Application of a Terrestrial Laser Scanner (TLS) to the Study of the Séchilienne Landslide (Isère, France) |
| title_full_unstemmed | Application of a Terrestrial Laser Scanner (TLS) to the Study of the Séchilienne Landslide (Isère, France) |
| title_short | Application of a Terrestrial Laser Scanner (TLS) to the Study of the Séchilienne Landslide (Isère, France) |
| title_sort | application of a terrestrial laser scanner tls to the study of the sechilienne landslide isere france |
| topic | landslide Séchilienne terrestrial laser scanner |
| url | http://www.mdpi.com/2072-4292/2/12/2785/ |
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