Brief communication: 3-D reconstruction of a collapsed rock pillar from Web-retrieved images and terrestrial lidar data – the 2005 event of the west face of the Drus (Mont Blanc massif)

Guerin, Antoine; Abellán, Antonio; Matasci, Battista; Jaboyedoff, Michel; Derron, Marc-Henri; Ravanel, Ludovic

doi:https://doi.org/10.5194/nhess-17-1207-2017

Articles | Volume 17, issue 7

https://doi.org/10.5194/nhess-17-1207-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/nhess-17-1207-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 7

Brief communication

|

18 Jul 2017

Brief communication |

| 18 Jul 2017

Brief communication: 3-D reconstruction of a collapsed rock pillar from Web-retrieved images and terrestrial lidar data – the 2005 event of the west face of the Drus (Mont Blanc massif)

Antoine Guerin, Antonio Abellán, Battista Matasci, Michel Jaboyedoff, Marc-Henri Derron, and Ludovic Ravanel

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Final revised paper (published on 18 Jul 2017)
Preprint (discussion started on 07 Oct 2016)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Comments for “3D reconstruction of a collapsed rock pillar from web-retrieved images and terrestrial LiDAR data...”', Anonymous Referee #1, 16 Nov 2016
- AC1: 'Response letter to the Anonymous Referee #1 of the NHESS journal – Brief_communication_nhess_2016_316_Guerin_et_al.', Antoine Guerin, 12 May 2017
RC2: 'Review nhess-2016-316', Anonymous Referee #2, 16 Mar 2017
- AC2: 'Response letter to the Anonymous Referee #2 of the NHESS journal – Brief_communication_nhess_2016_316_Guerin_et_al.', Antoine Guerin, 12 May 2017

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Reconsider after major revisions (further review by Editor and Referees) (06 Jun 2017) by Oded Katz

AR by Antoine Guerin on behalf of the Authors (06 Jun 2017) Author's response Manuscript

ED: Publish as is (12 Jun 2017) by Oded Katz

Short summary

The coupling of terrestrial lidar scans acquired in 2011 and a photogrammetric model created from 30 old Web-retrieved images enabled reconstructing in 3-D the Drus west face before the 2005 rock avalanche and estimating the volume of this event. The volume is calculated as 292 680 m³ (±5.6 %). However, despite functioning well for the Drus (legendary peak), this method would have been difficult to implement on a less-well-known site with fewer images available to be collected and downloaded.