We present a UAV-based photogrammetry study on Corvara landslide, a large and active earthflow in the Italian Dolomites. During a one-day field survey, an area of approximately 13 ha was cov- ered and a very high resolution orthophoto and a point cloud consisting of more than 200 million points were created. From this data, a Digital Surface Model (DSM) with a pixel size of 1.5 cm was prepared. The comparison to the existing 2006 LiDAR DSM highlights landslide enlargements, displacement rates and material depletion and accumulation exceeding 11 m. Although some uncertainties regarding the exact magnitude of topographical changes remain, the methodology has been evaluated as a useful addi- tion to the ongoing monitoring activities on the Corvara landslide by GPS and DInSAR due to the unprecedented level of detail.

Assessment of the 2006 to 2015 Corvara landslide evolution using a UAV-derived DSM and orthophoto / Thiebes, B; Tomelleri, E; Mejia Aguilar, A; Rabanser, M; Schlögel, R; Mulas, Marco; Corsini, Alessandro. - 3:(2016), pp. 1897-1902. ((Intervento presentato al convegno 12th International Symposium on Landslides (Napoli, Italy, 12-19 June 2016) tenutosi a Naples nel 12-19 June 2016 [10.1201/b21520-237].

Assessment of the 2006 to 2015 Corvara landslide evolution using a UAV-derived DSM and orthophoto

MULAS, MARCO;CORSINI, Alessandro
2016

Abstract

We present a UAV-based photogrammetry study on Corvara landslide, a large and active earthflow in the Italian Dolomites. During a one-day field survey, an area of approximately 13 ha was cov- ered and a very high resolution orthophoto and a point cloud consisting of more than 200 million points were created. From this data, a Digital Surface Model (DSM) with a pixel size of 1.5 cm was prepared. The comparison to the existing 2006 LiDAR DSM highlights landslide enlargements, displacement rates and material depletion and accumulation exceeding 11 m. Although some uncertainties regarding the exact magnitude of topographical changes remain, the methodology has been evaluated as a useful addi- tion to the ongoing monitoring activities on the Corvara landslide by GPS and DInSAR due to the unprecedented level of detail.
12th International Symposium on Landslides (Napoli, Italy, 12-19 June 2016)
Naples
12-19 June 2016
3
1897
1902
Thiebes, B; Tomelleri, E; Mejia Aguilar, A; Rabanser, M; Schlögel, R; Mulas, Marco; Corsini, Alessandro
Assessment of the 2006 to 2015 Corvara landslide evolution using a UAV-derived DSM and orthophoto / Thiebes, B; Tomelleri, E; Mejia Aguilar, A; Rabanser, M; Schlögel, R; Mulas, Marco; Corsini, Alessandro. - 3:(2016), pp. 1897-1902. ((Intervento presentato al convegno 12th International Symposium on Landslides (Napoli, Italy, 12-19 June 2016) tenutosi a Naples nel 12-19 June 2016 [10.1201/b21520-237].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1104758
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