Commercial-UAV-based structure from motion for geological and geohazard studies
In the present work we applied the use of the UAV-based Structure from Motion technique (SfM) to geological and geohazard studies, with emphasis placed on active tectonics and volcano-tectonics cases. Our aim is to obtain high-resolution orthomosaics and Digital Surface Models (DSMs) in two study ar...
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Springer Netherlands
2021
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Online Access: | http://hdl.handle.net/10281/305257 https://doi.org/10.1007/978-94-024-2046-3_22 |
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ftunivmilanobic:oai:boa.unimib.it:10281/305257 2024-04-14T08:13:39+00:00 Commercial-UAV-based structure from motion for geological and geohazard studies Bonali F. L. Corti N. Russo E. Marchese F. Fallati L. Pasquare Mariotto F. Tibaldi A. Bonali, FL Pasquaré Mariotto, F Tsereteli, N Bonali, F Corti, N Russo, E Marchese, F Fallati, L Pasquare Mariotto, F Tibaldi, A 2021 STAMPA http://hdl.handle.net/10281/305257 https://doi.org/10.1007/978-94-024-2046-3_22 eng eng Springer Netherlands country:NL info:eu-repo/semantics/altIdentifier/isbn/978-94-024-2045-6 ispartofbook:Building Knowledge for Geohazard Assessment and Management in the Caucasus and other Orogenic Regions firstpage:389 lastpage:427 numberofpages:39 serie:NATO SCIENCE FOR PEACE AND SECURITY SERIES. C, ENVIRONMENTAL SECURITY alleditors:Bonali, FL; Pasquaré Mariotto, F; Tsereteli, N http://hdl.handle.net/10281/305257 doi:10.1007/978-94-024-2046-3_22 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85101130124 Caucasu Geohazard Iceland Structure from motion Tectonic UAV or drone GEO/03 - GEOLOGIA STRUTTURALE info:eu-repo/semantics/bookPart 2021 ftunivmilanobic https://doi.org/10.1007/978-94-024-2046-3_22 2024-03-21T17:20:40Z In the present work we applied the use of the UAV-based Structure from Motion technique (SfM) to geological and geohazard studies, with emphasis placed on active tectonics and volcano-tectonics cases. Our aim is to obtain high-resolution orthomosaics and Digital Surface Models (DSMs) in two study areas: the Theistareykir Fissure Swarm within the Northern Volcanic Zone (NVZ) of Iceland and the active Khoko landslide, Enguri reservoir, in the Greater Caucasus, Georgia. The first is affected by seismic and volcanic hazard, the second by landslide and hydrogeological hazard. Regarding the NVZ, by analysing the resulting Orthomosaics and DSMs we collected a total of 453 quantitative measurements of the amount of opening and opening direction of Holocene extension fractures and 36 measurements of the height of fault scarps. These data allowed us to assess an overall spreading direction of N106.4° during Holocene times within the studied rift zone, which has been compared with geodetic motion vectors, and a stretching ratio of 1.013–1.017 for 8–10ka old lava units. We conclude that deformation in the area is related to both dyke intrusions and extensional tectonics. In the Greater Caucasus, we applied the method to identify the main geomorphological features related to the Khoko landslide and to measure the scarp height of the principal slip surfaces, in order to improve geomorphological knowledge of the landslide, and contribute to the assessment of the hydrogeological hazard of the area. At a general level, our results suggest that the use of UAV-based SfM is a convenient and efficient way to collect plenty of data aimed at better assessing geohazards in areas prone to catastrophic natural phenomena like earthquakes, volcanic eruptions and landslides. Book Part Iceland Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive) 389 427 |
institution |
Open Polar |
collection |
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive) |
op_collection_id |
ftunivmilanobic |
language |
English |
topic |
Caucasu Geohazard Iceland Structure from motion Tectonic UAV or drone GEO/03 - GEOLOGIA STRUTTURALE |
spellingShingle |
Caucasu Geohazard Iceland Structure from motion Tectonic UAV or drone GEO/03 - GEOLOGIA STRUTTURALE Bonali F. L. Corti N. Russo E. Marchese F. Fallati L. Pasquare Mariotto F. Tibaldi A. Commercial-UAV-based structure from motion for geological and geohazard studies |
topic_facet |
Caucasu Geohazard Iceland Structure from motion Tectonic UAV or drone GEO/03 - GEOLOGIA STRUTTURALE |
description |
In the present work we applied the use of the UAV-based Structure from Motion technique (SfM) to geological and geohazard studies, with emphasis placed on active tectonics and volcano-tectonics cases. Our aim is to obtain high-resolution orthomosaics and Digital Surface Models (DSMs) in two study areas: the Theistareykir Fissure Swarm within the Northern Volcanic Zone (NVZ) of Iceland and the active Khoko landslide, Enguri reservoir, in the Greater Caucasus, Georgia. The first is affected by seismic and volcanic hazard, the second by landslide and hydrogeological hazard. Regarding the NVZ, by analysing the resulting Orthomosaics and DSMs we collected a total of 453 quantitative measurements of the amount of opening and opening direction of Holocene extension fractures and 36 measurements of the height of fault scarps. These data allowed us to assess an overall spreading direction of N106.4° during Holocene times within the studied rift zone, which has been compared with geodetic motion vectors, and a stretching ratio of 1.013–1.017 for 8–10ka old lava units. We conclude that deformation in the area is related to both dyke intrusions and extensional tectonics. In the Greater Caucasus, we applied the method to identify the main geomorphological features related to the Khoko landslide and to measure the scarp height of the principal slip surfaces, in order to improve geomorphological knowledge of the landslide, and contribute to the assessment of the hydrogeological hazard of the area. At a general level, our results suggest that the use of UAV-based SfM is a convenient and efficient way to collect plenty of data aimed at better assessing geohazards in areas prone to catastrophic natural phenomena like earthquakes, volcanic eruptions and landslides. |
author2 |
Bonali, FL Pasquaré Mariotto, F Tsereteli, N Bonali, F Corti, N Russo, E Marchese, F Fallati, L Pasquare Mariotto, F Tibaldi, A |
format |
Book Part |
author |
Bonali F. L. Corti N. Russo E. Marchese F. Fallati L. Pasquare Mariotto F. Tibaldi A. |
author_facet |
Bonali F. L. Corti N. Russo E. Marchese F. Fallati L. Pasquare Mariotto F. Tibaldi A. |
author_sort |
Bonali F. L. |
title |
Commercial-UAV-based structure from motion for geological and geohazard studies |
title_short |
Commercial-UAV-based structure from motion for geological and geohazard studies |
title_full |
Commercial-UAV-based structure from motion for geological and geohazard studies |
title_fullStr |
Commercial-UAV-based structure from motion for geological and geohazard studies |
title_full_unstemmed |
Commercial-UAV-based structure from motion for geological and geohazard studies |
title_sort |
commercial-uav-based structure from motion for geological and geohazard studies |
publisher |
Springer Netherlands |
publishDate |
2021 |
url |
http://hdl.handle.net/10281/305257 https://doi.org/10.1007/978-94-024-2046-3_22 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
info:eu-repo/semantics/altIdentifier/isbn/978-94-024-2045-6 ispartofbook:Building Knowledge for Geohazard Assessment and Management in the Caucasus and other Orogenic Regions firstpage:389 lastpage:427 numberofpages:39 serie:NATO SCIENCE FOR PEACE AND SECURITY SERIES. C, ENVIRONMENTAL SECURITY alleditors:Bonali, FL; Pasquaré Mariotto, F; Tsereteli, N http://hdl.handle.net/10281/305257 doi:10.1007/978-94-024-2046-3_22 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85101130124 |
op_doi |
https://doi.org/10.1007/978-94-024-2046-3_22 |
container_start_page |
389 |
op_container_end_page |
427 |
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1796311685435228160 |