Production of high-resolution digital terrain models in mountain regions to support risk assessment
Demand for high-accuracy digital terrain models (DTMs) in the Alpine region has been steadily increasing in recent years in valleys as well as high mountains. In the former, the determination of the geo-mechanical parameters of rock masses is the main objective; global warming, which causes the retr...
Published in: | Geomatics, Natural Hazards and Risk |
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Online Access: | http://hdl.handle.net/11381/2684692 https://doi.org/10.1080/19475705.2013.862746 |
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ftunivparmairis:oai:air.unipr.it:11381/2684692 2024-04-21T08:10:18+00:00 Production of high-resolution digital terrain models in mountain regions to support risk assessment FORLANI, Gianfranco RONCELLA, Riccardo Fabrizio Diotri Forlani, Gianfranco Roncella, Riccardo Fabrizio, Diotri 2015 http://hdl.handle.net/11381/2684692 https://doi.org/10.1080/19475705.2013.862746 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000356428000003 volume:6 issue:5-7 firstpage:379 lastpage:397 numberofpages:19 journal:GEOMATICS, NATURAL HAZARDS & RISK http://hdl.handle.net/11381/2684692 doi:10.1080/19475705.2013.862746 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84931562614 info:eu-repo/semantics/article 2015 ftunivparmairis https://doi.org/10.1080/19475705.2013.862746 2024-03-28T01:18:34Z Demand for high-accuracy digital terrain models (DTMs) in the Alpine region has been steadily increasing in recent years in valleys as well as high mountains. In the former, the determination of the geo-mechanical parameters of rock masses is the main objective; global warming, which causes the retreat of glaciers and the reduction of permafrost, is the main drive of the latter. The consequence is the instability of rock masses in high mountains: new cost-effective monitoring techniques are required to deal with the peculiar characteristics of such environment, delivering results at short notice. After discussing the design and execution of photogrammetric surveys in such areas, with particular reference to block orientation and block control, the paper describes the production of DTMs of rock faces and glacier fronts with light instrumentation and data acquisition techniques, allowing highly automated data processing. To this aim, the PhotoGPS technique and structure from motion algorithms are used to speed up the orientation process, while dense matching area-based correlation techniques are used to generate the DTMs. Article in Journal/Newspaper permafrost Archivio della ricerca dell'Università di Parma (CINECA IRIS) Geomatics, Natural Hazards and Risk 6 5-7 379 397 |
institution |
Open Polar |
collection |
Archivio della ricerca dell'Università di Parma (CINECA IRIS) |
op_collection_id |
ftunivparmairis |
language |
English |
description |
Demand for high-accuracy digital terrain models (DTMs) in the Alpine region has been steadily increasing in recent years in valleys as well as high mountains. In the former, the determination of the geo-mechanical parameters of rock masses is the main objective; global warming, which causes the retreat of glaciers and the reduction of permafrost, is the main drive of the latter. The consequence is the instability of rock masses in high mountains: new cost-effective monitoring techniques are required to deal with the peculiar characteristics of such environment, delivering results at short notice. After discussing the design and execution of photogrammetric surveys in such areas, with particular reference to block orientation and block control, the paper describes the production of DTMs of rock faces and glacier fronts with light instrumentation and data acquisition techniques, allowing highly automated data processing. To this aim, the PhotoGPS technique and structure from motion algorithms are used to speed up the orientation process, while dense matching area-based correlation techniques are used to generate the DTMs. |
author2 |
Forlani, Gianfranco Roncella, Riccardo Fabrizio, Diotri |
format |
Article in Journal/Newspaper |
author |
FORLANI, Gianfranco RONCELLA, Riccardo Fabrizio Diotri |
spellingShingle |
FORLANI, Gianfranco RONCELLA, Riccardo Fabrizio Diotri Production of high-resolution digital terrain models in mountain regions to support risk assessment |
author_facet |
FORLANI, Gianfranco RONCELLA, Riccardo Fabrizio Diotri |
author_sort |
FORLANI, Gianfranco |
title |
Production of high-resolution digital terrain models in mountain regions to support risk assessment |
title_short |
Production of high-resolution digital terrain models in mountain regions to support risk assessment |
title_full |
Production of high-resolution digital terrain models in mountain regions to support risk assessment |
title_fullStr |
Production of high-resolution digital terrain models in mountain regions to support risk assessment |
title_full_unstemmed |
Production of high-resolution digital terrain models in mountain regions to support risk assessment |
title_sort |
production of high-resolution digital terrain models in mountain regions to support risk assessment |
publishDate |
2015 |
url |
http://hdl.handle.net/11381/2684692 https://doi.org/10.1080/19475705.2013.862746 |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000356428000003 volume:6 issue:5-7 firstpage:379 lastpage:397 numberofpages:19 journal:GEOMATICS, NATURAL HAZARDS & RISK http://hdl.handle.net/11381/2684692 doi:10.1080/19475705.2013.862746 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84931562614 |
op_doi |
https://doi.org/10.1080/19475705.2013.862746 |
container_title |
Geomatics, Natural Hazards and Risk |
container_volume |
6 |
container_issue |
5-7 |
container_start_page |
379 |
op_container_end_page |
397 |
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1796951716884643840 |