Persistent Scatterer Interferometry (PSI) Technique for the Identification and Monitoring of Critical Landslide Areas in a Regional and Mountainous Road Network
A reliable road network is a vital local asset, connecting communities and unlocking economic growth. Every year landslides cause serious damage and, in some cases, the full disruption of many road networks, which can last from a few days to even months. The identification and monitoring of landslid...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/15/6/1550 |
| _version_ | 1797609238878486528 |
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| author | Constantinos Nefros Stavroula Alatza Constantinos Loupasakis Charalampos Kontoes |
| author_facet | Constantinos Nefros Stavroula Alatza Constantinos Loupasakis Charalampos Kontoes |
| author_sort | Constantinos Nefros |
| collection | DOAJ |
| description | A reliable road network is a vital local asset, connecting communities and unlocking economic growth. Every year landslides cause serious damage and, in some cases, the full disruption of many road networks, which can last from a few days to even months. The identification and monitoring of landslides with conventional methods on an extended and complex road network can be a rather difficult process, as it requires a significant amount of time and resources. The road network of the Chania regional unit on the island of Crete in Greece is a typical example, as it connects, over long distances, many remote mountainous villages with other local communities, as well as with the main urban centers, which are mainly located across the shore. Persistent scatterer interferometry (PSI) is a remote-sensing technique that can provide a reliable and cost-effective solution, as it can be used to identify and monitor slow-moving and ongoing landslides over large and complex areas such as those of the mountainous road networks. This study applied PSI in the Chania regional unit, using the novel parallelized PSI (P-PSI) processing chain, developed by the Operational Unit Center for Earth Observation Research and Satellite Remote Sensing BEYOND of the Institute of Astronomy and Astrophysics, Space Applications and Remote Sensing of the National Observatory of Athens (BEYOND) for the rapid identification of the areas, most critical to landslide in a local road network. The application of P-PSI speeded up the total required processing time by a factor of five and led to the rapid identification and monitoring of 235 new slow-moving landslides. The identified landslides were correlated with a pre-existing landslide inventory and open access visual data to create a complete landslide inventory and a relative landslide inventory map, thus offering a valuable tool to local stakeholders. |
| first_indexed | 2024-03-11T05:57:43Z |
| format | Article |
| id | doaj.art-e16dfe4bd48f45308a5b55256a191370 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-11T05:57:43Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-e16dfe4bd48f45308a5b55256a1913702023-11-17T13:38:40ZengMDPI AGRemote Sensing2072-42922023-03-01156155010.3390/rs15061550Persistent Scatterer Interferometry (PSI) Technique for the Identification and Monitoring of Critical Landslide Areas in a Regional and Mountainous Road NetworkConstantinos Nefros0Stavroula Alatza1Constantinos Loupasakis2Charalampos Kontoes3School of Mining and Metallurgical Engineering, National Technical University of Athens, 15780 Athens, GreeceInstitute for Astronomy, Astrophysics, Space Applications and Remote Sensing, Center for Earth Observation Research and Satellite Remote Sensing BEYOND, National Observatory of Athens, 15780 Athens, GreeceSchool of Mining and Metallurgical Engineering, National Technical University of Athens, 15780 Athens, GreeceInstitute for Astronomy, Astrophysics, Space Applications and Remote Sensing, Center for Earth Observation Research and Satellite Remote Sensing BEYOND, National Observatory of Athens, 15780 Athens, GreeceA reliable road network is a vital local asset, connecting communities and unlocking economic growth. Every year landslides cause serious damage and, in some cases, the full disruption of many road networks, which can last from a few days to even months. The identification and monitoring of landslides with conventional methods on an extended and complex road network can be a rather difficult process, as it requires a significant amount of time and resources. The road network of the Chania regional unit on the island of Crete in Greece is a typical example, as it connects, over long distances, many remote mountainous villages with other local communities, as well as with the main urban centers, which are mainly located across the shore. Persistent scatterer interferometry (PSI) is a remote-sensing technique that can provide a reliable and cost-effective solution, as it can be used to identify and monitor slow-moving and ongoing landslides over large and complex areas such as those of the mountainous road networks. This study applied PSI in the Chania regional unit, using the novel parallelized PSI (P-PSI) processing chain, developed by the Operational Unit Center for Earth Observation Research and Satellite Remote Sensing BEYOND of the Institute of Astronomy and Astrophysics, Space Applications and Remote Sensing of the National Observatory of Athens (BEYOND) for the rapid identification of the areas, most critical to landslide in a local road network. The application of P-PSI speeded up the total required processing time by a factor of five and led to the rapid identification and monitoring of 235 new slow-moving landslides. The identified landslides were correlated with a pre-existing landslide inventory and open access visual data to create a complete landslide inventory and a relative landslide inventory map, thus offering a valuable tool to local stakeholders.https://www.mdpi.com/2072-4292/15/6/1550landslidesremote sensingpersistent scatterersSARinterferometryGIS |
| spellingShingle | Constantinos Nefros Stavroula Alatza Constantinos Loupasakis Charalampos Kontoes Persistent Scatterer Interferometry (PSI) Technique for the Identification and Monitoring of Critical Landslide Areas in a Regional and Mountainous Road Network Remote Sensing landslides remote sensing persistent scatterers SAR interferometry GIS |
| title | Persistent Scatterer Interferometry (PSI) Technique for the Identification and Monitoring of Critical Landslide Areas in a Regional and Mountainous Road Network |
| title_full | Persistent Scatterer Interferometry (PSI) Technique for the Identification and Monitoring of Critical Landslide Areas in a Regional and Mountainous Road Network |
| title_fullStr | Persistent Scatterer Interferometry (PSI) Technique for the Identification and Monitoring of Critical Landslide Areas in a Regional and Mountainous Road Network |
| title_full_unstemmed | Persistent Scatterer Interferometry (PSI) Technique for the Identification and Monitoring of Critical Landslide Areas in a Regional and Mountainous Road Network |
| title_short | Persistent Scatterer Interferometry (PSI) Technique for the Identification and Monitoring of Critical Landslide Areas in a Regional and Mountainous Road Network |
| title_sort | persistent scatterer interferometry psi technique for the identification and monitoring of critical landslide areas in a regional and mountainous road network |
| topic | landslides remote sensing persistent scatterers SAR interferometry GIS |
| url | https://www.mdpi.com/2072-4292/15/6/1550 |
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