Geodetic and UAV Monitoring in the Sustainable Management of Shallow Landslides and Erosion of a Susceptible Urban Environment
Landslides are a worldwide occurring hazard that can produce economic impact and even fatalities. The collection and monitoring of data regarding active landslides are important for predicting future landslides in that region, and is critical to minimize the losses caused. In the expanding metropoli...
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MDPI AG
2021-01-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/13/3/385 |
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| author | Paul Sestras Ștefan Bilașco Sanda Roșca Branislav Dudic Artan Hysa Velibor Spalević |
| author_facet | Paul Sestras Ștefan Bilașco Sanda Roșca Branislav Dudic Artan Hysa Velibor Spalević |
| author_sort | Paul Sestras |
| collection | DOAJ |
| description | Landslides are a worldwide occurring hazard that can produce economic impact and even fatalities. The collection and monitoring of data regarding active landslides are important for predicting future landslides in that region, and is critical to minimize the losses caused. In the expanding metropolitan area of Cluj-Napoca, Romania, drastic changes of land use and increasement of construction zones represent a current evolution issue. The urban sprawl phenomenon imposed the expansion of the city limits and outside the old built-up area, and due to the hilly terrain and geomorphology, natural hazards such as landslides and erosion processes are susceptible to appearance or reactivation. The study incorporates interdisciplinary research composed of evaluation of a landslide susceptible hotspot located in an area of interest to the municipality by means of geodetic and topographic precise measurements, combined with the use of unmanned aerial vehicles (UAV) monitoring of surface movement and GIS spatial analysis. The data obtained in a span of over two years reveal that the investigated slope is subjected to a shallow active landslide of a few centimeters per year, and based on the 64 individual placed landmarks the highest displacement value was 67 mm. Through geomatic tools the exchange rate of the slope surface was evaluated with comprehensive volume calculations, such as displacement, erosion, and accumulation that illustrate a volume of material displaced of 107.2 m<sup>3</sup> and the accumulated one of 55.7 m<sup>3</sup>. The results provide valuable insight into the complex landslide and erosion dynamics that are crucial when predicting future movements and prevention measures. |
| first_indexed | 2024-03-09T03:54:36Z |
| format | Article |
| id | doaj.art-8a1c0668f28146e4b64a443a51fc1520 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T03:54:36Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-8a1c0668f28146e4b64a443a51fc15202023-12-03T14:22:42ZengMDPI AGRemote Sensing2072-42922021-01-0113338510.3390/rs13030385Geodetic and UAV Monitoring in the Sustainable Management of Shallow Landslides and Erosion of a Susceptible Urban EnvironmentPaul Sestras0Ștefan Bilașco1Sanda Roșca2Branislav Dudic3Artan Hysa4Velibor Spalević5Faculty of Civil Engineering, Technical University of Cluj-Napoca, 400020 Cluj-Napoca, RomaniaFaculty of Geography, Babes-Bolyai University, 400006 Cluj-Napoca, RomaniaFaculty of Geography, Babes-Bolyai University, 400006 Cluj-Napoca, RomaniaFaculty of Management, Comenius University in Bratislava, 82005 Bratislava, SlovakiaFaculty of Architecture and Engineering, Epoka University, 1000 Tirana, AlbaniaGeography Department, Faculty of Philosophy, University of Montenegro, 81400 Niksic, MontenegroLandslides are a worldwide occurring hazard that can produce economic impact and even fatalities. The collection and monitoring of data regarding active landslides are important for predicting future landslides in that region, and is critical to minimize the losses caused. In the expanding metropolitan area of Cluj-Napoca, Romania, drastic changes of land use and increasement of construction zones represent a current evolution issue. The urban sprawl phenomenon imposed the expansion of the city limits and outside the old built-up area, and due to the hilly terrain and geomorphology, natural hazards such as landslides and erosion processes are susceptible to appearance or reactivation. The study incorporates interdisciplinary research composed of evaluation of a landslide susceptible hotspot located in an area of interest to the municipality by means of geodetic and topographic precise measurements, combined with the use of unmanned aerial vehicles (UAV) monitoring of surface movement and GIS spatial analysis. The data obtained in a span of over two years reveal that the investigated slope is subjected to a shallow active landslide of a few centimeters per year, and based on the 64 individual placed landmarks the highest displacement value was 67 mm. Through geomatic tools the exchange rate of the slope surface was evaluated with comprehensive volume calculations, such as displacement, erosion, and accumulation that illustrate a volume of material displaced of 107.2 m<sup>3</sup> and the accumulated one of 55.7 m<sup>3</sup>. The results provide valuable insight into the complex landslide and erosion dynamics that are crucial when predicting future movements and prevention measures.https://www.mdpi.com/2072-4292/13/3/385topographyGNSStotal stationfly surveyGIS spatial analysisgeomatics |
| spellingShingle | Paul Sestras Ștefan Bilașco Sanda Roșca Branislav Dudic Artan Hysa Velibor Spalević Geodetic and UAV Monitoring in the Sustainable Management of Shallow Landslides and Erosion of a Susceptible Urban Environment Remote Sensing topography GNSS total station fly survey GIS spatial analysis geomatics |
| title | Geodetic and UAV Monitoring in the Sustainable Management of Shallow Landslides and Erosion of a Susceptible Urban Environment |
| title_full | Geodetic and UAV Monitoring in the Sustainable Management of Shallow Landslides and Erosion of a Susceptible Urban Environment |
| title_fullStr | Geodetic and UAV Monitoring in the Sustainable Management of Shallow Landslides and Erosion of a Susceptible Urban Environment |
| title_full_unstemmed | Geodetic and UAV Monitoring in the Sustainable Management of Shallow Landslides and Erosion of a Susceptible Urban Environment |
| title_short | Geodetic and UAV Monitoring in the Sustainable Management of Shallow Landslides and Erosion of a Susceptible Urban Environment |
| title_sort | geodetic and uav monitoring in the sustainable management of shallow landslides and erosion of a susceptible urban environment |
| topic | topography GNSS total station fly survey GIS spatial analysis geomatics |
| url | https://www.mdpi.com/2072-4292/13/3/385 |
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