Using InSAR and GPR Techniques to Detect Subsidence: Application to the Coastal Area of “A Xunqueira” (NW Spain)
Climate change represents an important cause of subsidence, especially in coastal cities affected by changes in surface water level and water table. This paper presents a complementary study of Interferometric Synthetic Aperture Radar (InSAR) and Ground Penetrating Radar (GPR) for the early detectio...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/15/15/3729 |
| _version_ | 1797586116961894400 |
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| author | Alex Alonso-Díaz Josué Casado-Rabasco Mercedes Solla Susana Lagüela |
| author_facet | Alex Alonso-Díaz Josué Casado-Rabasco Mercedes Solla Susana Lagüela |
| author_sort | Alex Alonso-Díaz |
| collection | DOAJ |
| description | Climate change represents an important cause of subsidence, especially in coastal cities affected by changes in surface water level and water table. This paper presents a complementary study of Interferometric Synthetic Aperture Radar (InSAR) and Ground Penetrating Radar (GPR) for the early detection of subsidence and sinkhole phenomena. The methodology was applied to a coastal urban area in Galicia, northwest Spain (humid region), showing apparent signs of subsidence and building settlement during the last two years. Two different InSAR methods are compared for the period from June 2021 to March 2022: PSI (Persistent Scatterer Interferometry) and SBAS (Small Baseline Subsets), and the average deformation velocities obtained resulted in −3.0 mm/yr and −4.1 mm/yr, respectively. Additional GPR data were collected in January 2022 to validate the InSAR results, which detected subsidence in agreement with the persistent scatters obtained from the PSI method. This is crucial information to plan preventive maintenance. |
| first_indexed | 2024-03-11T00:18:44Z |
| format | Article |
| id | doaj.art-b92f90be653240e9ba4904f641ae69f4 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-11T00:18:44Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-b92f90be653240e9ba4904f641ae69f42023-11-18T23:30:01ZengMDPI AGRemote Sensing2072-42922023-07-011515372910.3390/rs15153729Using InSAR and GPR Techniques to Detect Subsidence: Application to the Coastal Area of “A Xunqueira” (NW Spain)Alex Alonso-Díaz0Josué Casado-Rabasco1Mercedes Solla2Susana Lagüela3CINTECX, GeoTECH Research Group, Universidade de Vigo, 36310 Vigo, SpainDepartment of Cartographic and Terrain Engineering, Universidad de Salamanca, Calle Hornos Caleros, 50, 05003 Avila, SpainCINTECX, GeoTECH Research Group, Universidade de Vigo, 36310 Vigo, SpainDepartment of Cartographic and Terrain Engineering, Universidad de Salamanca, Calle Hornos Caleros, 50, 05003 Avila, SpainClimate change represents an important cause of subsidence, especially in coastal cities affected by changes in surface water level and water table. This paper presents a complementary study of Interferometric Synthetic Aperture Radar (InSAR) and Ground Penetrating Radar (GPR) for the early detection of subsidence and sinkhole phenomena. The methodology was applied to a coastal urban area in Galicia, northwest Spain (humid region), showing apparent signs of subsidence and building settlement during the last two years. Two different InSAR methods are compared for the period from June 2021 to March 2022: PSI (Persistent Scatterer Interferometry) and SBAS (Small Baseline Subsets), and the average deformation velocities obtained resulted in −3.0 mm/yr and −4.1 mm/yr, respectively. Additional GPR data were collected in January 2022 to validate the InSAR results, which detected subsidence in agreement with the persistent scatters obtained from the PSI method. This is crucial information to plan preventive maintenance.https://www.mdpi.com/2072-4292/15/15/3729climate changecoastal areassubsidenceInSARGPR |
| spellingShingle | Alex Alonso-Díaz Josué Casado-Rabasco Mercedes Solla Susana Lagüela Using InSAR and GPR Techniques to Detect Subsidence: Application to the Coastal Area of “A Xunqueira” (NW Spain) Remote Sensing climate change coastal areas subsidence InSAR GPR |
| title | Using InSAR and GPR Techniques to Detect Subsidence: Application to the Coastal Area of “A Xunqueira” (NW Spain) |
| title_full | Using InSAR and GPR Techniques to Detect Subsidence: Application to the Coastal Area of “A Xunqueira” (NW Spain) |
| title_fullStr | Using InSAR and GPR Techniques to Detect Subsidence: Application to the Coastal Area of “A Xunqueira” (NW Spain) |
| title_full_unstemmed | Using InSAR and GPR Techniques to Detect Subsidence: Application to the Coastal Area of “A Xunqueira” (NW Spain) |
| title_short | Using InSAR and GPR Techniques to Detect Subsidence: Application to the Coastal Area of “A Xunqueira” (NW Spain) |
| title_sort | using insar and gpr techniques to detect subsidence application to the coastal area of a xunqueira nw spain |
| topic | climate change coastal areas subsidence InSAR GPR |
| url | https://www.mdpi.com/2072-4292/15/15/3729 |
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