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Authors: | Svigkas, Nikos* Loupasakis, Constantinos* Tsangaratos, Paraskevas* Papoutsis, Ioannis* Kiratzi, Anastasia* Kontoes, Charalampos* |
Title: | A deformation study of Anthemountas graben (northern Greece) based on in situ data and new InSAR results | Journal: | Arabian Journal of Geosciences | Series/Report no.: | /13 (2020) | Publisher: | Springer | Issue Date: | 2020 | DOI: | 10.1007/s12517-020-05393-9 | Keywords: | Aquifer activity InSAR time-series |
Subject Classification: | 04.03. Geodesy 04.04. Geology |
Abstract: | The focus of this study is Anthemountas basin in northern Greece, where land subsidence phenomena had been previously identified. The basin has a NNW-SSE orientation, which is optimal to the currently acting ~ N-S extension field in the back-arc Aegean area and is bordered to its north and south edge by two, well-pronounced faults. The region of study is located close to the greater metropolitan city of Thessaloniki and comprises a number of critical facilities including the city’s international airport. The research object is the monitoring of the evolution of the displacement at Anthemountas graben, using InSAR time-series and the investigation of the dominant driving mechanism. We show new surface displacement results from the ENVISAR satellite, and overall, an enhanced dataset of SAR time-series is presented, spanning the period 1992 to 2010, by using the satellites ERS1, ERS2 and ENVISAT. Results indicate a continuously deforming environment in both decades, with an increasing magnitude. The detailed study of the deformation pattern together with the analysis of in situ data defines aquifer overpumping as the main cause of the detected displacement of both decades. Critical regions are examined in detail, as for example: an area close to Thermi, the town of Perea and the Thessaloniki’s international airport, a major hub of the Balkans. The latter was subjected to an increasing deforming velocity during the monitoring period. Overall, we conclude that a water management plan should be of high priority for the area. |
Appears in Collections: | Article published / in press |
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