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Application of time series INSAR (SBAS) method using Sentinel-1 for monitoring ground deformation of the Aegina Island (Western Edge of Hellenic Volcanic Arc)
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SYSNO ASEP 0585847 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Application of time series INSAR (SBAS) method using Sentinel-1 for monitoring ground deformation of the Aegina Island (Western Edge of Hellenic Volcanic Arc) Author(s) Kalavrezou, I. E. (GR)
Castro-Melgar, Ignacio (GFU-E) RID
Nika, D. (GR)
Gatsios, T. (GR)
Lalechos, S. (GR)
Parcharidis, I. (GR)Article number 485 Source Title Land. - : MDPI
Roč. 13, č. 4 (2024)Number of pages 16 s. Publication form Online - E Language eng - English Country CH - Switzerland Keywords volcanic risk ; ground deformation ; SBAS method ; Sentinel-1 ; Aegina Island ; Hellenic Volcanic Arc OECD category Volcanology Method of publishing Open access Institutional support GFU-E - RVO:67985530 UT WOS 001210734400001 EID SCOPUS 85191372100 DOI https://doi.org/10.3390/land13040485 Annotation This study employs advanced synthetic aperture radar (SAR) techniques, specifically the small baseline subset (SBAS) method, to analyze ground deformation dynamics on Aegina, a volcanic island within the Hellenic Volcanic Arc. Using Sentinel-1 satellite data spanning January 2016 to May 2023, this research reveals different deformation behaviors. The towns of Aegina and Saint Marina portray regions of stability, contrasting with central areas exhibiting subsidence rates of up to 1 cm/year. The absence of deformation consistent with volcanic activity on Aegina Island aligns with geological records and limited seismic activity, attributing the observed subsidence processes to settlement phenomena from past volcanic events and regional geothermal activity. These findings reinforce the need for continuous monitoring of the volcanic islands located in the Hellenic Volcanic Arc, providing important insights for local risk management, and contributing to our broader understanding of geodynamic and volcanic processes. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2025 Electronic address https://www.mdpi.com/2073-445X/13/4/485
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