Application of Time Series INSAR (SBAS) Method Using Sentinel-1 for Monitoring Ground Deformation of the Aegina Island (Western Edge of Hellenic Volcanic Arc)

Kalavrezou, Ioanna-Efstathia ; Castro-Melgar, Ignacio ; Nika, Dimitra ; Gatsios, Theodoros ; Lalechos, Spyros ; Parcharidis, Issaak

Resumen: 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.

Idioma: Inglés

DOI: 10.3390/land13040485

Año: 2024

Publicado en: Land 13, 4 (2024), 485 [16 pp.]
ISSN: 2073-445X

Factor impacto JCR: 3.2 (2024)

Categ. JCR: ENVIRONMENTAL STUDIES rank: 83 / 193 = 0.43 (2024) - Q2 - T2

Factor impacto CITESCORE: 5.9 - Nature and Landscape Conservation (Q1) - Ecology (Q1) - Global and Planetary Change (Q2)

Factor impacto SCIMAGO: 0.773 - Ecology (Q1) - Nature and Landscape Conservation (Q1) - Global and Planetary Change (Q2)

Tipo y forma: Article (Published version)