- 1Istituto Nazionale di Geofisica e Vulcanologia, ONT, Rome, Italy (alessandra.esposito@ingv.it)
- 2Dipartimento di Scienze, Università degli Studi “G. d’Annunzio”, Via dei Vestini 31, 66100 Chieti, Italy
- 3Centro inteRUniversitario per l’analisi Sismotettonica Tridimensionale (CRUST), 66100 Chieti, Italy
- 4Dipartimento di Scienze della Terra e del Mare, Università degli Studi di Palermo, Via Archirafi 22, 90123 Palermo, Italy
- 5Istituto di Geologia Ambientale e Geoingegneria, Consiglio Nazionale delle Ricerche (CNR-IGAG), P.le A. Moro, 5, 00185 Rome, Italy
- 6Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo—Sezione di Catania, Piazza Roma 2, 95123 Catania, Italy
The Aeolian Archipelago, situated in the Southern Tyrrhenian Sea, is a region where active fault systems and volcanic activities converge, making it a focal point for geodynamic studies. The Aeolian-Tindari-Letojanni (ATL) and Sisifo-Alicudi fault systems, located in the western portion of the archipelago, are key structures influencing the region's deformation patterns. To monitor and analyze these geodynamic processes, particularly concerning seismic and volcanic hazards, Global Navigation Satellite System (GNSS) observations are indispensable. In June 2023, a new local GNSS network was established on Salina Island, comprising five stations equipped with STONEX SC600+ GNSS receivers and SA1200 GNSS antennas. This network aims to provide high-precision data to better understand the island's deformation patterns and contribute to the broader geodynamic monitoring of the Aeolian Archipelago. Salina Island itself is composed of several stratovolcanoes, including Monte Fossa delle Felci and Monte dei Porri, which have been inactive in the Holocene epoch. The island's geological composition and proximity to active fault systems make it a critical location for monitoring ground deformation and assessing potential geohazards. The implementation of the GNSS network on Salina Island enhances the existing geodetic infrastructure in the Aeolian Islands, complementing other monitoring techniques such as Multi-Temporal Interferometric Synthetic Aperture Radar (MT-InSAR) (Pezzo et al., 2023). These combined methodologies allow for a comprehensive analysis of ground deformation, improving the understanding of volcanic and seismic hazards in the region. We evaluate the quality and continuity of the first two years GNSS data, assessing signal performance including multipath errors and cycle-slip occurrences and analysing time series, computed by using GAMIT/GLOBK 10.71 software, (Herring et al., 2018). Results indicate that the newly installed stations provide robust measurements, with error values consistent with international standards and comparable across the network.
Bibliography
- Herring, T.A., Floyd, M., Perry, M., 2018. Herring et al., 2018 - GAMIT-GLOBK for GNSS. GAMIT-GLOBK GNSS 1–48.
- Pezzo, G., Palano, M., Beccaro, L., Tolomei, C., Albano, M., Atzori, S., Chiarabba, C., 2023. Coupling Flank Collapse and Magma Dynamics on Stratovolcanoes: The Mt. Etna Example from InSAR and GNSS Observations. Remote Sens. 15, 847. https://doi.org/10.3390/rs15030847
How to cite: Esposito, A., Pietrolungo, F., Pezzo, G., Govoni, A., Soldati, G., Iannarelli, M., Terribili, A., Chiarabba, C., and Palano, M.: New GNSS Network on Salina Island: A Key Element in the Geodynamic Framework, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-18994, https://doi.org/10.5194/egusphere-egu25-18994, 2025.
