SAR interferometry from satellite and ground-based system for monitoring deformations on the Stromboli volcano

• Published in: IGARSS 2004. 2004 IEEE International Geoscience and Remote Sensing Symposium Vol. 1
• Main Authors: Antonello, G., Tarchi, D., Casagli, N., Farina, P., Guerri, L., Leva, D.
• Format: Conference Proceeding
• Language: English
• Published: Piscataway NJ IEEE 2004
• Subjects: Acceleration; Applied geophysics; Crystalline rocks; Earth sciences; Earth, ocean, space; Exact sciences and technology; Fluctuations; Igneous and metamorphic rocks petrology, volcanic processes, magmas; Internal geophysics; Monitoring; Radar measurements; Satellites; Spaceborne radar; Synthetic aperture radar interferometry; Terrain factors; Tsunami; Volcanoes; Aeolian Islands; Tyrrhenian Sea; West Mediterranean; Stromboli; effusion; interferometry; Space remote sensing; ERS; evolution; monitoring; acceleration; synthetic aperture radar; rockfalls; fluctuations; displacements; landslides; imagery; spatiotemporal variations; deformation; tsunamis; slope angle; Mediterranean Sea; collapse
• ISBN: 0780387422; 9780780387423
• DOI: 10.1109/IGARSS.2004.1369108

After the collapse of a landslide of 20 million m/sup 3/ from the NE slope of the Stromboli volcano and the subsequent tsunami at the end of December 2002, a ground-based InSAR system (interferometric synthetic aperture radar) was installed on the flank of the Sciara del Fuoco, a collapse depression formed 5 million BP. Through the radar measurement it has been possible to assess the deformation field over a large portion of the target area and to differentiate different processes. Twelve months of radar monitoring have permitted to follow the temporal and spatial evolution of the mass movement in the Sciara. The landslide showed wide fluctuations in the displacement rate, between 0.6 and 10 mm/h, with acceleration phases coinciding with episodes of more intense effusive activity. The dynamic of the volcano has been also studied through the use of DInSAR from satellite platform. Different images acquired from the ERS2 satellite before and after the collapse of the landslide have been interferometrically processed in order to extract information about the ground deformation occurred on the island due to the volcanic activity.