DIFFERENTIAL INTERFEROMETRY AS A TOOL OF AN EARLY WARNING SYSTEM IN REDUCING THE VOLCANO RISK: THE CASE OF NISYROS VOLCANO

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Published: Jul 23, 2018
DOI: https://doi.org/10.12681/bgsg.16841
Is. Parcharidis
National Kapodistrian University of Athens, Laboratory of Geophysics, Department of Geophysics & Geothermics
E. Lagios
National Kapodistrian University of Athens, Laboratory of Geophysics, Department of Geophysics & Geothermics
V. Sakkas
National Kapodistrian University of Athens, Laboratory of Geophysics, Department of Geophysics & Geothermics
Abstract

In this study an attempt to evaluate the possibility to use the interferometric (InSAR) technique as an operational tool in an early warning system concerning the volcanic hazard, is presented. The InSAR techniques was appied in Nisyros volcanic island which during 1996-1998 show an intensive seismic unrest. Two interferometric images were created covering the period before the seismic activity (1995-1996). In the two interferometric images fringe patterns of deformation were recognized related to the ground deformation occured before the seismic unrest period. The operational capabilities of the technique is mainly restricted by the low repetitevily of the image aquisitions and the parameters to take in consideration like perpendicular baseline, atmospheric conditions etc

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  • Remote Sensing and GIS
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