Somma Vesuvius volcano: ground deformations from CGPS observations (2001-2012)
| Autor: | Francesco Obrizzo, Prospero De Martino, Umberto Tammaro, Folco Pingue, C. Serio, Andrea D’Alessandro, Giuseppe Brandi, Santa Malaspina, Mario Dolce |
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| Rok vydání: | 2013 |
| Předmět: |
CGPS
geography geography.geographical_feature_category business.industry lcsh:QC801-809 Subsidence (atmosphere) lcsh:QC851-999 Geodesy lcsh:Geophysics. Cosmic physics Geophysics Impact crater Volcano Gps data Ground deformation Gps network Global Positioning System lcsh:Meteorology. Climatology Somma-Vesuvius business Geology Seismology |
| Zdroj: | Annals of Geophysics, Vol 56, Iss 4 (2013) |
| ISSN: | 2037-416X 1593-5213 |
| DOI: | 10.4401/ag-6462 |
| Popis: | This paper is a contribution to the evaluation of ground deformations at Somma-Vesuvius volcano by means GPS measurements from 2001 to 2012. In this study we use a dataset from nine continuous GPS stations of the Neapolitan Volcanoes Continuous GPS network (NeVoCGPS), which covers the Neapolitan volcanic area, and is operated by the Istituto Nazionale di Geofisica e Vulcanologia. The GPS data processing is performed by the Bernese software v. 5.0. The results of the data processing show that the dynamics of the Somma-Vesuvio volcano, between 2001 and 2012, is characterized by a general subsidence, with maximum values on the Gran Cono at BKNO (−11.7 ± 0.65 mm/year) and BKE1 (−4.92 ± 0.36 mm/year) stations. The subsidence decrease from the crater down to the coast and the horizontal displacements are concentrated in Gran Cono area, the youngest part of the volcano. The parameters of the principal strain components indicate that Somma-Vesuvius is affected by a predominant contraction phase, which is concentrated in the areas with the greatest altitudes. |
| Databáze: | OpenAIRE |
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