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http://hdl.handle.net/2122/9715
Authors: | Aranzulla, M.* Cannavò, F.* Scollo, S.* |
Title: | Detection of Volcanic Plumes by GPS: the 23 November 2013 Episode on Mt. Etna | Journal: | ANNALS OF GEOPHYSICS | Series/Report no.: | fast track 2/57(2014) | Issue Date: | 2014 | Keywords: | volcanic ash GPS |
Subject Classification: | 04. Solid Earth::04.03. Geodesy::04.03.06. Measurements and monitoring | Abstract: | The detection of volcanic plumes produced during explosive eruptions is important to improve our under- standing on dispersal processes and reduce risks to aviation operations. The ability of Global Position-ing System (GPS) to retrieve volcanic plumes is one of the new challenges of the last years in volcanic plume de - tection. In this work, we analyze the Signal to Noise Ratio (SNR) data from 21 permanent stations of the GPS network of the Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, that are located on the Mt. Etna (Italy) flanks. Being one of the most explosive events since 2011, the eruption of November 23, 2013 was chosen as a test-case. Results show some variations in the SNR data that can be correlated with the presence of an ash-laden plume in the atmosphere. Benefits and limitations of the method are highlighted. |
Appears in Collections: | Article published / in press |
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Aranzulla_et_al_2014.pdf | 2.49 MB | Adobe PDF | View/Open |
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