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http://hdl.handle.net/2122/14100| Authors: | Nunnari, Giuseppe* Cannavò, Flavio* |
Title: | Online detection of offsets in GPS time series | Journal: | Earth Science Informatics | Series/Report no.: | /14 (2021) | Publisher: | Springer | Issue Date: | 2021 | DOI: | 10.1007/s12145-020-00517-x | Abstract: | This paper deals with the online offset detection in GPS time series recorded in volcanic areas. The interest for this problem lies in the fact that an offset can indicate the opening of eruptive fissures. A Change Point Detection algorithm is applied to carry out, in an online framework, the offset detection. Experimental results show that the algorithm is able to recognize the offset generated by the Mount Etna eruption, occurred on December 24, 2018, with a delay of about 4 samples, corresponding to 40 min, compared to the best offline detection. Furthermore, analysis of the trade-off between success and false alarms is carried out and discussed. |
| Appears in Collections: | Article published / in press |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2020 - Nunnari and Cannavo (Earth Science Informatics, GPS anomaly).pdf | 3.87 MB | Adobe PDF | View/Open |
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