High-precision gravity measurements using absolute and relative gravimeters at Mount Etna (Sicily, Italy)
Accurate detection of time gravity changes attributable to the dynamics of volcanoes requires high-precision gravity measurements. With the aim of improving the quality of data from the Mount Etna gravity network, we used both absolute and relative gravimeters in a hybrid method. In this report, som...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
2011-12-01
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| Series: | Annals of Geophysics |
| Subjects: | |
| Online Access: | http://www.annalsofgeophysics.eu/index.php/annals/article/view/5348 |
| _version_ | 1818364194260516864 |
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| author | Ciro Del Negro Luigi Fortuna Antonino Sicali Rosalba Napoli Gilda Currenti Filippo Greco Antonio Pistorio |
| author_facet | Ciro Del Negro Luigi Fortuna Antonino Sicali Rosalba Napoli Gilda Currenti Filippo Greco Antonio Pistorio |
| author_sort | Ciro Del Negro |
| collection | DOAJ |
| description | Accurate detection of time gravity changes attributable to the dynamics of volcanoes requires high-precision gravity measurements. With the aim of improving the quality of data from the Mount Etna gravity network, we used both absolute and relative gravimeters in a hybrid method. In this report, some of the techniques for gravity surveys are reviewed, and the results related to each method are compared. We show how the total uncertainty estimated for the gravity measurements performed with this combined use of absolute and relative gravimeters is roughly comparable to that calculated when the measurements are acquired using only relative gravimeters (the traditional method). However, the data highlight how the hybrid approach improves the measurement capabilities for surveying the Mount Etna volcanic area. This approach enhances the accuracy of the data, and then of the four-dimensional surveying, which minimizes ambiguities inherent in the gravity measurements. As a case study, we refer to two gravity datasets acquired in 2005 and 2010 from the western part of the Etna volcano, which included five absolute and 13 relative stations of the Etna gravity network. |
| first_indexed | 2024-12-13T22:00:29Z |
| format | Article |
| id | doaj.art-312836f634f640d692699965f769da03 |
| institution | Directory Open Access Journal |
| issn | 1593-5213 2037-416X |
| language | English |
| last_indexed | 2024-12-13T22:00:29Z |
| publishDate | 2011-12-01 |
| publisher | Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
| record_format | Article |
| series | Annals of Geophysics |
| spelling | doaj.art-312836f634f640d692699965f769da032022-12-21T23:30:00ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X2011-12-0154510.4401/ag-5348High-precision gravity measurements using absolute and relative gravimeters at Mount Etna (Sicily, Italy)Ciro Del NegroLuigi FortunaAntonino SicaliRosalba NapoliGilda CurrentiFilippo GrecoAntonio PistorioAccurate detection of time gravity changes attributable to the dynamics of volcanoes requires high-precision gravity measurements. With the aim of improving the quality of data from the Mount Etna gravity network, we used both absolute and relative gravimeters in a hybrid method. In this report, some of the techniques for gravity surveys are reviewed, and the results related to each method are compared. We show how the total uncertainty estimated for the gravity measurements performed with this combined use of absolute and relative gravimeters is roughly comparable to that calculated when the measurements are acquired using only relative gravimeters (the traditional method). However, the data highlight how the hybrid approach improves the measurement capabilities for surveying the Mount Etna volcanic area. This approach enhances the accuracy of the data, and then of the four-dimensional surveying, which minimizes ambiguities inherent in the gravity measurements. As a case study, we refer to two gravity datasets acquired in 2005 and 2010 from the western part of the Etna volcano, which included five absolute and 13 relative stations of the Etna gravity network.http://www.annalsofgeophysics.eu/index.php/annals/article/view/5348absolute and relative gravimetersuncertaintymicrogravimetryEtna volcanovolcano monitoring. |
| spellingShingle | Ciro Del Negro Luigi Fortuna Antonino Sicali Rosalba Napoli Gilda Currenti Filippo Greco Antonio Pistorio High-precision gravity measurements using absolute and relative gravimeters at Mount Etna (Sicily, Italy) Annals of Geophysics absolute and relative gravimeters uncertainty microgravimetry Etna volcano volcano monitoring. |
| title | High-precision gravity measurements using absolute and relative gravimeters at Mount Etna (Sicily, Italy) |
| title_full | High-precision gravity measurements using absolute and relative gravimeters at Mount Etna (Sicily, Italy) |
| title_fullStr | High-precision gravity measurements using absolute and relative gravimeters at Mount Etna (Sicily, Italy) |
| title_full_unstemmed | High-precision gravity measurements using absolute and relative gravimeters at Mount Etna (Sicily, Italy) |
| title_short | High-precision gravity measurements using absolute and relative gravimeters at Mount Etna (Sicily, Italy) |
| title_sort | high precision gravity measurements using absolute and relative gravimeters at mount etna sicily italy |
| topic | absolute and relative gravimeters uncertainty microgravimetry Etna volcano volcano monitoring. |
| url | http://www.annalsofgeophysics.eu/index.php/annals/article/view/5348 |
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