Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7457
Authors: Pistorio, A.* 
Greco, F.* 
Currenti, G.* 
Napoli, R.* 
Sicali, A.* 
Del Negro, C.* 
Fortuna, L.* 
Title: High-precision gravity measurements using absolute and relative
Journal: Annals of Geophysics 
Series/Report no.: 5/54 (2011)
Issue Date: Jul-2011
DOI: 10.4401/ag-5348
Keywords: absolute and relative gravimeters
uncertainty
microgravity
Etna volcano
Subject Classification04. Solid Earth::04.02. Exploration geophysics::04.02.02. Gravity methods 
Abstract: 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.
Appears in Collections:Article published / in press

Files in This Item:
File Description SizeFormat
Pistorio et al 2011 AG.pdf821.67 kBAdobe PDFView/Open
Show full item record

WEB OF SCIENCETM
Citations

10
checked on Feb 10, 2021

Page view(s) 20

454
checked on Mar 16, 2024

Download(s) 50

346
checked on Mar 16, 2024

Google ScholarTM

Check

Altmetric