Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/4472
DC Field | Value | Language |
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dc.contributor.authorall | Greco, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | Budetta, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | Carbone, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | Panepinto, S.; Università di Palermo, Italy | en |
dc.contributor.authorall | Luzio, D.; Università di Palermo, Italy | en |
dc.date.accessioned | 2008-12-04T12:53:34Z | en |
dc.date.available | 2008-12-04T12:53:34Z | en |
dc.date.issued | 2007 | - |
dc.identifier.uri | http://hdl.handle.net/2122/4472 | en |
dc.description.abstract | This study summarizes the results obtained by using a processing method based on wavelet transform for noise-filtering of continuous gravity data. Continuous gravity recordings in vol- canic area could play a fundamental role in the monitoring of active volcanoes and in the prediction of eruptive events too. This geophysical methodology is used, on active volcanoes, in order to detect mass changes linked to magma transfer processes and, thus, to recognize forerunners to paroxysmal volcanic events. Spring gravimeters are still the most utilized in- struments for this type of microgravity studies. Unfortunately, spring gravity meters show a strong influence of meteorological parameters, especially in the adverse environmental condi- tions usually encountered at such places. As the gravity changes due to the volcanic activity are very small compared to other geophysical or instrumental effects, we need a new mathematical tool to get reliable gravity residuals susceptible to reflect the volcanic effect. The aim of the present work is to get a first evaluation about the comparison between the traditional filtering methodology and the wavelet transform. The overall results show that the performance of the wavelet-based filter seems better than the Fourier one. Moreover, the possibility of getting a multi-resolution analysis and study local features of the signal in the time domain makes the proposed methodology a valuable tool for gravity data processing. | en |
dc.language.iso | English | en_US |
dc.relation.ispartof | Applied and Industrial Mathematics in Italy | en_US |
dc.relation.ispartofseries | /2 (2007) | en_US |
dc.subject | wavelet transform | en |
dc.subject | volcanic monitoring | en |
dc.subject | gravimeter | en |
dc.title | The application of a denoising method aimed at reducing continuous gravity data | en_US |
dc.type | article | en |
dc.description.status | Published | en_US |
dc.description.pagenumber | 1-10 | en_US |
dc.subject.INGV | 04. Solid Earth::04.03. Geodesy::04.03.06. Measurements and monitoring | en |
dc.identifier.doi | 10.1685/CSC06091 | en_US |
dc.relation.references | 1. Budetta G. and Carbone D., Temporal variations in gravity at Mt Etna (Italy) asso- ciated with the 1989 and 1991 eruptions, Bull. Volcanol. (1998) 59 pp. 311–326. 2. Carbone D., Budetta G., Greco, F. and Rymer H., Combined discrete and continuous gravity observations at Mount Etna, J. Volcanol. Geotherm. Res. (2003) 123 pp. 123- 135. 3. Coifman R.R. and Wickerhauser M.V., Wavelets and adapted waveform analysis. A toolkit for signal processing and numerical analysis, Proceeding of Symposia in Applied Mathematics (1993) 47 pp. 119-145. 4. Daubechiens I., Ten lectures on Wavelets, Society for Industrial and Applied Mathe- matics (1992). 5. Dehant V., Tidal parameters for an inelastic Earth, Phys. Earth Planet. Inter. (1997) 49 pp. 97-116. 6. El Wahabi A., Ducarme B., van Ruymbeke M. d’Orey N. and Somerhausen A., Con- tinuous gravity observations at Mount Etna (Sicily) and correlations between tem- perature and gravimetric records, Cahiers du Centre Europen de Godynamique et de S`eismologie (1997) 14 pp. 105-119. 7. Fedi M. and Quarta T., Wavelet analysis for the regional residual and local separation of the potential fields anomalies, Geoph. Prospecting (1998) 46 pp. 507-525. 8. Tamura Y., A harmonic development of the tide-generating potential, Bull. Inf. Marees Terrestres (1997) 99 pp. 6813-6855. 9. Torge W., Gravimetry, ed. Walter de Gruyter, Berlin-New York (1989). 10. Van Camp M. and Vauterin P., Tsoft: graphical and interactive software for the anal- ysis of time series and Earth tides, Computer & Geosciences (2005) 31 pp. 631-640. 11. Wahr J.M., Body tides on an elliptical, rotating, elastic and oceanless Earth, Geophys. J. R. Astron. Soc. (1981) 64 pp. 677-703. 12. Wenzel H. G., The nanogal software: Earth tide data processing package ETERNA 3.30, Bull. Inf. Marees Terrestres (1996) 124 pp. 9425-9439. 13. Zschau J. and Wang R., Imperfect elasticity in the Earth’s mantle. Implication for Earth tides and period deformation, Proc. of the 9th International Symposium on Earth Tides, New York (1987) pp. 605-629. | en |
dc.description.obiettivoSpecifico | 1A. Geomagnetismo e Paleomagnetismo | en_US |
dc.description.journalType | N/A or not JCR | en_US |
dc.description.fulltext | open | en |
dc.contributor.author | Greco, F. | - |
dc.contributor.author | Budetta, G. | - |
dc.contributor.author | Carbone, D. | - |
dc.contributor.author | Panepinto, S. | - |
dc.contributor.author | Luzio, D. | - |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en_US |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en_US |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en_US |
dc.contributor.department | Università di Palermo, Italy | en_US |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Università degli Studi di Palermo, CFTA, Palermo | - |
crisitem.author.orcid | 0000-0002-0265-5073 | - |
crisitem.author.orcid | 0000-0003-2566-6290 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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Greco et al 2007_Simai.pdf | Main Article | 527.42 kB | Adobe PDF | View/Open |
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