Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/1599
DC Field | Value | Language |
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dc.contributor.authorall | Fedi, M.; Dipartimento di Geofisica e Vulcanologia, Università di Napoli «Federico II», Napoli, Italy | en |
dc.contributor.authorall | Rapolla, A.; Dipartimento di Geofisica e Vulcanologia, Università di Napoli «Federico II», Napoli, Italy | en |
dc.date.accessioned | 2006-09-11T08:00:19Z | en |
dc.date.available | 2006-09-11T08:00:19Z | en |
dc.date.issued | 1997-10 | en |
dc.identifier.uri | http://hdl.handle.net/2122/1599 | en |
dc.description.abstract | Ambiguity of depth estimation of magnetic sources via spectral analysis can be reduced representing its field via a set of space-frequency atoms. This is obtained throughout a continuous wavelet transform using a Morlet analyzing wavelet. In the phase-plane representation even a weak contribution related to deep-seated sources is clearly distinguished with respect a more intense effect of a shallow source, also in the presence of a strong noise. Furthermore, a new concept of local power spectrum allows the depth to both the sources to be correctly interpreted. Neither result can be provided by standard Fourier analysis. Another method is proposed to reduce ambiguity by inversion of potential field data lying along the vertical axis. This method allows a depth resolution to gravity or the magnetic methods and below some conditions helps to reduce their inherent ambiguity. Unlike the case of monopoles, inversion of a vertical profile of gravity data above a cubic source gives correct results for the cube side and density. | en |
dc.format.extent | 3267329 bytes | en |
dc.format.mimetype | application/pdf | en |
dc.language.iso | English | en |
dc.relation.ispartofseries | 5/40 (1997) | en |
dc.subject | potential field | en |
dc.subject | wavelet | en |
dc.subject | interpretation | en |
dc.title | Space-frequency analysis and reduction of potential field ambiguity | en |
dc.type | article | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.subject.INGV | 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.contributor.author | Fedi, M. | en |
dc.contributor.author | Rapolla, A. | en |
dc.contributor.department | Dipartimento di Geofisica e Vulcanologia, Università di Napoli «Federico II», Napoli, Italy | en |
dc.contributor.department | Dipartimento di Geofisica e Vulcanologia, Università di Napoli «Federico II», Napoli, Italy | en |
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 | Dipartimento di Geofisica e Vulcanologia, L.go S. Marcellino 10, 80138 Napoli, Italy | - |
crisitem.author.dept | Dipartimento di Scienze della Terra, Università degli Studi di Napoli Federico II, Napoli, Italy | - |
crisitem.author.orcid | 0000-0002-2145-2271 | - |
crisitem.classification.parent | 04. Solid Earth | - |
Appears in Collections: | Annals of Geophysics |
Files in This Item:
File | Description | Size | Format | |
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19 fedi.pdf | 3.19 MB | Adobe PDF | View/Open |
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