Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/5018
DC Field | Value | Language |
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dc.contributor.authorall | Caratori Tontini, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.authorall | Cocchi, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.authorall | Carmisciano, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.date.accessioned | 2009-04-15T06:23:52Z | en |
dc.date.available | 2009-04-15T06:23:52Z | en |
dc.date.issued | 2009-02-13 | en |
dc.identifier.uri | http://hdl.handle.net/2122/5018 | en |
dc.description.abstract | We show a set of forward model equations in the Fourier domain for calculating the 3-D gravity and magnetic anomalies of a given 3-D distribution of density or magnetization. One property of the potential field equations is that they are given by convolution products, providing a very simple analytic expression in the Fourier domain. Under this assumption, the domain of the density or magnetization parameters is connected by a biunivoc relationship with the data space, and potential field anomalies can be seen as filtered versions of the corresponding density or magnetization distributions. A very fine spatial discretization can be obtained by using a large number of points within a unique 3-D grid, where both the source distributions and field data are defined. The main advantage of this formulation is that it dramatically reduces execution times, providing a very fast forward model tool useful for modeling anomalies at different altitudes. We use this method to evaluate an average magnetization of 8 A/m for the Palinuro Seamount in the Tyrrhenian Sea (southern Italy), thus performing a joint interpretation of morphological and newly acquired magnetic data. | en |
dc.language.iso | English | en |
dc.publisher.name | AGU | en |
dc.relation.ispartof | Journal of Geophysical Research | en |
dc.relation.ispartofseries | / 114 (2009) | en |
dc.subject | potential field modeling | en |
dc.subject | Fourier transform | en |
dc.subject | Palinuro Seamount | en |
dc.title | Rapid 3-D forward model of potential fields with application to the Palinuro Seamount magnetic anomaly (southern Tyrrhenian Sea, Italy) | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | B02103 | en |
dc.subject.INGV | 04. Solid Earth::04.02. Exploration geophysics::04.02.02. Gravity methods | en |
dc.subject.INGV | 04. Solid Earth::04.02. Exploration geophysics::04.02.04. Magnetic and electrical methods | en |
dc.subject.INGV | 04. Solid Earth::04.03. Geodesy::04.03.04. Gravity anomalies | en |
dc.subject.INGV | 04. Solid Earth::04.05. Geomagnetism::04.05.04. Magnetic anomalies | en |
dc.subject.INGV | 05. General::05.01. Computational geophysics::05.01.05. Algorithms and implementation | en |
dc.identifier.doi | 10.1029/2008JB005907 | en |
dc.relation.references | Barnett, C. T. (1976), Theoretical modeling of the magnetic and gravitational fields of an arbitrarily shaped three-dimensional body, Geophysics, 41, 1353– 1364. Beccaluva, L., G. Gabbianelli, F. Lucchini, L. Rossi, and C. Savelli (1985), Petrology and K/Ar ages of volcanics dredged from the Aeolian seamounts: Implications for geodynamic evolution of the southern Tyrrhenian basin, Earth Planet. Sci. Lett., 74, 187– 208. Bhattacharyya, B. K. (1964), Magnetic anomalies due to prism-shaped bodies with arbitrary polarization, Geophysics, 29, 517– 531. Bhattacharyya, B. K. (1966), Continuous spectrum of the total-magnetic field anomaly due to a rectangular prismatic body, Geophysics, 31, 97– 121. Bhattacharyya, B. K. (1967), Some general properties of potential fields in space and frequency domain, Geoexploration, 5, 127–143. Blakely, R. J. (1995), Potential Theory in Gravity and Magnetic Applications, 441 pp., Cambridge Univ. Press, Cambridge, UK. Bott, M. H. P. 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Pedersen (1979), End corrections in potential field modeling, Geophys. Prosp., 27, 749– 760. Schouten, J. A., and K. McCamy (1972), Filtering marine magnetic anomalies, J. Geophys. Res., 77, 7089– 7099. Shuey, R. T., and A. S. Pasquale (1973), End corrections in magnetic profile interpretation, Geophysics, 38, 507–512. Singh, B., and D. Guptasarma (2001), New method for fast computation of gravity and magnetic anomalies from arbitrary polyhedra, Geophysics, 66, 521– 526. Singh, S. K., and F. J. Sabina (1978), Magnetic anomaly due to a vertical right cylinder with arbitrary polarization, Geophysics, 43, 173–178. Talwani, M. (1965), Computation with the help of a digital computer of magnetic anomalies caused by bodies of arbitrary shape, Geophysics, 30, 797– 817. Talwani, M., and M. Ewing (1960), Rapid computation of gravitational attraction of three-dimensional bodies of arbitrary shape, Geophysics, 25, 203– 225. Talwani, M., J. L. Worzel, and M. Landisman (1959), Rapid gravity computations for two-dimensional bodies with application to the Mendocino submarine fracture zone, J. Geophys. Res., 64, 49– 59. Turcotte, D. L. (1997), Fractals and Chaos in Geology and Geophysics, 397 pp., Cambridge Univ. Press, Cambridge, UK. | en |
dc.description.obiettivoSpecifico | 2.6. TTC - Laboratorio di gravimetria, magnetismo ed elettromagnetismo in aree attive | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Caratori Tontini, F. | en |
dc.contributor.author | Cocchi, L. | en |
dc.contributor.author | Carmisciano, C. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
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 Roma2, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.orcid | 0000-0001-7835-1116 | - |
crisitem.author.orcid | 0000-0001-7357-2147 | - |
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.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 05. General | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
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