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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3970
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dc.contributor.authorallDe Santis, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallTorta, J. M.; Observatori de l'Ebre, Roquetes, Spainen
dc.contributor.authorallGaya-Piqué, L. R.; Observatori de l'Ebre, Roquetes, Spainen
dc.date.accessioned2008-07-16T14:11:37Zen
dc.date.available2008-07-16T14:11:37Zen
dc.date.issued2002-04-18en
dc.identifier.urihttp://hdl.handle.net/2122/3970en
dc.description.abstractSpherical Cap Harmonic Analysis has been applied to obtain a reference model of geomagnetic secular change for Antarctica valid for the last forty years. In this paper, we use the latest available observatory data to update this model and to compare it with the 8th generation IGRF. In addition, the selected set of total field values used for the generation of the Oersted Initial Field Model have been employed together with observatory data to develop the first complete Antarctic Reference Model (ARM). This model improves the fit to the secular variation deduced from observatory data by about 60% relative to IGRF, and the fit to observatory and satellite field data by 8%. The model allows merging data sets taken at different altitudes and epochs in Antarctica, where significant temporal geomagnetic variations occur.en
dc.language.isoEnglishen
dc.publisher.nameAGUen
dc.relation.ispartofGeophysical Research Lettersen
dc.relation.ispartofseries8 / 29 (2002)en
dc.subjectGeomagnetic reference fieldsen
dc.subjectGeomagnetic spatial variations (all harmonics and anomalies)en
dc.subjectGeomagnetic time variations - secular and long termen
dc.titleThe first Antarctic geomagnetic Reference Model (ARM)en
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber1192en
dc.subject.INGV04. Solid Earth::04.05. Geomagnetism::04.05.03. Global and regional modelsen
dc.subject.INGV04. Solid Earth::04.05. Geomagnetism::04.05.04. Magnetic anomaliesen
dc.subject.INGV04. Solid Earth::04.05. Geomagnetism::04.05.05. Main geomagnetic fielden
dc.identifier.doi10.1029/2002GL014675en
dc.relation.referencesChiappini, M., R. R. B. von Frese, and J. Ferris, Effort to develop magnetic anomaly database aids Antarctic research, Eos Trans. AGU, 79, 290, 1998. De Bernardis, P., P. A. R. Ade, J. J. Bock, J. R. Bond, J. Borill, A. Bosaleri, K. Coble, B. P. Crill, G. De Gasperis, P. C. Farese, P. G. Ferreira, K. Ganga, M. Giacometti, E. Hivon, V. V. Hristov, A. Iacoangeli, A. H. Jaffe, A. E. Lange, L. Martinis, S. Masi, P. Mason, P. D. Mauskopf, A. Melchiorri, L. Miglio, T. Montroy, C. B. Netterfield, E. Pascale, F. Piacentini, D. Pogosyan, S. Prunet, S. Rao, G. Romeo, J. E. Ruhl, F. Scaramuzzi, D. Sforna, and N. Vittorio, A flat universe from high-resolution maps of the cosmic microwave background radiation, Nature, 404, 955– 959, 2000. De Santis, A., M. Chiappini, J. M. Torta, and R. R. B. von Frese, Development of an improved geomagnetic reference field for Antarctica, Annali di Geofisica, 42(2), 265– 270, 1999. Haines, G. V., Spherical cap harmonic analysis, J. Geophys. Res., 90, 2583– 2591, 1985. Haines, G. V., Modelling geomagnetic secular variation by main-field differences, Geophys. J. Intern., 114, 490– 500, 1993. Haines, G. V., and J. M. Torta, Determination of equivalent current sources from spherical cap harmonic models of geomagnetic field variations, Geophys. J. Intern., 118, 499– 514, 1994. Haines, G. V., and L. R. Newitt, The Canadian Geomagnetic Reference Field 1995, J. Geomag. Geoelec., 49, 317– 336, 1997. Kotze´, P. B., Spherical cap modelling of Oersted magnetic field vectors over southern Africa, Earth Planets and Space, 53, 357– 361, 2001. Mandea, M., and S. Macmillan, International Geomagnetic Reference Field - The Eighth Generation, Earth Planets and Space, 52, 1119– 1124, 2000. Olsen, N., R. Holme, G. Hulot, T. Sabaka, T. Neubert, L. Toeffner-Clausen, F. Primdahl, J. Joergensen, J.-M. Leger, D. Barraclough, J. Bloxham, J. Cain, C. Constable, V. Golovkov, A. Jackson, P. Kotze´, B. Langlais, S. Macmillan, M. Mandea, J. Merayo, L. Newitt, M. Purucker, T. Risbo, M. Stampe, A. Thomson, and C. Voorhies, Oersted Initial Field Model, Geophys. Res. Lett., 27, 3607, 2000. Torta, J. M., A. Garcı´a, and A. De Santis, A geomagnetic reference field for Spain at 1990, J. Geomag. Geoelectr., 45, 573– 588, 1993. Torta, J. M., A. De Santis, M. Chiappini, and R. R. B. von Frese, A model of the secular change of the geomagnetic field for Antarctica, Tectonophysics, in press, 2002.en
dc.description.journalTypeJCR Journalen
dc.description.fulltextreserveden
dc.contributor.authorDe Santis, A.en
dc.contributor.authorTorta, J. M.en
dc.contributor.authorGaya-Piqué, L. R.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentObservatori de l'Ebre, Roquetes, Spainen
dc.contributor.departmentObservatori de l'Ebre, Roquetes, Spainen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.orcid0000-0002-3941-656X-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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