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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3961
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dc.contributor.authorallGaya-Piqué, L. R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallRavat, D.; Department of Geology 4324, Southern Illinois University Carbondale, Carbondale, IL 62901-4324, USAen
dc.contributor.authorallDe Santis, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallTorta, J. M.; Observatori de l’Ebre, CSIC - URL, Horta Alta 38, 43520 Roquetes, Spainen
dc.date.accessioned2008-07-15T06:21:40Zen
dc.date.available2008-07-15T06:21:40Zen
dc.date.issued2006en
dc.identifier.urihttp://hdl.handle.net/2122/3961en
dc.description.abstractUse of the International Geomagnetic Reference Field Model (IGRF) to construct magnetic anomaly maps can lead to problems with the accurate determination of magnetic anomalies that are readily apparent at the edges of local or regional magnetic surveys carried out at different epochs. The situation is severe in areas like Antarctica, where ionospheric activity is intense and only a few ground magnetic observatories exist. This makes it difficult to properly separate from ionospheric variations the secular variation of the core magnetic field. We examine two alternatives to the piecewise-continuous IGRF core magnetic field in Antarctica for the last 45 years: the present global Comprehensive Model (CM4) and the new version of the Antarctic Reference Model (ARM). Both these continuous models are better at representing the secular variation in Antarctica than the IGRF. Therefore, their use is recommended for defining the crustal magnetic field of Antarctica (e.g. the next generation of the Antarctic Digital Magnetic Anomaly Map).en
dc.language.isoEnglishen
dc.publisher.nameAntarctic Science Ltden
dc.relation.ispartofAntarctic Scienceen
dc.relation.ispartofseries1 / 18 (2006)en
dc.subjectgeomagnetic secular variationen
dc.subjectIGRFen
dc.subjectmagnetic anomaliesen
dc.subjectspherical harmonicsen
dc.titleNew model alternatives for improving the representation of the core magnetic field of Antarcticaen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber101-109en
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.doi10.1017/S0954102006000095en
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dc.description.obiettivoSpecifico1.6. Osservazioni di geomagnetismoen
dc.description.obiettivoSpecifico3.4. Geomagnetismoen
dc.description.obiettivoSpecifico5.3. Banche dati di geomagnetismo, aeronomia, clima e ambienteen
dc.description.journalTypeJCR Journalen
dc.description.fulltextreserveden
dc.contributor.authorGaya-Piqué, L. R.en
dc.contributor.authorRavat, D.en
dc.contributor.authorDe Santis, A.en
dc.contributor.authorTorta, J. M.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentDepartment of Geology 4324, Southern Illinois University Carbondale, Carbondale, IL 62901-4324, USAen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentObservatori de l’Ebre, CSIC - URL, Horta Alta 38, 43520 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.deptDepartment of Earth and Environmental Sciences, University of Kentucky-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptObservatori de l’Ebre, CSIC - URL, Horta Alta 38, 43520 Roquetes, Spain-
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-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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