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dc.contributor.authorTorta, Joan Miquel-
dc.contributor.authorGarcía García, Alicia-
dc.contributor.authorCurto, Juan José-
dc.contributor.authorSantis, Angelo de-
dc.date.accessioned2008-06-06T14:26:51Z-
dc.date.available2008-06-06T14:26:51Z-
dc.date.issued1992-12-
dc.identifier.citationPhysics of the Earth and Planetary Interiors, 74: 209-217 (1992)en_US
dc.identifier.issn0031-9201-
dc.identifier.urihttp://hdl.handle.net/10261/4856-
dc.descriptionFinal full-text version of the paper available at: http://www.sciencedirect.com/science/journal/00319201en_US
dc.description.abstractA model of the secular variation (SV) of the geomagnetic field over Spain and adjacent regions, using a particular application of spherical cap harmonic analysis (SCHA), is given. SCHA was directly applied as presented in a previous paper; however, some drawbacks were detected, making evident the limitations of the technique for fields with low spatial harmonic content, as in the case for SV over relatively small regions. After trying some alternative approaches to the conventional procedure, it has been discovered that the solution lies in increasing the cap half-angle (but the data continue to be restricted within the original cap) to obtain more suitable harmonic contributions. It is shown that inspection of the spatial power spectra of the SV field on different spherical caps is useful in selecting the cap half-angle.en_US
dc.description.sponsorshipThis work is part of research project No. PB87-0390 supported by the D.G.I.C.Y.T., Ministerio de Educación y Ciencia, Spain.en_US
dc.format.extent22195 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsclosedAccessen_US
dc.subjectGeophysicsen_US
dc.subjectGeomagnetismen_US
dc.subjectSecular variationen_US
dc.subjectSpherical Cap Harmonic Analysis (SCHA)en_US
dc.subjectSpainen_US
dc.titleNew representation of geomagnetic secular variation over restricted regions by means of spherical cap harmonic analysis: application to the case of Spainen_US
dc.typeArtículoen_US
dc.identifier.doi10.1016/0031-9201(92)90011-J-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/10.1016/0031-9201(92)90011-J-
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