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dc.contributor.author
Elias, Ana Georgina
dc.contributor.author
Fagre, Mariano
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Zossi, Bruno Santiago
dc.contributor.author
Amit, H.
dc.date.available
2022-12-21T14:25:47Z
dc.date.issued
2022-03
dc.identifier.citation
Elias, Ana Georgina; Fagre, Mariano; Zossi, Bruno Santiago; Amit, H.; Spitze Angle Changes during Rapid Geomagnetic Core Field Variation; SP MAIK Nauka/Interperiodica; Geomagnetism And Aeronomy; 61; S1; 3-2022; 134-142
dc.identifier.issn
0016-7932
dc.identifier.uri
http://hdl.handle.net/11336/181980
dc.description.abstract
The spitze phenomenon is an outstanding feature of electromagnetic wave propagation through the ionosphere. It consists in a ray path cusp that occurs between vertical propagation and a critical angle called the spitze angle. This angle that depends on the propagating wave frequency and on the geomagnetic field intensity and inclination, has gained renewed importance for its role in ionospheric modification by powerful radio wave experiments. Here we consider Earth?s magnetic field secular variation on two distinctive timescales. First, the most drastic scenario considered is a polarity reversal. We present consequent changes in the spitze angle for three plausible transitional scenarios. Second, we track changes during the past 115 years based on geomagnetic field observations. Globally, we find that the spitze spatial variation is determined mainly by geomagnetic inclination with larger values for smaller inclinations. However, locally the spitze time variation differs from site to site and may depend on the evolution of either field intensity or inclination. Despite the long-term timescales considered, understanding the origin of the spitze spatio-temporal variations on various timescales is important from a physical point of view to unravel magnetized plasma phenomena.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
SP MAIK Nauka/Interperiodica
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
RADIO WAVE PROPAGATION
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IONOSPHERE
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GEOMAGNETIC FIELD
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SPITZE
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Geociencias multidisciplinaria
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Spitze Angle Changes during Rapid Geomagnetic Core Field Variation
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-07-04T19:58:26Z
dc.journal.volume
61
dc.journal.number
S1
dc.journal.pagination
134-142
dc.journal.pais
Reino Unido
dc.journal.ciudad
Kiev
dc.description.fil
Fil: Elias, Ana Georgina. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina
dc.description.fil
Fil: Fagre, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina
dc.description.fil
Fil: Zossi, Bruno Santiago. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina
dc.description.fil
Fil: Amit, H.. Universite de Nantes; Francia. Centre National de la Recherche Scientifique; Francia
dc.journal.title
Geomagnetism And Aeronomy
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/10.1134/S0016793222010066
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1134/S0016793222010066
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