Results 11 to 20 of about 14,851 (262)
Four decades of European geomagnetic secular variation and acceleration
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Monika Korte +2 more
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Induction current contribution to the secular variation of geomagnetic field in accordance with the data of Ukrainian geomagnetic observatories has been investigated.
M.I. Orlyuk +3 more
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Secular variation of the geocenter [PDF]
The degree 1 deformations of Earth induced by a surface load are computed, in a reference frame related to the center of mass of the planet, using a theoretical approach (Love number formalism), at secular timescale, where Earth has a viscoelastic behavior.
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Jovimagnetic secular variation [PDF]
Long term variations of a planetary magnetic field are one of the few observables available in the study of planetary interiors and dynamo theory. While variations of the geomagnetic field were accessible to direct measurement for centuries, knowledge of the secular variations of other planetary dynamos is limited.
J. E. P. Connerney, M. H. Acuña
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Geomagnetic Dipole Changes and Upwelling/Downwelling at the Top of the Earth's Core
The convective state of the top of Earth's outer core is still under debate. Conflicting evidence from seismology and geomagnetism provides arguments for and against a thick stably stratified layer below the core-mantle boundary.
Ludovic Huguet +3 more
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Strong earthquakes and geomagnetic jerks: a cause-effect relationship?
Secular variation of the geomagnetic field observed at the Earth's surface has been found to undergo impulsive accelerations Gerks) lasting less than a few years. In this paper the relations between jerks and the occurrence of strong earthquakes (Ms ?
L. Alfonsi, F. Florindo
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Models of the geomagnetic field rely on magnetic data of high spatial and temporal resolution to give an accurate picture of the Earth’s internal magnetic field and its time-dependence.
Clemens Kloss +2 more
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On Analysis of the Secular Variation
It is noted that the time-scale of the secular variation of the geomagnetic field is rather short compared with the electromagnetic diffusion times appropriate to the earth's core. It is therefore suggested that the secular variation is primarily due to the rearrangement of pre-existing lines of force emanating from the core, and not due to the ...
P. H. ROBERTS, S. SCOTT
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Изменения геомагнитного поля Антарктики за последнее столетие
Определены особенности изменения геомагнитного поля в Антарктике в XX столетии по данным расчетов по модели IGRF (International Geomagnetic Reference Field) и наблюдений на обсерваториях. Получено, что в Южном полушарии полный вектор геомагнитного поля F
G. Melnyk +2 more
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First Full Vector Archeomagnetic Data From Northern Mexico
Several regional secular variation curves of the geomagnetic field have been proposed for Mexico over the last millennia. Despite a fairly large number of archeomagnetic data, these curves remain imprecise because of an uneven quality and geographic ...
B. Tchibinda Madingou +5 more
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