Results 11 to 20 of about 15,450 (291)
Dynamic mode decomposition of the geomagnetic field over the last two decades
Earth and Planetary Physics, 2023 Earth's magnetic field, which is generated in the liquid outer core through the dynamo action, undergoes changes on timescales of a few years to several million years, yet the underlying mechanisms responsible for the field variations remain to be ...
JuYuan Xu, YuFeng Lin
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Four decades of European geomagnetic secular variation and acceleration
Annals of Geophysics, 2009 <p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Times;"><span style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: x-small;"><span style="font-size: 10px;"><span style="font-family: Times, Arial, Helvetica ...
Monika Korte +2 more
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Геофизический журнал, 2014 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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Geomagnetic Dipole Changes and Upwelling/Downwelling at the Top of the Earth's Core
Frontiers in Earth Science, 2018 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?
Annals of Geophysics, 1995 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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Earth, Planets and Space, 2021 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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Evidence for a geomagnetic jerk in 1990 across Europe
Annals of Geophysics, 1995 The analysis of geomagnetic data from magnetic observatories demonstrated the existence of very rapid changes, or jerks, in the secular variation, especially the occurrence of the well known geomagnetic jerks of 1969 and 1978.
A. Meloni, L. Cafarella
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First Full Vector Archeomagnetic Data From Northern Mexico
Geochemistry, Geophysics, Geosystems, 2021 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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Atmosphere, 2021 The Earth’s ionosphere presents long-term trends that have been of interest since a pioneering study in 1989 suggesting that greenhouse gases increasing due to anthropogenic activity will produce not only a troposphere global warming, but a cooling in ...
Ana G. Elias +5 more
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Geomagnetic secular variation [PDF]
Eos, Transactions American Geophysical Union, 1971 This review attempts to reference the works on geomagnetic secular change that have appeared by authors based, even if temporarily, in the United States since 1967. It is thus an extension of the last portion of the paper given for the 1967 ‘Main Geomagnetic Field’ IUGG report [Cain, 1967], excluding the topics of field models and magnetic surveys ...
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