Results 151 to 160 of about 1,787 (204)
Magnetostratigraphic resolution of the late Ediacaran paleomagnetic enigma
Pierce J +13 more
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Magnetohydrodynamic Simulations of the Geodynamo
, 2003 Harder, Helmut +2 more
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On a spectral problem in magnetohydrodynamics and its relevance for the geodynamo [PDF]
GAMM Mitteilungen, 2018 One of the most remarkable features of the geodynamo is the irregular occurrence of magnetic field reversals. Starting with the operator theoretical treatment of a non-selfadjoint dynamo operator, we elaborate a dynamical picture of those reversals that ...
Christiane Tretter, Frank Stefani
exaly +3 more sources
Approaching a realistic force balance in geodynamo simulations
Proceedings of the National Academy of Sciences of the United States of America, 2016 Earth sustains its magnetic field by a dynamo process driven by convection in the liquid outer core. Geodynamo simulations have been successful in reproducing many observed properties of the geomagnetic field. However, although theoretical considerations
Scott Wolk +2 more
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The signature of inner-core nucleation on the geodynamo
Earth and Planetary Science Letters, 2017 International audienceEnergy considerations indicate that the power delivered to the present-day geodynamo comes mainly from the growth of the solid inner core, through light element and latent heat releases.
Julien Aubert +2 more
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EFFECT OF STRONG EARTHQUAKES ON THE GEODYNAMO
Доклады Российской академии наук. Науки о Земле, 2023Using the data of magnetic observations performed at the INTERMAGNET network observatories during the period of the double earthquake on March 16, 2022 (Japan), the global nature of the induced geomagnetic variations was demonstrated. Their synchronism and comparable amplitude over a wide range of distances from 210 km to ~10 000 km, the delay time ...
V. V. Adushkin, A. A. Spivak
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Paleomagnetism and the Nature of the Geodynamo
Science, 1990Records of direct observations of the earth's magnetic field cover less than a ten-millionth of the known lifetime of the field. Thus our knowledge of several geomagnetic phenomena, critical to our understanding of the geodynamo, must come from the paleomagnetic record.
R T, Merrill, P L, McFadden
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Intrinsic paleointensity bias and the long-term history of the geodynamo
Science Advances, 2017 Many geodynamo models predict an inverse relationship between geomagnetic reversal frequency and field strength. However, most of the absolute paleointensity data, obtained predominantly by the Thellier method from bulk volcanic rocks, fail to confirm ...
Marine S Foucher +2 more
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