Results 91 to 100 of about 4,233 (235)
Geomagnetic Variability in a Post‐Superchron Geodynamo: Insights From the Deccan Traps
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.Abstract Studying long‐term geomagnetic field behavior is crucial for understanding Earth's evolution, as field variability reflects processes in the planet's deep interior. One key question concerns the relationship between field strength and polarity reversal frequency, particularly during the Cretaceous Normal Superchron (CNS), a prolonged interval ...
K. E. Bristol +6 more
wiley +1 more source
Virtual Reality Visualization by CAVE with VFIVE and VTK
, 2005 The CAVE-type virtual reality (VR) system was introduced for scientific visualization of large scale data in the plasma simulation community about a decade ago.
Kageyama, Akira +2 more
core +1 more source
Geochemistry, Geophysics, GeosystemsPaleosecular variation analysis is a primary tool for characterizing ancient geomagnetic behavior and its evolution through time. This study presents a new high‐quality directional data set, paleosecular variation of the Paleogene (PSVP), with and ...
Y. A. Engbers +8 more
doaj +1 more source
Geodesy and Geodynamics, 2019 The observed Earth's polar motion on decadal time scales has long been conjectured to be excited by the exchange of equatorial angular momentum between the solid mantle and the fluid outer core, via the mechanism of electromagnetic (EM) core-mantle ...
Weijia Kuang +2 more
doaj +1 more source
A coupled core-mantle evolution: review and future prospects
Progress in Earth and Planetary Science, 2020 In this review, I provide the current status and future prospects for the coupled core-mantle evolution and specifically summarize the constraints arising from geomagnetism and paleomagnetism on the long-term secular variations of the geomagnetic field ...
Takashi Nakagawa
doaj +1 more source
Energy Fluxes during Dynamo Reversals
, 2013 Using direct numerical simulations of the equations of magnetohydrodynamics, we study reversals of the magnetic field generated by the flow of an electrically conducting fluid in a sphere.
Dormy, Emmanuel +3 more
core +2 more sources
Advances in geodynamo modelling
Geophysical & Astrophysical Fluid Dynamics, 2019 ABSTRACTThis paper reviews the remarkable developments in numerical geodynamo simulations over the last few years. Simulations with Ekman numbers as low as E=10−8E=10−8 are now within reach and more and more details of the observed field are recovered by computer models.
Johannes Wicht, Sabrina Sanchez
openaire +2 more sources
Earth and Space Science, Volume 12, Issue 12, December 2025.Abstract A mathematical and numerical framework is developed for modeling Earth's magnetic field and optimizing the trajectory of the whole system using geomagnetic observations. The conventional approach is adopted to model Earth's magnetic field in the source‐free region via the Gauss coefficient, for which the fast dynamical component for the mantle‐
Kuan Li
wiley +1 more source
Extracting scaling laws from numerical dynamo models
, 2013 Earth's magnetic field is generated by processes in the electrically conducting, liquid outer core, subsumed under the term `geodynamo'. In the last decades, great effort has been put into the numerical simulation of core dynamics following from the ...
Jackson, A., Stelzer, Z.
core +1 more source
Turbulent Geodynamo simulations
, 2017 This poster presents recent results from turbulent convective geodynamo at low magnetic Prandtl number, and focus on interesting dynamical features such as large-scale flow generation, the different behaviour observed in polar and equatorial regions, as well as temporal and spatial fluctuations.
Schaeffer, Nathanael +3 more
openaire +1 more source