Shell models of magnetohydrodynamic turbulence
F Plunian, R Stepanov, P Frick - Physics Reports, 2013 - Elsevier
Shell models of hydrodynamic turbulence originated in the seventies. Their main aim was to
describe the statistics of homogeneous and isotropic turbulence in spectral space, using a …
describe the statistics of homogeneous and isotropic turbulence in spectral space, using a …
[HTML][HTML] A dynamical prospective on interannual geomagnetic field changes
Geomagnetic observations from satellites have highlighted interannual variations in the rate
of change of the magnetic field originating from Earth's core. Downward continued to the …
of change of the magnetic field originating from Earth's core. Downward continued to the …
Turbulent geodynamo simulations: a leap towards Earth's core
We present an attempt to reach realistic turbulent regime in direct numerical simulations of
the geodynamo. We rely on a sequence of three convection-driven simulations in a rapidly …
the geodynamo. We rely on a sequence of three convection-driven simulations in a rapidly …
Efficient spherical harmonic transforms aimed at pseudospectral numerical simulations
N Schaeffer - Geochemistry, Geophysics, Geosystems, 2013 - Wiley Online Library
In this paper, we report on very efficient algorithms for spherical harmonic transform (SHT).
Explicitly vectorized variations of the algorithm based on the Gauss‐Legendre quadrature …
Explicitly vectorized variations of the algorithm based on the Gauss‐Legendre quadrature …
Planetary gyre, time‐dependent eddies, torsional waves, and equatorial jets at the Earth's core surface
We report a calculation of time‐dependent quasi‐geostrophic core flows for 1940–2010.
Inverting recursively for an ensemble of solutions, we evaluate the main source of …
Inverting recursively for an ensemble of solutions, we evaluate the main source of …
The interplay of fast waves and slow convection in geodynamo simulations nearing Earth's core conditions
J Aubert, N Gillet - Geophysical Journal International, 2021 - academic.oup.com
Ground observatory and satellite-based determinations of temporal variations in the
geomagnetic field probe a decadal to annual timescale range where Earth's core slow …
geomagnetic field probe a decadal to annual timescale range where Earth's core slow …
Dynamo-based limit to the extent of a stable layer atop Earth's core
The existence of a stably stratified layer underneath the core–mantle boundary (CMB) has
been recently revived by corroborating evidences coming from seismic studies, mineral …
been recently revived by corroborating evidences coming from seismic studies, mineral …
[HTML][HTML] Core eigenmodes and their impact on the Earth's rotation
Abstract Changes in the Earth's rotation are deeply connected to fluid dynamical processes
in the outer core. This connection can be explored by studying the associated Earth …
in the outer core. This connection can be explored by studying the associated Earth …
[HTML][HTML] The transition to Earth-like torsional oscillations in magnetoconvection simulations
Evidence for torsional oscillations (TOs) operating within the Earth's fluid outer core has
been found in the secular variation of the geomagnetic field. These waves arise via …
been found in the secular variation of the geomagnetic field. These waves arise via …
Excitation of travelling torsional normal modes in an Earth's core model
N Gillet, D Jault, E Canet - Geophysical Journal International, 2017 - academic.oup.com
The proximity between the 6 yr recurrence time of the torsional Alfvén waves that have been
inferred in the Earth's outer core over 1940–2010 and their 4 yr traveltime across the fluid …
inferred in the Earth's outer core over 1940–2010 and their 4 yr traveltime across the fluid …