Direct and inverse cascades in the geodynamo

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F08%3A00330263" target="_blank" >RIV/67985530:_____/08:00330263 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Direct and inverse cascades in the geodynamo

Original language description

The rapid rotation of planets causes cyclonic thermal turbulence in their cores which may generate the largescale magnetic fields observed outside the planets. We investigate numerically a model based on the geodynamo equations in simplified geometry, which enables us to reproduce the main features of small-scale geostrophic flows in physical and wave vector spaces. We find fluxes of kinetic and magnetic energy as a function of the wave number and demonstrate the co-existence of forward and inverse cascades. We also explain the mechanism of magnetic field saturation at the end of the kinematic dynamo regime.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DE - Earth magnetism, geodesy, geography

OECD FORD branch

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Project

<a href="/en/project/IAA300120704" target="_blank" >IAA300120704: Numerical models of the hydromagnetic processes and geodynamo in the Earth's core</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nonlinear Processes in Geophysics

ISSN

1023-5809

e-ISSN

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Volume of the periodical

15

Issue of the periodical within the volume

6

Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

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UT code for WoS article

000262410100006

EID of the result in the Scopus database

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