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Hydromagnetic dynamos in rotating non-uniformly stratified spherical fluid shells in dependence on the Rayleigh number

SYSNO ASEP	0363811
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Hydromagnetic dynamos in rotating non-uniformly stratified spherical fluid shells in dependence on the Rayleigh number
Author(s)	Šimkanin, Ján (GFU-E)_{ORCID, RID} Hejda, Pavel (GFU-E)_{ORCID, RID} Saxonbergová, Dana (UFA-U)_{RID, ORCID}
Source Title	Physics of the Earth and Planetary Interiors. - : Elsevier - ISSN 0031-9201 Roč. 185, č. 3-4 (2011), s. 100-106
Number of pages	7 s.
Language	eng - English
Country	NL - Netherlands
Keywords	hydromagnetic dynamo ; non-uniform stratification ; penetrative convection ; Rayleigh number
Subject RIV	DE - Earth Magnetism, Geodesy, Geography
R&D Projects	IAA300120704 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z30120515 - GFU-E (2005-2011)
	AV0Z30420517 - UFA-U, BC-A (2005-2011)
UT WOS	000289926000005
DOI	10.1016/j.pepi.2011.02.002
Annotation	We present an investigation of dynamo in non-uniformly stratified spherical shells dependent on the Rayleigh number and thickness of a stable stratified sub-shell with emphasis on the case characterized by the identical thicknesses of both sub-shells. Our previous study of rotating convection showed that this case of stratification is a typical extreme case. However, the dynamo action in the shell characterized by the identical thicknesses of both sub-shells is not the typical extreme case. The generated magnetic field is close to the cases of uniform stratification and non-uniform one if the thickness of a stable stratified sub-shell is smaller than the thickness of an unstable stratified sub-shell.
Workplace	Geophysical Institute
Contact	Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028
Year of Publishing	2012

Number of the records: 1