Email this article On the Ekman instability at the core–mantle boundary
- Authors: Chkhetiani O.G.1,2, Shalimov S.L.3,2
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Affiliations:
- Obukhov Institute of Atmospheric Physics
- Space Research Institute
- Schmidt Institute of Physics of the Earth
- Issue: Vol 52, No 3 (2016)
- Pages: 337-343
- Section: Article
- URL: https://journal-vniispk.ru/1069-3513/article/view/223653
- DOI: https://doi.org/10.1134/S1069351316030022
- ID: 223653
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Abstract
It is shown that the instability of turbulent flows with Ekman velocity profiles in the vicinity of the core–mantle boundary leads to the formation of horizontally oriented circulating roll structures. The geophysical implications of the presence of such structures in the liquid core are explored, namely, the formation of the hot zones with enhanced conductivity and their influence on geomagnetic reversals.
About the authors
O. G. Chkhetiani
Obukhov Institute of Atmospheric Physics; Space Research Institute
Author for correspondence.
Email: pmsk7@mail.ru
Russian Federation, Pyzhevskii per. 3, Moscow, 119017; ul. Profsoyuznaya 84/32, Moscow, 117997
S. L. Shalimov
Schmidt Institute of Physics of the Earth; Space Research Institute
Email: pmsk7@mail.ru
Russian Federation, ul. B. Gruzinskaya 10, Moscow, 123995; ul. Profsoyuznaya 84/32, Moscow, 117997
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