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  Cooling patterns in rotating thin spherical shells — Application to Titan's subsurface ocean

Amit, H., Choblet, G., Tobie, G., Terra-Nova, F., Čadek, O., & Bouffard, M. (2020). Cooling patterns in rotating thin spherical shells — Application to Titan's subsurface ocean. Icarus, 338: 113509. doi:10.1016/j.icarus.2019.113509.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-541D-C Version Permalink: http://hdl.handle.net/21.11116/0000-0006-541E-B
Genre: Journal Article

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 Creators:
Amit, Hagay, Author
Choblet, Gaël, Author
Tobie, Gabriel, Author
Terra-Nova, Filipe, Author
Čadek, Ondřej, Author
Bouffard, Mathieu1, Author              
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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 Abstract: We use rotating convection simulations in a thin spherical shell to study fluid dynamics in subsurface oceans of icy moons. We find two types of persistent results, characterized by larger outer boundary heat flux either at polar regions or at the equatorial region. Simulations corresponding to larger Rossby numbers result in polar cooling with moderate lateral heterogeneity in heat flux, whereas lower Rossby numbers give equatorial cooling with more pronounced heat flux heterogeneity. The polar cooling scenario is in agreement with inferences for the heat flux at the top of Titan's ocean, which may provide a dynamical constraint for the vigor of convection in this layer. Our results may help unraveling the internal dynamics and the interactions among the different layers within the hydrosphere of Titan. Possible implications for the deep interiors of other icy moons are envisaged.

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Language(s): eng - English
 Dates: 2020
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.icarus.2019.113509
 Degree: -

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Title: Icarus
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier B.V.
Pages: - Volume / Issue: 338 Sequence Number: 113509 Start / End Page: - Identifier: ISSN: 0019-1035
CoNE: https://pure.mpg.de/cone/journals/resource/954922645023