Articles | Volume 15, issue 5
https://doi.org/10.5194/se-15-617-2024
https://doi.org/10.5194/se-15-617-2024
Research article
 | 
14 May 2024
Research article |  | 14 May 2024

On the impact of true polar wander on heat flux patterns at the core–mantle boundary

Thomas Frasson, Stéphane Labrosse, Henri-Claude Nataf, Nicolas Coltice, and Nicolas Flament

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Cited articles

Abdi, H. and Williams, L. J.: Principal component analysis, WIREs Comp. Stat., 2, 433–459, https://doi.org/10.1002/wics.101, 2010. a
Amit, H., Choblet, G., Olson, P., Monteux, J., Deschamps, F., Langlais, B., and Tobie, G.: Towards more realistic core-mantle boundary heat flux patterns: a source of diversity in planetary dynamos, Prog. Earth Planet. Sci., 2, 26, https://doi.org/10.1186/s40645-015-0056-3, 2015. a
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Heat flux heterogeneities at the bottom of Earth's mantle play an important role in the dynamic of the underlying core. Here, we study how these heterogeneities are affected by the global rotation of the Earth, called true polar wander (TPW), which has to be considered to relate mantle dynamics with core dynamics. We find that TPW can greatly modify the large scales of heat flux heterogeneities, notably at short timescales. We provide representative maps of these heterogeneities.
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