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On the reflection of Alfvén waves and its implication for Earth's core modelling

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Academic year: 2021

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Figure

Figure 1. Reflection coefficient for a 1-D Alfv´en wave packet hitting an insulating boundary with normal incidence, as a function of Pm and for different magnetic Lundquist numbers Lu = V a L/ η
Figure 2. Snapshot of the azimuthal velocity component of Alfv´en waves propagating in a non-rotating spherical shell
Figure 3. Reflection coefficient for a TAW for insulating and no-slip bound- bound-ary conditions, as a function of Pm
Figure 4. Space–time diagrams of the reflection of a TAW for S  10 4 and  = 0.02 recorded in the equatorial plane, near the equator

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