Fig. 11.

Variation of acoustic wave energy flux with geometrical height computed using the component of velocity parallel to the magnetic field for full resolution (black), computed using the vertical component of the velocity for full resolution (red), computed using the vertical component of the velocity for degraded data at an effective resolution of 100 km (blue) and 200 km (green). Left (Right): integrating velocity power spectra within the frequency range 2–500 mHz (5–500 mHz).
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