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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: Towards probing Earth’s upper mantle with daily magnetic field variations: exploring a physics-based parametrization of the source

Fig. 6

Number of modes needed to explain 99% variance for each period, P = 24, 12, 8, 6, 4.8, and 4 h. The time series length is restricted to single months, and the FT segment length is varied between 24, 48, and 72 h. Note that January and December do not have the full months of data available, as the stream function spans 13.01.2009-16.12.2009

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