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arXiv · 2508.06143

Turbulence in the Geomagnetic Field at Earth Surface

Mingshu Zhao·Xiaoping Zeng·Yunfang Lin
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Abstract

We investigated turbulence-like behavior in the geomagnetic field using ground-based magnetic observatory data across China. Through analysis of spatial and temporal structure functions, we find power-law scaling consistent with Kolmogorov-like turbulence under extended self-similarity. We also identify significant correlations between vertical geomagnetic field variations and large earthquakes. The combination of turbulent characteristics with these correlations suggests a physical mechanism where solar activity provides energy that is transferred through turbulent processes to smaller scales, potentially contributing to earthquake triggering.

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Mingshu Zhao, Xiaoping Zeng, Yunfang Lin. 2025-08-08. Turbulence in the Geomagnetic Field at Earth Surface. https://arxiv.org/abs/2508.06143

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