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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/222372
Geomagnetic field measurements: instrument calibration and data processing
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In the field of geophysics, the time variations in the electric and magnetic fields are used to study solar activity and the geomagnetic field, and to characterise the electrical properties of the subsurface. It is important to know the operational range and limitations of the sensors and the data logger used for the data digitalization. Time series processing allows converting the recorded signals to the frequency and to calculate the transfer functions. The objective of this work is to compare the time series and geomagnetic transfer functions obtained with two different instruments and with the ones obtained using data from the Ebre Observatory. As the data were registered at
similar latitudes as the observatory, a comparison can be conducted with integrity. The results show some similarities and discrepancies between both the time signals and the transfer functions. It is also notable that none of the tested instruments performed better than the other in the collective outcome.
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Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2025, Tutora: Anna Martí Castells
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BERMÚDEZ GONZÁLEZ, Helena. Geomagnetic field measurements: instrument calibration and data processing. [consulted: 15 of June of 2026]. Available at: https://hdl.handle.net/2445/222372