An analysis of working days contamination in micropulsation measurements

U. Villante, M. Vellante

Abstract


A long term analysis of the power of geomagnetic variations in the micropulsations band at L'Aquila (Italy) revealed a weekly variation represented by an increased level of power in the working days with respect to Sundays. The maximum increase, by a factor of ~1.2, occurs during morning hours in the 100-500 Hz band. A daily-light-saving time effect has been also identified. Some implications on a wider scientific context are discussed.

Keywords


Geomagnetic pulsations;man-made noise

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References


DOI: https://doi.org/10.4401/ag-4350
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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X