Tidal analysis of data recorded by a superconducting gravimeter

P. Baldi, G. Casula, S. Focardi, F. Palmonari

Abstract


A superconducting gravimeter was used to monitor the tidal signal for a period of five months. The instrument was placed in a site (Brasimone station, Italy) chat-acterized by a low noise level, and was calibrated with a precision of 0.2%. Then tidal analysis on hourly data was performed and the results presented in this paper; amplitudes, gravimetric factors, phase differences for the main tidal waves, M2, S2, N2, 01, Pl, K1, QI, were calculated together with barometric pressure admittance and long term instrumental drift.

Keywords


Earth tides;tidas analysis

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References


DOI: https://doi.org/10.4401/ag-4116
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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X