Fig. 3
From: Assessment of S-net seafloor pressure data quality in view of seafloor geodesy
Noise level of S-net stations defined by various quantities. a Root-mean-square (RMS) amplitude of long-period (longer than 30 d) component. RMS was calculated after the drift, expressed as exponential plus linear function of time, was subtracted from the filtered waveform. Pressure power spectra and pressure/temperature records obtained at stations indicated as ‘a’ to ‘e’ are shown in Fig. 2 and Fig. 4, respectively. b Logged power ratio (LPR) before temperature correction. c LPR following temperature correction. LPRs are calculated from 24 to 720 h in period