Fig. 2: Power partition of the continuous ocean-bottom-seismometer (OBS) data for various frequency bands, 2019.
From: Ocean-bottom and surface seismometers reveal continuous glacial tremor and slip
a Velocity spectra (power spectral density–probability density functions, PSD–PDFs) of the OBS three-component data. b Associated H/V spectral ratio (for accelerations). c Density plots of the normalized noise amplitude variation for all considered frequency bands. The magenta curve indicates the lowest noise level in each band. The dashed blue line indicates the timing of the major calving event on 29 July.
