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jgrf1014-sup-0001-m01.movQuickTime video23709KMovie 1. Video of example calving event, Block, synchronized with seismic data (see Figure 5). As the video plays, a red line moves across the seismic data to illustrate the time of the video frame. Two different times are presented in the upper right corner of the video: (1) UTC and (2) time since ice is observed to begin falling from the terminus. This relative time is the same as is used in Figure 5. Still version of this calving event is presented as Figure 5. Below the video, seismic data from the vertical channel of BOOM is shown in two different views. In the middle panel is the unfiltered velocity seismogram, normalized to its maximum amplitude. At the bottom, we present a spectrogram of the same data, at frequencies ranging from 0.5 Hz to 50 Hz. The color scale is identical to that of Figure 5. Seismic data have been shifted backward in time to correct for the seismic wave travel time by using a wave speed of 1.9 km/s.
jgrf1014-sup-0002-m02.movQuickTime video25694KMovie 2. Video of example calving event, Flake, synchronized with seismic data (see Figure 6). As the video plays, a red line moves across the seismic data to illustrate the time of the video frame. Two different times are presented in the upper right corner of the video: (1) UTC and (2) time since ice is observed to begin falling from the terminus. This relative time is the same as is used in Figure 6. Still version of this calving event is presented as Figure 6. Below the video, seismic data from the vertical channel of BOOM is shown in two different views. In the middle panel is the unfiltered velocity seismogram, normalized to its maximum amplitude. At the bottom, we present a spectrogram of the same data, at frequencies ranging from 0.5 Hz to 50 Hz. The color scale is identical to that of Figure 6. Seismic data have been shifted backward in time to correct for the seismic wave travel time by using a wave speed of 1.9 km/s.
jgrf1014-sup-0003-t01.txtplain text document0KTab-delimited Table 1.
jgrf1014-sup-0004-t02.txtplain text document0KTab-delimited Table 2.

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