Characteristic Seismic Waves Associated with Cryosphere Dynamics in Eastern Dronning Maud Land, East Antarctica
Figure 11
(upper) Recorded section for all the traces containing two large ice-quakes (event#; eq005; after [23]). Two identical signals can be clearly traced. The vertical axis starts from January 14, 2002, 14:03:20 (UTC). (lower) Contour map of PWS applied to these ice-quakes in the same time-window (modified after [23]). Peaks corresponding to two obvious events in the upper are indicated by white ellipses: peaks at (23 s, −0.135 s/km) and (51 s, −0.235 s/km). It is noted that high amplitudes found at the upper and lower left are artifacts caused by the PWS applied to zero-amplitude portions: since the zero amplitudes have the same value of phase components, a sum of the phase components should have a large value.
