Fig. 4: Waveform modeling for observed PKiKP waveforms sampling in anomalous inner core boundary (ICB) regions.
From: Small-scale layered structures at the inner core boundary
a The best-fitting models (red lines) were adopted in (b), the black lines are the iasp91 model, gray dash line is the ICB. b Synthetic seismograms of best-fitting models (red) and observed PKiKP waveforms (black) sampling in IA1, IA2, IA3, IA4, IA5, and IA6 regions in Fig. 3a (IA denotes ICB anomalous region), cc is the correlation coefficient. c Sketch of the ICB beneath the study region.
