Supplementary Materials for "Detection bias in PKiKP/PcP amplitude ratios from dense seismic arrays: Implications for density contrasts at the inner core boundary"

This dataset contains seismic array station metadata and PcP and PKiKP amplitude measurements used in the associated manuscript. It includes observations from seven seismic arrays, BCAR, BMAR, ILAR, IMAR, NVAR, PDAR, and TXAR. The archive contains one station metadata file ( arrays.csv ) and 14 observation files. For each array, the observations are divided into two groups. Files named obs_{ARRAY}_PKiKP.csv contain records in which PKiKP was identified, while files named obs_{ARRAY}_NoPKiKP.csv contain records in which PKiKP was not identified. Each observation record provides the earthquake origin time, event latitude and longitude, hypocentral depth, epicentral distance, PcP amplitude, amplitude measured within the predicted PKiKP time window, and the PKiKP to PcP amplitude ratio. All amplitudes are reported in nm/s. Detailed descriptions of the files and data fields are provided in README.md.