Heliocentric radial velocity distributions for M31 RGB stars (gray histograms; Section 3.1) in the NE shelf fields. We show the empirical velocity model derived for each field from the 50th percentile values of the marginalized posterior probability distributions (thick red lines; Section 3.2, Table 3). We constructed the velocity models from a kinematically hot halo-like component with fixed mean and standard deviation (thin solid orange lines; Gilbert et al. 2018) and KCCs corresponding predominantly to NE shelf substructure (thin dotted and dashed red lines). We also show the median velocity of the disk predicted for each field assuming its presence (black arrows; Section 3.2.3).