Maps of the velocity dispersion maps for the bar-oriented ${\sigma }_{v_{Xb}}$ (left panel) and ${\sigma }_{v_{Yb}}$ (right panel) components. Each population (metal-rich, metal-intermediate, and metal-poor) correspond to a column in each panel, and different height cuts are represented on each row (0 kpc <|Z| < 0.25 kpc, 0.25 kpc <|Z| < 0.5 kpc, and 0.5 kpc <|Z| < 1 kpc). The axes are bar-oriented, isodensity contours are shown as coloured lines, and a 1.5 kpc region around the GC is shown as a dotted black circle.