Fig. PDPS resolution of the supersolid phase. (a) Skin-bulk resolved ωH transition from 3150/3200 cm -1 for bulk ice/water to their skin mode of 3450 cm -1 . (b) Core-shell resolved ωD PDPS and (c) the fraction F(R) of skin phonon abundance . (d) Size dependent droplets supercooling . Supersolidity of (e) water bridge (inset) and ionic hydration cells of (f)