FIG. 1.

Radial density profile of the center of mass of the water molecules confined in the 40 $\text{Å}$ pore (black line), the 30 $\text{Å}$ pore (red line), and the 20 $\text{Å}$ pore (blue line) for (a) T = 250 K, (b) 230 K, (c) 220 K, and (d) 210 K. The dashed lines indicated the radius of the pore. The 30 $\text{Å}$ pore is offset by 0.2 g/cc and the 20 $\text{Å}$ pore is offset by 0.4 g/cc.