Abundance maps of H₂O for the models with no cavity (top row), a 1 AU cavity (middle row), and a 5 AU cavity (bottom row) for the grids with an input stellar spectrum with L_* = 0.2 L_⊙ (first column), L_* = 0.4 L_⊙ (second column), L, = 0.8 L_⊙ (third column), and L_* = 1.4 L_⊙ (the fiducial grid, fourth column). The H₂O snowline (defined as n_gas/n_ice = 1) is indicated with a solid light blue line. The dashed, dark blue line shows the dust τ = 1 surface at 15 µm. The yellow contours indicate the region in which 90% of the H₂O 11_3,9 − 10_0,10 line emission at 17.22 µm (E_up = 2438 K) originates.