State-to-state cross-sections in Ų as a function of relative kinetic energy (in cm^-1) for the para-H₂O transitions: from level 4(2₁₁) to 1(0₀₀) 1a), to 2(1₁₁) 1b), to 3(2₀₂) 1c); from level 7(3₂₂) to 1(0₀₀) 2a), to 2(1₁₁) 2b), to 4(2₁₁); and from level 16(4₄₀) to 2(1₁₁) 3a), to 10(3₃₁) 3b), to 14(5₂₄) 3c), with the following para-H₂ transitions: (black), (red), (green) and (blue).