Absorption of p-HO 1₁₁–0₀₀ versus p-H₂O 2₀₂–1₁₁ (continuum level subtracted) after removal of a wide component and then a narrow Gaussian component. The wide component is fitted in the lower left box. The removed wide spectrum is shown in the lower right box with a fit of the narrow component. The upper box shows the final result where the p-HO 1₁₁–0₀₀ spectrum intensity is scaled to the absorption level of p-H₂O 1₁₁–0₀₀. This shows the high similarity of both profiles. Intensities are in K in all boxes.