Absorptions of the ρστ, 0.8 μm and a bands of water vapor were measured using a long pathlength, multiple-traversal absorption cell. The band intensities were found to be 842.3, 53.2, and 50.12 cm-1/g-cm-2 at 334 K for the ρστ, 0.8 μm and a bands, respectively. The measured equivalent widths gradually exceed calculated values for the Lorentz line profile and the self-broadening coefficients of 5 with increasing absorber amounts. Possible causes of this excess absorption are discussed.
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