Measurements of CO2-broadened half-widths of 31 transitions belonging
to the v(1), 2v(2), and v(3) bands of water vapor were made at T = 294
.4 K. Calculations following the formalism of Robert and Bonamy with a
n electrostatic and atom-atom interaction potential and dynamics corre
ct to second order in time were performed for 562 transitions relevant
to the 1- to 2.5-mu m region. The calculations were compared with the
measurements made in this work, a recent study by Langlois et al. (J.
iMol. Spectrosc. 167, 272-281, 1994), and an earlier work by Varanasi
et al. (J. Quant. Spectrosc. Radiat. Transfer. 11, 223-230, 1971). Th
e calculations compared with experiment show average percent differenc
es of +12, +1.5, and -8, respectively, for the works listed above. Unf
ortunately there are no common lines measured by the different groups
so a direct comparison of the measurements is not possible. Calculatio
ns of the temperature dependence of the halfwidths were made for 34 tr
ansitions. The temperature dependence of the half-widths determined fr
om theory and the measurements of Langlois et al. agree reasonably wel
l with two exceptions. (C) 1995 Academic Press, Inc.