  We present broadband dual frequency comb laser absorption measurements of 2%
H$_2$O (natural isotopic abundance of 99.7% H$_2^{16}$O) in air from 6600-7650
cm$^{-1}$ (1307-1515 nm) with a spectral point spacing of 0.0068 cm$^{-1}$.
Twenty-nine datasets were collected at temperatures between 300 and 1300 K
($\pm$0.82% average uncertainty) and pressures ranging from 20 to 600 Torr
($\pm$0.25%) with an average residual absorbance noise of 8.0E-4 across the
spectrum for all measurements. We fit measurements using a quadratic
speed-dependent Voigt profile to determine 7088 absorption parameters for 3366
individual transitions found in HITRAN2020. These measurements build on the
line strength, line center, self-broadening, and self-shift parameters
determined in the Part I companion of this work. Here we measure air-broadened
width (with temperature- and speed-dependence) and air pressure shift (with
temperature dependence) parameters. Various trends are explored for
extrapolation to weak transitions that were not covered in this work.
Improvements made in this work are predominantly due to the inclusion of air
pressure shift temperature dependence values. In aggregate, these updates
improved RMS absorbance error by a factor of 4.2 on average, and the remaining
residual is predominantly spectral noise. This updated database improves high
temperature spectroscopic knowledge across the 6600 7650 cm$^{-1}$ region of
H$_2$O absorption.
