论文信息 - Estimation of water dimers contribution to the water vapour continuum absorption within 0.94 and 1.13 μm bands

Estimation of water dimers contribution to the water vapour continuum absorption within 0.94 and 1.13 μm bands

In this paper we investigate the water vapour continuum absorption retrieved from experimental high-resolution Fourier-Transform-Spectroscopy spectra, obtained earlier from high-temperature and pressure pure water vapour measuremets. The retrieved spectra of the water vapour continuum, related to the least-studied today near-IR absorption bands at 8800 and 10600 cm-1, are described on the basis of the water dimer hypothesis of the continuum. It is shown that water dimers should cause, at least, half of the water vapour continuum absorption in the studied spectral region. The temperature dependence of the effective dimerization constant is derived.

I. V. Ptashnik | A. A. Simonova | I. Ptashnik

[1] Devin A Matthews,et al. Calculation of vibrational transition frequencies and intensities in water dimer: comparison of different vibrational approaches. , 2008, The journal of physical chemistry. A.

[2] Andrew K. Mollner,et al. Communication: determination of the bond dissociation energy (D0) of the water dimer, (H2O)2, by velocity map imaging. , 2011, The Journal of chemical physics.

[3] I. V. Ptashnik,et al. Water vapour self-continuum and water dimers: 1. Analysis of recent work , 2011 .

[4] Jean-Luc Moncet,et al. Development and recent evaluation of the MT_CKD model of continuum absorption , 2012, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences.

[5] A. Vilesov,et al. Spectrum and infrared intensities of OH-stretching bands of water dimers. , 2010, The Journal of chemical physics.

[6] Jonathan Tennyson,et al. An upper limit for water dimer absorption in the 750 nm spectral region and a revised water line list , 2010 .

[7] C. Leforestier. Water dimer equilibrium constant calculation: a quantum formulation including metastable states. , 2014, The Journal of chemical physics.

[8] I. V. Ptashnik,et al. Water vapor continuum absorption in the 2.7 and 6.25 μm bands at decreased temperatures , 2016 .

[9] Yohann Scribano,et al. Water dimers in the atmosphere III: equilibrium constant from a flexible potential. , 2006, The journal of physical chemistry. A.