Молекулярная спектроскопия Молекулярная спектроскопия
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Figure 5. (A, B)The experimental water vapour self-continuum, derived from measurements made by Paynter et al. [41], in the 1600 and 3600 cm-1 water vapour bands at 295 K as compared to the expected spectra for bound and quasi- bound water dimers. The former is simulated using WD band intensities and positions from [9] (VPT2), Kbeq  (296 K)=0.03 atm-1 and Lorentzian profile FWHM=60 cm-1 for every WD subband. The spectrum of quasi-bound dimers is simulated using WM lines from HITRAN-2008 [52] with doubled intensities and Lorentzian width FWHM=20 cm-1 for every line (seeEq.(1)). The thick line demonstrates the total simulated spectrum of water dimers. Error bars show the experimental uncertainty of the continuum retrieval. (C, D)  Averaged spectra of the retrieved self-continuum Cs at different temperatures (left-hand axis) and the ratio of the spectra Cs (296 K)/Cs(351 K) (solid line; right-hand axis), illustrating the temperature dependence of the continuum. [

[9] Kjaergaard H, Garden A, Chaban G, Gerber R, Matthews D, Stanton J. Calculation of vibrational transition frequencies and intensities in water dimer: comparison of different vibrational approaches. J Phys Chem  A2008;112:4324–35 [HG Kjaergaard, personal communications,  2010].
41] Paynter DJ, Ptashnik IV, Shine KP, Smith KM, McPheat R, Williams RG.  Laboratory measurements of the water vapor continuum in the 1200–8000 cm-1 region between 293 K and 351 K. J Geophys Res 2009;114:D21301.
[52] Rothman LS, Gordon IE, Barbe A, Chris Benner A, Bernath PF, et al. The HITRAN 2008 molecular spectroscopic database. JQSRT 2009;110:533–72.



INTAS grants 00-189, 03-51-3394, гранты РФФИ 02-07-90139, 05-07-90196, 08-07-00318, 13-07-00411