Spectral line shape derived using the asymptotic line wing theory (ALWT) with parameters obtained from fitting to experiment in the 8–12-μm spectral region, which describes the spectral and temperature behavior of water vapor absorption in this region, is used to calculate absorption in the longwave wing of the H2O rotational band. The absorption coefficient calculated with the ALWT takes into account absorption by any colliding molecular pairs, except for the absorption due to stable dimers. Application of this line shape to calculation of the absorption coefficient in the region 14–200 cm−1 allows us to extract the stable dimer absorption from the absorption measured with a special-resonator spectrometer. The dimer absorption spectrum derived shows consistency with the spectra from quantum-mechanical calculations and spectra measured in other experiments.
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P. W. Rosenkranz, “Pressure broadening of rotational bands. II. Water vapor from 300 to 1100 cm–1,” J. Chem. Phys. 87 (1), 163–170 (1987).
Q. Ma, R. H. Tipping, and C. Leforestier, “Temperature dependences of mechanisms responsible for the water-vapor continuum absorption: 1. Far wings of allowed lines,” J. Chem. Phys. 128 (12), 124313 (2008).
L. I. Nesmelova, O. B. Rodimova, and S. D. Tvorogov, Spectral Line Profile and Molecular Interaction (Nauka, Novosibirsk, 1986) [in Russian].
S. D. Tvorogov and O. B. Rodimova, Collisional Profile of Spectral Lines (Publishing House of IAO SB RAS, Tomsk, 2013) [in Russian].
E. A. Serov, T. A. Odintsova, M. Yu. Tretyakov, and V. E. Semenov, “On the origin of the water vapor continuum absorption within rotational and fundamental vibrational bands,” J. Quant. Spectrosc. Radiat. Transfer 193, 1–12 (2017).
I. V. Ptashnik, K. P. Shine, and A. A. Vigasin, “Water vapour self-continuum and water dimers: 1. Analysis of RECENT WORK,” J. Quant. Spectrosc. Radiat. Transfer 112, 1286–1303 (2011).
H. A. Gebbie, W. J. Burroughs, J. Chamberlain, J. E. Harries, and R. G. Jones, “Dimers of the water molecule in the Earth’s atmosphere,” Nature (Gr. Brit.) 221, 143–145 (1969).
J. S. Daniel, S. Solomon, R. W. Sanders, R. W. Portmann, D. C. Miller, and W. Madsen, “Implications for water monomer and dimer solar absorption for observations at Boulder, Colorado,” J. Geophys. Res., D 14 (104), 16785–16791 (1999).
C. Hill and R. Jones, “Absorption of solar radiation by water vapor in clear and cloudy skies: Implications for anomalous absorption,” J. Geophys. Res., D 7 (105), 9421–9428 (2000).
K. Pfeilsticker, A. Lotter, C. Peters, and H. Bosch, “Atmospheric detection of water dimers via near-infrared absorption,” Science 300 (5628), 2078–2080 (2003).
G. R. Low and H. G. Kjaergaard, “Calculation of OHstretching band intensities of the water dimer and trimer,” J. Chem. Phys. 110, 9104–9115 (1999).
M. A. Suhm, “How broad are water dimer bands?”, Science (Letter to the Editor) 304, 823 (2004).
S. Kassi, P. Macko, O. Naumenko, and A. Campargue, “The absorption spectrum of water near 750 nm by CW-CRDS: Contribution to the search of water dimer absorption,” Phys. Chem. Chem. Phys. 7, 2460–2467 (2005).
K. Pfeilsticker, A. Lotter, C. Peters, and H. Bosch, “Atmospheric field measurements for the detection water dimer (H2O)2,” in Abstr. of the CECAM Meeting “Water Dimers and Weakly Interacting Species in Atmospheric Modelling”, Lyon, France, April 25–27, 2005.
A. J. L. Shillings, S. M. Ball, M. J. Barber, J. Tennyson, and R. L. Jones, “An upper limit for water dimer absorption in the 750 nm spectral region and a revised water line list,” Atmos. Chem. Phys., No. 11, 4273–4287 (2011).
I. V. Ptashnik, “Water dimers: An “unknown” experiment,” Atmos. Ocean. Opt. 18 (4), 324–326 (2005).
D. E. Burch, US Air Force Geophys. Laboratory Rep. AFGL-TR-85-0036, Absorption by H2O in Narrow Windows between 3000–4200 cm–1 (Massachusetts, Hanscom Air Force Base, 1985).
D. P. Schofield and H. G. Kjaergaard, “Calculated OH-stretching and HOH-bending vibrational transitions in the water dimer,” Phys. Chem. Chem. Phys. 5, 3100–3105 (2003).
D. J. Paynter, I. V. Ptashnik, K. P. Shine, and K. M. Smith, “Pure water vapor continuum measurements between 3100 and 4400 cm–1: Evidence for water dimer absorption in near atmospheric conditions,” Geophys. Rev. Lett. 34, L12808 (2007).
I. V. Ptashnik, K. M. Smith, K. P. Shine, and D. A. Newnham, “Laboratory measurements of water vapour continuum absorption in spectral region 5000–5600 cm–1: evidence for water dimers,” Q. J. R. Meteorol. Soc 130, 2391–2408 (2004).
M. Yu. Tret’yakov, M. A. Koshelev, E. A. Serov, V. V. Parshin, T. A. Odintsova, and G. M. Bubnov, “Water dimer and the atmospheric continuum,” Phys.- Uspekhi 184 (11), 1199–1215 (2014).
T. A. Odintsova, M. Yu. Tretyakov, O. Pirali, and P. Roy, “Water vapor continuum in the range of rotational spectrum of H2O molecule: New experimental data and their comparative analysis,” J. Quant. Spectrosc. Radiat. Transfer 187, 116–123 (2017).
Yu. V. Bogdanova and O. B. Rodimova, “Discrimination of the water vapor dimmer spectrum within the rotational band of the monomer,” in Proc. of the XXIII Intern. Symp. Atmospheric and Ocean Optics. Atmospheric Physics (Publishing House of IAO SB RAS, Tomsk, 2017), p. A6–A9 [in Russian].
S. D. Tvorogov and L. I. Nesmelova, “Radiative processes in the wings of bands of atmospheric gases,” Izv. Akad. Nauk SSSR, Fiz. Atmos. Okeana 12 (6), 627–633 (1976).
E. P. Gordov and S. D. Tvorogov, Method of Semiclassical Representation in the Quantum Theory (Nauka, Novosibirsk, 1984) [in Russian].
S. D. Tvorogov and O. B. Rodimova, “Spectral line shape. I. Kinetic equation for arbitrary frequency detunings,” J. Chem. Phys. 102 (22), 8736–8745 (1995).
I. V. Ptashnik, R. A. McPheat, K. P. Shine, K. M. Smith, and R. G. Williams, “Water vapor self-continuum absorption in near-infrared windows derived from laboratory experiments,” J. Geophys. Res. 116, R. D16305 (2011).
D. J. Paynter, I. V. Ptashnik, K. P. Shine, K. M. Smith, R. McPheat, and R. G. Williams, “Laboratory measurements of the water vapour continuum in the 1200–8000 cm–1 region between 293 and 351 K,” J. Geophys. Res. 114, D21301 (2009).
I. V. Ptashnik, T. M. Petrova, Yu. N. Ponomarev, K. P. Shine, A. A. Solodov, and A. M. Solodov, “Near-infrared water vapour self-continuum at close to room temperature,” J. Quant. Spectrosc. Radiat. Transfer 120, 23–35 (2013).
O. B. Rodimova, “Spectral line shape and absorption in atmospheric windows,” Opt. Atmos. Okeana 28 (5), 460–473 (2015).
O. B. Rodimova, “Continuum water vapor absorption in the 4000–8000 cm–1 region,” Proc. SPIE—Int. Soc. Opt. Eng. 9680, 968002–1 (2015).
Yu. V. Bogdanova and O. B. Rodimova, “Line shape in far wings and water vapor absorption in a broad temperature interval,” J. Quant. Spectrosc. Radiat. Transfer 111 (15), 2298–2307 (2010).
Y. I. Baranov, W. J. Lafferty, Q. Ma, and R. H. Tipping, “Water-vapor continuum absorption in the 800–1250 cm–1 spectral region at temperatures from 311 to 363 K,” J. Quant. Spectrosc. Radiat. Transfer 109, 2291–2302 (2008).
T. E. Klimeshina and O. B. Rodimova, “Temperature dependence of the water vapor continuum absorption in the 3–5 µm spectral region,” J. Quant. Spectrosc. Radiat. Transfer 119, 77–83 (2013).
J. M. Hartmann, M. Y. Perrin, Q. Ma, and R. H. Tipping, “The infrared continuum of pure water vapor: Calculations and high-temperature measurements,” J. Quant. Spectrosc. Radiat. Transfer 49 (6), 675–691 (1993).
D. E. Burch, D. A. Gryvnak, and J. D. Pembrook, AFGL-TR-79-0054 (1979); Tech. Rep. AFCRL-TR-75-0420 (1975).
S. A. Clough, F. X. Kneizys, and R. W. Davies, “Line shape and the water vapor continuum,” Atmos. Res 23 (3–4), 229–241 (1989).
Q. Ma and R. H. Tipping, “The atmospheric water continuum in the infrared: Extension of the statistical theory of Rozenkranz,” J. Chem. Phys. 93 (10), 7066–7075 (1990).
V. B. Podobedov, D. F. Plusquellic, K. E. Siegrist, G. T. Fraser, Q. Ma, and R. H. Tipping, “New measurements of the water vapor continuum in the region from 0.3 to 2.7 THz,” J. Quant. Spectrosc. Radiat. Transfer 109, 458–467 (2008).
H. G. Kjaergaard, A. L. Garden, G. M. Chaban, R. B. Gerber, D. A. Matthews, and J. F. Stanton, “Calculation of vibrational transition frequencies and intensities in water dimer: Comparison of different vibrational approaches,” J. Phys. Chem., A 112, 4324–4335 (2008).
I. Buryak and A. A. Vigasin, “Classical calculation of the equilibrium constants for true bound dimers using complete potential energy surface,” J. Chem. Phys. 143, 23430-4–23430-8 (2015).
Original Russian Text © Yu.V. Bogdanova, O.B. Rodimova, 2018, published in Optika Atmosfery i Okeana.
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Bogdanova, Y.V., Rodimova, O.B. Ratio between Monomer and Dimer Absorption in Water Vapor within the H2O Rotational Band. Atmos Ocean Opt 31, 457–465 (2018). https://doi.org/10.1134/S1024856018050056
- water vapor
- water dimers
- spectral line wings
- microwave absorption