Optika Atmosfery i Okeana Journal

Vol. 31, issue 08, article # 1

Rodimova O. B. Continuum absorption in the IR CO₂ spectrum. // Optika Atmosfery i Okeana. 2018. V. 31. No. 08. P. 595–600. DOI: 10.15372/AOO20180801 [in Russian].
Copy the reference to clipboard

Abstract:

The Н₂О and СО₂ continuum absorption within the IR bands depends on the accepted bound of the local line contribution. Correlation between the maximum bound of the local line contribution and the line shape at large frequency detunings is observed for the 4.3, 2.7, 1.4, and 1.2 mm СО₂ bands, H₂O rotational band, and 1400–1900, 3500–3900, and 5200–5500 cm^-1 Н₂О bands. The continuum absorption can be unambiguously determined from measurement data in the band wings if it is assumed to be exhaustively continual there. Within the bands, the continuum absorption is ambiguously determined depending on the bound of the local line contribution.

Keywords:

carbon dioxide, continuum absorption, spectral line wings

References:

    1.    Clough S.A., Kneizys F.X., Davies R.W. Line shape and the water vapor continuum // Atmos. Res. 1989. V. 23, N 3–4. P. 229–241.
   2. Klimeshina T.E., Rodimova O.B. Continuum absorption in the 4.3-mm CO₂ band // Proc. SPIE. 20th Intern. Symp. on Atmos. and Ocean Opt. Atmos. Phys. 2014. V. 9292. P. 92920H.
   3. Winters B.H., Silverman S.J., Benedict W.S. Line shape in the wing beyond the band head of the 4.3 mm band of CO₂ // J. Quant. Spectrosc. Radiat. Transfer. 1964. V. 135, N 4. P. 527–537.
   4. Burch D.E., Gryvnak D.A., Patty R.R., Bartky Ch.E. Absorption of infrared radiant energy by CO₂ and H₂O. IV. Shapes of collision-broadened CO₂ lines // J. Opt. Soc. Am. 1969. V. 59, N 3. P. 267–280.
   5. Burch D.E., Gryvnak D.A. Absorption of infrared radiant energy by CO₂ and H₂O. V. Absorption by CO₂ between 1100 and 1835 cm^-¹ (9.1–5.5 mm) // J. Opt. Soc. Am. 1971. V. 61, N 4. P. 499–503.
   6. Bulanin M.O., Bulychev V.P., Granskij P.V., Kouzov A.P., Tonkov M.V. Issledovanie funktsij propuskaniya CO₂ v oblasti polos 4.3 i 15 mm // Problemy fiziki atmosfery. L.: Izd-vo LGU, 1976. Iss. 13. P. 14–24.
   7. Bulanin M.O., Dokuchaev A.B., Tonkov M.V., Filipov N.N. Influence of the line interference on the vibratio-rotation band shapes // J. Quant. Spectrosc. Radiat. Transfer. 1984. V. 31, N 6. P. 521–543.
   8. Cousin C., LeDoucen R., Boulet C., Henry A., Robert D. Line coupling in the temperature and frequency dependence of absorption in the microwindows of the 4.3-mm CO₂ band // J. Quant. Spectrosc. Radiat. Transfer. 1986. V. 36, N 6. P. 521–538.
   9. Hartmann J.M., Perrin M.Y. Measurements of pure CO₂ absorption beyond the n₃ band at high temperatures // Appl. Opt. 1989. V. 28, N 13. P. 2550–2553.
10. Boissoles J., Menoux V., Le Doucen R., Boulet C., Robert D. Collisionally induced population transfer effect in infrared absorption spectra. III. Temperature dependence of absorption in the Ar-broadened wing of CO₂ n₃ band // J. Chem. Phys. 1990. V. 93, N 4. P. 2217–2221.
11. Tran H., Boulet C., Stefani S., Snels M., Piccioni G. Measurements and modelling of high pressure pure CO₂ spectra from 750 to 8500 cm^-¹. I – Central and wing regions of the allowed vibrational bands // J. Quant. Spectrosc. Radiat. Transfer. 2011. V. 112, N 6. P. 925–936.
12. Le Doucen R., Cousin C., Boulet C., Henry A. Temperature dependence of the absorption in the region beyond the 4.3 mm band of CO₂. I: Pure CO₂ case // Appl. Opt. 1985. V. 24, N 6. P. 897–906.
13. Nesmelova L.I., Rodimova O.B., Tvorogov S.D. Kontur spektral'noj linii i mezhmolekulyarnoe vzaimodejstvie. Novosibirsk: Nauka, 1986. 216 p.
14. Bogdanova Yu.V., Rodimova O.B. Line shape in far wings and water vapor absorption in a broad temperature interval // J. Quant. Spectrosc. Radiat. Transfer. 2010. V. 111, N 15. P. 2298–2307.
15. Klimeshina T.E., Petrova T.M., Rodimova O.B., Solodov A.A., Solodov A.M. Pogloshchenie CO₂ v kryl'yah polos v blizhnem IK-diapazone // Optika atmosf. i okeana. 2015. V. 28, N 4. PС. 291–297; Klemeshina T.E., Petrova T.M., Rodimova O.B., Solodov A.A., Solodov A.M. СО₂ Absorption in Band Wings in Near IR // Atmos. Ocean Opt. 2015. V. 5. P. 387–393.
16. Mondelain D., Vasilchenko S., Čermák P., Kassi S., Campargue A. The CO₂ absorption spectrum in the 2.3 mm transparency window by high sensitivity CRDS: (II) Self-absorption continuum // J. Quant. Spectrosc. Radiat. Transfer. 2017. V. 187. P. 38–43.
17. Rodimova O.B. Kontinual'noe pogloshchenie v spektre uglekislogo gaza [Elektronnyj resurs] // Optika atmosf. i okeana. Fiz. atmos.: Sb. dokl. XXIII Mezhdunar. simp. Tomsk: Izd-vo IOA SO RAN, 2017. P. А89–А92. 1 CD-ROM.
18. Nesmelova L.I., Rodimova O.B., Tvorogov S.D. Pogloshchenie izlucheniya v kolebatel'no-vrashchatel'nyh spektrah molekul. Metodika rascheta i ee primenenie k CO₂. Dep. v VINITI. 1983. N 6367-83.