### Abstract

Air-broadening coefficients of the water isotopologue HD^{16}O up to J = 50 for P, Q and R branches calculated using different methods are presented. For partially labeled lines ("good" quantum numbers: J, symmetry and level number) we combined three methods for calculating half-widths: J-dependence and JJ'-dependence up to J=15 and averaging coefficients calculated using a previously developed semi-empirical method for high J (15-50). For lines with full assignments based on normal modes v _{1}, v_{2}, v_{3}, K_{a}, K_{c} we used: (a) an analytical model (approximation) which depends on use of rotational quantum numbers J and K_{a} for both the upper and lower levels; and (b) a method based on the estimate of the averaged energy differences between coupled states. The comparison of calculated data with broadening coefficients from HITRAN-2008 and available experimental data is presented. The resulting broadening coefficients can be used to calculate spectra of water vapor with hundreds millions of weak lines with reasonable accuracy. The line list VTT [Voronin, Tennyson, Tolchenov, MNRAS, 2010], supporting programs, files for calculations of spectra HD^{16}O and estimation of broadening coefficient are made freely available also in electronic form via http://www.exomol.com.

Original language | English |
---|---|

Title of host publication | Eighteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics |

Volume | 8696 |

DOIs | |

Publication status | Published - 1 Dec 2012 |

Event | 18th International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics - Irkutsk, Russian Federation Duration: 2 Jul 2012 → 6 Jul 2012 |

### Other

Other | 18th International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics |
---|---|

Country | Russian Federation |

City | Irkutsk |

Period | 2.7.12 → 6.7.12 |

### Fingerprint

### Keywords

- Half-width
- HDO spectrum
- VTT line-list

### ASJC Scopus subject areas

- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering

### Cite this

^{16}O transitions. In

*Eighteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics*(Vol. 8696). [869604] https://doi.org/10.1117/12.2008790

**Method of averaged energy differences of coupled states and other approaches for calculation line broadening parameters of HD ^{16}O transitions.** / Dudaryonok, A. S.; Voronin, B. A.; Lavrentieva, N. N.; Lugovskoy, A. A.; Starikov, V. I.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

^{16}O transitions. in

*Eighteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics.*vol. 8696, 869604, 18th International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, Irkutsk, Russian Federation, 2.7.12. https://doi.org/10.1117/12.2008790

^{16}O transitions. In Eighteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Vol. 8696. 2012. 869604 https://doi.org/10.1117/12.2008790

}

TY - GEN

T1 - Method of averaged energy differences of coupled states and other approaches for calculation line broadening parameters of HD16O transitions

AU - Dudaryonok, A. S.

AU - Voronin, B. A.

AU - Lavrentieva, N. N.

AU - Lugovskoy, A. A.

AU - Starikov, V. I.

PY - 2012/12/1

Y1 - 2012/12/1

N2 - Air-broadening coefficients of the water isotopologue HD16O up to J = 50 for P, Q and R branches calculated using different methods are presented. For partially labeled lines ("good" quantum numbers: J, symmetry and level number) we combined three methods for calculating half-widths: J-dependence and JJ'-dependence up to J=15 and averaging coefficients calculated using a previously developed semi-empirical method for high J (15-50). For lines with full assignments based on normal modes v 1, v2, v3, Ka, Kc we used: (a) an analytical model (approximation) which depends on use of rotational quantum numbers J and Ka for both the upper and lower levels; and (b) a method based on the estimate of the averaged energy differences between coupled states. The comparison of calculated data with broadening coefficients from HITRAN-2008 and available experimental data is presented. The resulting broadening coefficients can be used to calculate spectra of water vapor with hundreds millions of weak lines with reasonable accuracy. The line list VTT [Voronin, Tennyson, Tolchenov, MNRAS, 2010], supporting programs, files for calculations of spectra HD16O and estimation of broadening coefficient are made freely available also in electronic form via http://www.exomol.com.

AB - Air-broadening coefficients of the water isotopologue HD16O up to J = 50 for P, Q and R branches calculated using different methods are presented. For partially labeled lines ("good" quantum numbers: J, symmetry and level number) we combined three methods for calculating half-widths: J-dependence and JJ'-dependence up to J=15 and averaging coefficients calculated using a previously developed semi-empirical method for high J (15-50). For lines with full assignments based on normal modes v 1, v2, v3, Ka, Kc we used: (a) an analytical model (approximation) which depends on use of rotational quantum numbers J and Ka for both the upper and lower levels; and (b) a method based on the estimate of the averaged energy differences between coupled states. The comparison of calculated data with broadening coefficients from HITRAN-2008 and available experimental data is presented. The resulting broadening coefficients can be used to calculate spectra of water vapor with hundreds millions of weak lines with reasonable accuracy. The line list VTT [Voronin, Tennyson, Tolchenov, MNRAS, 2010], supporting programs, files for calculations of spectra HD16O and estimation of broadening coefficient are made freely available also in electronic form via http://www.exomol.com.

KW - Half-width

KW - HDO spectrum

KW - VTT line-list

UR - http://www.scopus.com/inward/record.url?scp=84875926421&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84875926421&partnerID=8YFLogxK

U2 - 10.1117/12.2008790

DO - 10.1117/12.2008790

M3 - Conference contribution

SN - 9780819494801

VL - 8696

BT - Eighteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics

ER -