MEASUREMENT OF N2-COLLISIONAL SHIFT COEFFICIENTS OF METHANE LINES IN THE ν3 BAND AT HIGH TEMPERATURES

Bastien Vispoel; Nicolas Hespel; Claude Populaire; Muriel Lepère

MEASUREMENT OF N₂-COLLISIONAL SHIFT COEFFICIENTS OF METHANE LINES IN THE ν₃ BAND AT HIGH TEMPERATURES

Bastien Vispoel, Nicolas Hespel, Claude Populaire, Muriel Lepère

Research output: Contribution to conference › Poster › peer-review

Abstract

The study of thespectral parameters, and their variations with temperature and pressure, ofmethane lines is important for the remote sensing of atmospheres [1].Methane is a minor component of the terrestrial atmosphere and his impact isimportant (methane is the third most abundant greenhouse gas [2]).Furthermore, methane is also present in the atmosphere of others planets [3-5]and stellar objects [6,7].

In this work,the collisional shift of absorption lines in the ν₃band of methanehas been measured for several high temperatures (up to 600 K). This studyhas been made with a two-beams tunable diode-laser spectrometer.

The collisionalline shift has been determined using a procedure described elsewhere [8].So far we know, there is not a general law for the temperature dependence ofthe collisional line shift commonly used in the literature [9]. Knowingthat, different laws have been tested to determine the temperature dependenceof the line shift. The observations will be discussed.

[1] J.-M. Flaud, H. Oelhaf, C. R. Physique 5, 259-271 (2004)

[2] D.J. Wuebbles, K. Hayhoe, Earth-Science Reviews 57, 177-210 (2002)

[3] E. Karkoschka, M.G. Tomasko, Icarus 211, 780-797 (2011)

[4] E. Karkoschka, M. Tomasko, Icarus 202, 287-309 (2009)

[5] I. de Pater, J.J. Lissauer, PlanetarySciences. Cambridge university press, Second Edition (2011)

[6] V. Boudon, J.-P. Champion, T. Gabard, M.Loëte, A. Coustenis, C. De Bergh, B. Bézard, E. Lellouche, P. Drossart, M.Hirtig, A. Negrão, and C.A. Griffith, Société Française de Physique – Sciencesde la Matière et Technologies, Société française de physique 11, 13-16 (2008)

[7] E.L. Gibb, M.J. Mumma, N. Dello Russo, M.A.DiSanti, K. Magee-Sauer, Icarus 165,391-406 (2003)

[8] B. Vispoel, M. Dhyne, J.-C. Populaire, G. Blanquet,M. Lepère, J. of Mol. Spectrosc. 298, 7-10 (2014)

[9] R.R. Gamache, J. Lamouroux, V. Blot-Lafon, E.Lopes, J. Quant. Spectrosc. and Radiat.Transfer 135, 30-43 (2014)

Original language	English
Publication status	Published - 2 Sept 2014
Event	The 23rd International Conference on High Resolution Molecular Spectroscopy - Bologne, Italy Duration: 2 Sept 2014 → 6 Sept 2014

Conference

Conference	The 23rd International Conference on High Resolution Molecular Spectroscopy
Country/Territory	Italy
City	Bologne
Period	2/09/14 → 6/09/14

Study by diode-laser spectroscopy of profiles and collisional parameters of infrared absorption lines of methane at low and high temperatures
Vispoel, B. & Lepere, M.
1/01/13 → 16/11/16
Project: PHD

Optics, Lasers and spectroscopy
Muriel Lepere (Manager)
Technological Platform Optics, Lasers and spectroscopy
Facility/equipment: Technological Platform

Cite this

@conference{5ba0057df58f496c80a54002ad81ea26,

title = "MEASUREMENT OF N2-COLLISIONAL SHIFT COEFFICIENTS OF METHANE LINES IN THE ν3 BAND AT HIGH TEMPERATURES",

abstract = "The study of thespectral parameters, and their variations with temperature and pressure, ofmethane lines is important for the remote sensing of atmospheres [1].Methane is a minor component of the terrestrial atmosphere and his impact isimportant (methane is the third most abundant greenhouse gas [2]).Furthermore, methane is also present in the atmosphere of others planets [3-5]and stellar objects [6,7]. In this work,the collisional shift of absorption lines in the ν3 band of methanehas been measured for several high temperatures (up to 600 K). This studyhas been made with a two-beams tunable diode-laser spectrometer. The collisionalline shift has been determined using a procedure described elsewhere [8].So far we know, there is not a general law for the temperature dependence ofthe collisional line shift commonly used in the literature [9]. Knowingthat, different laws have been tested to determine the temperature dependenceof the line shift. The observations will be discussed.[1] J.-M. Flaud, H. Oelhaf, C. R. Physique 5, 259-271 (2004)[2] D.J. Wuebbles, K. Hayhoe, Earth-Science Reviews 57, 177-210 (2002)[3] E. Karkoschka, M.G. Tomasko, Icarus 211, 780-797 (2011)[4] E. Karkoschka, M. Tomasko, Icarus 202, 287-309 (2009)[5] I. de Pater, J.J. Lissauer, PlanetarySciences. Cambridge university press, Second Edition (2011)[6] V. Boudon, J.-P. Champion, T. Gabard, M.Lo{\"e}te, A. Coustenis, C. De Bergh, B. B{\'e}zard, E. Lellouche, P. Drossart, M.Hirtig, A. Negr{\~a}o, and C.A. Griffith, Soci{\'e}t{\'e} Fran{\c c}aise de Physique – Sciencesde la Mati{\`e}re et Technologies, Soci{\'e}t{\'e} fran{\c c}aise de physique 11, 13-16 (2008)[7] E.L. Gibb, M.J. Mumma, N. Dello Russo, M.A.DiSanti, K. Magee-Sauer, Icarus 165,391-406 (2003)[8] B. Vispoel, M. Dhyne, J.-C. Populaire, G. Blanquet,M. Lep{\`e}re, J. of Mol. Spectrosc. 298, 7-10 (2014)[9] R.R. Gamache, J. Lamouroux, V. Blot-Lafon, E.Lopes, J. Quant. Spectrosc. and Radiat.Transfer 135, 30-43 (2014)",

author = "Bastien Vispoel and Nicolas Hespel and Claude Populaire and Muriel Lep{\`e}re",

year = "2014",

month = sep,

day = "2",

language = "English",

note = "The 23rd International Conference on High Resolution Molecular Spectroscopy ; Conference date: 02-09-2014 Through 06-09-2014",

}

TY - CONF

T1 - MEASUREMENT OF N2-COLLISIONAL SHIFT COEFFICIENTS OF METHANE LINES IN THE ν3 BAND AT HIGH TEMPERATURES

AU - Vispoel, Bastien

AU - Hespel, Nicolas

AU - Populaire, Claude

AU - Lepère, Muriel

PY - 2014/9/2

Y1 - 2014/9/2

N2 - The study of thespectral parameters, and their variations with temperature and pressure, ofmethane lines is important for the remote sensing of atmospheres [1].Methane is a minor component of the terrestrial atmosphere and his impact isimportant (methane is the third most abundant greenhouse gas [2]).Furthermore, methane is also present in the atmosphere of others planets [3-5]and stellar objects [6,7]. In this work,the collisional shift of absorption lines in the ν3 band of methanehas been measured for several high temperatures (up to 600 K). This studyhas been made with a two-beams tunable diode-laser spectrometer. The collisionalline shift has been determined using a procedure described elsewhere [8].So far we know, there is not a general law for the temperature dependence ofthe collisional line shift commonly used in the literature [9]. Knowingthat, different laws have been tested to determine the temperature dependenceof the line shift. The observations will be discussed.[1] J.-M. Flaud, H. Oelhaf, C. R. Physique 5, 259-271 (2004)[2] D.J. Wuebbles, K. Hayhoe, Earth-Science Reviews 57, 177-210 (2002)[3] E. Karkoschka, M.G. Tomasko, Icarus 211, 780-797 (2011)[4] E. Karkoschka, M. Tomasko, Icarus 202, 287-309 (2009)[5] I. de Pater, J.J. Lissauer, PlanetarySciences. Cambridge university press, Second Edition (2011)[6] V. Boudon, J.-P. Champion, T. Gabard, M.Loëte, A. Coustenis, C. De Bergh, B. Bézard, E. Lellouche, P. Drossart, M.Hirtig, A. Negrão, and C.A. Griffith, Société Française de Physique – Sciencesde la Matière et Technologies, Société française de physique 11, 13-16 (2008)[7] E.L. Gibb, M.J. Mumma, N. Dello Russo, M.A.DiSanti, K. Magee-Sauer, Icarus 165,391-406 (2003)[8] B. Vispoel, M. Dhyne, J.-C. Populaire, G. Blanquet,M. Lepère, J. of Mol. Spectrosc. 298, 7-10 (2014)[9] R.R. Gamache, J. Lamouroux, V. Blot-Lafon, E.Lopes, J. Quant. Spectrosc. and Radiat.Transfer 135, 30-43 (2014)

AB - The study of thespectral parameters, and their variations with temperature and pressure, ofmethane lines is important for the remote sensing of atmospheres [1].Methane is a minor component of the terrestrial atmosphere and his impact isimportant (methane is the third most abundant greenhouse gas [2]).Furthermore, methane is also present in the atmosphere of others planets [3-5]and stellar objects [6,7]. In this work,the collisional shift of absorption lines in the ν3 band of methanehas been measured for several high temperatures (up to 600 K). This studyhas been made with a two-beams tunable diode-laser spectrometer. The collisionalline shift has been determined using a procedure described elsewhere [8].So far we know, there is not a general law for the temperature dependence ofthe collisional line shift commonly used in the literature [9]. Knowingthat, different laws have been tested to determine the temperature dependenceof the line shift. The observations will be discussed.[1] J.-M. Flaud, H. Oelhaf, C. R. Physique 5, 259-271 (2004)[2] D.J. Wuebbles, K. Hayhoe, Earth-Science Reviews 57, 177-210 (2002)[3] E. Karkoschka, M.G. Tomasko, Icarus 211, 780-797 (2011)[4] E. Karkoschka, M. Tomasko, Icarus 202, 287-309 (2009)[5] I. de Pater, J.J. Lissauer, PlanetarySciences. Cambridge university press, Second Edition (2011)[6] V. Boudon, J.-P. Champion, T. Gabard, M.Loëte, A. Coustenis, C. De Bergh, B. Bézard, E. Lellouche, P. Drossart, M.Hirtig, A. Negrão, and C.A. Griffith, Société Française de Physique – Sciencesde la Matière et Technologies, Société française de physique 11, 13-16 (2008)[7] E.L. Gibb, M.J. Mumma, N. Dello Russo, M.A.DiSanti, K. Magee-Sauer, Icarus 165,391-406 (2003)[8] B. Vispoel, M. Dhyne, J.-C. Populaire, G. Blanquet,M. Lepère, J. of Mol. Spectrosc. 298, 7-10 (2014)[9] R.R. Gamache, J. Lamouroux, V. Blot-Lafon, E.Lopes, J. Quant. Spectrosc. and Radiat.Transfer 135, 30-43 (2014)

M3 - Poster

T2 - The 23rd International Conference on High Resolution Molecular Spectroscopy

Y2 - 2 September 2014 through 6 September 2014

ER -

MEASUREMENT OF N2-COLLISIONAL SHIFT COEFFICIENTS OF METHANE LINES IN THE ν3 BAND AT HIGH TEMPERATURES

Abstract

Conference

Fingerprint

Projects

Study by diode-laser spectroscopy of profiles and collisional parameters of infrared absorption lines of methane at low and high temperatures

Equipment

Optics, Lasers and spectroscopy

Cite this

MEASUREMENT OF N₂-COLLISIONAL SHIFT COEFFICIENTS OF METHANE LINES IN THE ν₃ BAND AT HIGH TEMPERATURES