Subdoppler Study of the ν7Band of C2H4with a CO2Laser Sideband Spectrometer

Rusinek, E.; Fichoux, H.; Khelkhal, M.; Herlemont, F.; Legrand, J.; Fayt, André

doi:10.1006/jmsp.1998.7539

Cited by 65 publications

(63 citation statements)

References 12 publications

(7 reference statements)

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“…A more careful analysis of the spectrum at 11 km in the upper troposphere reveals the signatures of other biomass burning related species in specific windows (Fig. 5), also summarized in Table 1 along with the principal interferences: -C 2 H 4 : It is observed in the region near 950 cm −1 , which is dominated by the ν 7 vibrational band, with additional contribution of the ν 4 and ν 10 bands (Rusinek et al, 1998). This region, which includes the ν 7 Q−branch at 945.45 cm −1 , partly overlapped by a strong CO 2 line, is similar to that also used to measure C 2 H 4 from the ground-based FTIR instruments ).…”

Section: Spectral Analysismentioning

confidence: 96%

ACE-FTS observation of a young biomass burning plume: first reported measurements of C2H4, C3H6O, H2CO and PAN by infrared occultation from space

et al. 2007

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Abstract. In the course of our study of the upper tropospheric composition with the infrared Atmospheric Chemistry Experiment -Fourier Transform Spectrometer (ACE-FTS), we found an occultation sequence that on 8 October 2005, sampled a remarkable plume near the east coast of Tanzania. Model simulations of the CO distribution in the Southern hemisphere are performed for this period and they suggest that the emissions for this event likely originated from a nearby forest fire, after which the plume was transported from the source region to the upper troposphere. Taking advantage of the very high signal-to-noise ratio of the ACE-FTS spectra over a wide wavenumber range (750-4400 cm −1 ), we present in-depth analyses of the chemical composition of this plume in the middle and upper troposphere, focusing on the measurements of weakly absorbing pollutants. For this specific biomass burning event, we report simultaneous observations of an unprecedented number of organic species. Measurements of C 2 H 4 (ethene), C 3 H 4 (propyne), H 2 CO (formaldehyde), C 3 H 6 O (acetone) and CH 3 COO 2 NO 2 (peroxyacetylnitrate, abbreviated as PAN) are the first reported detections using infrared occultation spectroscopy from satellites. Based on the lifetime of the emitted species, we discuss the photochemical age of the plume and also report, whenever possible, the enhancement ratios relative to CO.

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Section: Spectral Analysismentioning

confidence: 96%

ACE-FTS observation of a young biomass burning plume: first reported measurements of C2H4, C3H6O, H2CO and PAN by infrared occultation from space

et al. 2007

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“…The most extensive empirical model for the ethylene vibrational levels to date has been considered by Georges et al (1999) based on the information from previous high-resolution studies Sartakov et al 1997;Rusinek et al 1998;Bach et al 1999;Oomens et al 1996Oomens et al , 1994a. In the entire data set, spectral analyses remain quite sparse: of the 200 vibrational bands up to 4000 cm −1 , only 16 were completely or partially modeled.…”

Section: Current State Of Analyses Of Ethylene Experimental Laboratormentioning

confidence: 99%

First theoretical global line lists of ethylene (¹²C₂H₄) spectra for the temperature range 50−700 K in the far-infrared for quantification of absorption and emission in planetary atmospheres

Rey

Delahaye

Nikitin

et al. 2016

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We present the construction of complete and comprehensive ethylene line lists for the temperatures 50−700 K based on accurate ab initio potential and dipole moment surfaces and extensive first-principle calculations. Three lists spanning the [0−6400] cm −1 infrared region were built at T = 80, 160, and 296 K, and two lists in the range [0−5200] cm −1 were built at 500 and 700 K. For each of these five temperatures, we considered possible convergence problems to ensure reliable opacity calculations. Our final list at 700 K was computed up to J = 71 and contains almost 60 million lines for intensities I > 5 × 10 −27 cm/molecule. Comparisons with experimental spectra carried out in this study showed that for the most active infrared bands, the accuracy of band centers in our theoretical lists is better on average than 0.3 cm −1 , and the integrated absorbance errors in the intervals relevant for spectral analyses are about 1−3%. These lists can be applied to simulations of absorption and emission spectra, radiative and non-LTE processes, and opacity calculations for planetary and astrophysical applications.

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“…Furthermore, numerous higher resolution infrared measurements and analyses (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21) of the fundamental, overtone, and combination bands of these molecules were conducted to study the rovibrational structure and to derive accurate rotational and higher order constants. Most of the latest high-resolution FTIR studies were centered on 12 C 2 H 4 (7,17), 12 C 2 D 4 (8,9,(14)(15)(16), trans-12 C 2 H 2 D 2 (10,19), cis-12 C 2 H 2 D 2 (11,18), and 1,1-ethylene-d 2 (20,21).…”

Section: Introductionmentioning

confidence: 99%

Analysis of the ν12 Band of Ethylene-13C2 by High-Resolution FTIR Spectroscopy

Tan

Goh

Ong

et al. 2001

Journal of Molecular Spectroscopy

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Subdoppler Study of the ν7Band of C2H4with a CO2Laser Sideband Spectrometer

Cited by 65 publications

References 12 publications

ACE-FTS observation of a young biomass burning plume: first reported measurements of C<sub>2</sub>H<sub>4</sub>, C<sub>3</sub>H<sub>6</sub>O, H<sub>2</sub>CO and PAN by infrared occultation from space

ACE-FTS observation of a young biomass burning plume: first reported measurements of C<sub>2</sub>H<sub>4</sub>, C<sub>3</sub>H<sub>6</sub>O, H<sub>2</sub>CO and PAN by infrared occultation from space

First theoretical global line lists of ethylene (¹²C₂H₄) spectra for the temperature range 50−700 K in the far-infrared for quantification of absorption and emission in planetary atmospheres

Analysis of the ν12 Band of Ethylene-13C2 by High-Resolution FTIR Spectroscopy

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Subdoppler Study of the ν7Band of C2H4with a CO2Laser Sideband Spectrometer

Cited by 65 publications

References 12 publications

ACE-FTS observation of a young biomass burning plume: first reported measurements of C&lt;sub&gt;2&lt;/sub&gt;H&lt;sub&gt;4&lt;/sub&gt;, C&lt;sub&gt;3&lt;/sub&gt;H&lt;sub&gt;6&lt;/sub&gt;O, H&lt;sub&gt;2&lt;/sub&gt;CO and PAN by infrared occultation from space

ACE-FTS observation of a young biomass burning plume: first reported measurements of C&lt;sub&gt;2&lt;/sub&gt;H&lt;sub&gt;4&lt;/sub&gt;, C&lt;sub&gt;3&lt;/sub&gt;H&lt;sub&gt;6&lt;/sub&gt;O, H&lt;sub&gt;2&lt;/sub&gt;CO and PAN by infrared occultation from space

First theoretical global line lists of ethylene (12C2H4) spectra for the temperature range 50−700 K in the far-infrared for quantification of absorption and emission in planetary atmospheres

Analysis of the ν12 Band of Ethylene-13C2 by High-Resolution FTIR Spectroscopy

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ACE-FTS observation of a young biomass burning plume: first reported measurements of C<sub>2</sub>H<sub>4</sub>, C<sub>3</sub>H<sub>6</sub>O, H<sub>2</sub>CO and PAN by infrared occultation from space

ACE-FTS observation of a young biomass burning plume: first reported measurements of C<sub>2</sub>H<sub>4</sub>, C<sub>3</sub>H<sub>6</sub>O, H<sub>2</sub>CO and PAN by infrared occultation from space

First theoretical global line lists of ethylene (¹²C₂H₄) spectra for the temperature range 50−700 K in the far-infrared for quantification of absorption and emission in planetary atmospheres