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Pressure broadening, -shift, speed dependence and line mixing in the ν3 rovibrational band of N2O

Loos, Joep and Birk, Manfred and Wagner, Georg (2015) Pressure broadening, -shift, speed dependence and line mixing in the ν3 rovibrational band of N2O. Journal of Quantitative Spectroscopy and Radiative Transfer, 151, pp. 300-309. Elsevier. DOI: 10.1016/jqsrt.2014.10.008 ISSN 0022-4073

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Abstract

In this paper, we report measured air-broadening, -shift, speed dependence and Rosenkranz line mixing parameters for the ν3 fundamental rovibrational band of N2O. A Bruker IFS 125HR Fourier transform spectrometer was used with a White-type multipass absorption cell with 46.4 m absorption path length to measure four ambient temperature air-broadened absorption spectra at total pressures ranging from 100 to 1000 mbar. A multispectrum fitting technique was used to retrieve parameters up to |m|=40 (m=-J″ and m=J″+1 for the P and R branch, respectively) utilizing the partially correlated quadratic speed-dependent hard collision model including Rosenkranz line mixing. Speed dependence of the broadening parameter as well as line mixing could be observed in the spectra. The broadening parameters are compared to HITRAN2012, where deviations can be ascribed to the influence of neglecting speed dependence effects in spectra analyses when using the Voigt line profile. The line mixing coefficients show a smooth dependence on m.

Item URL in elib:https://elib.dlr.de/91832/
Document Type:Article
Title:Pressure broadening, -shift, speed dependence and line mixing in the ν3 rovibrational band of N2O
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Loos, Joepjoep.loos (at) dlr.deUNSPECIFIED
Birk, Manfredmanfred.birk (at) dlr.deUNSPECIFIED
Wagner, Georggeorg.wagner (at) dlr.deUNSPECIFIED
Date:2015
Journal or Publication Title:Journal of Quantitative Spectroscopy and Radiative Transfer
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:151
DOI :10.1016/jqsrt.2014.10.008
Page Range:pp. 300-309
Publisher:Elsevier
ISSN:0022-4073
Status:Published
Keywords:Nitrous oxide N2O Pressure broadening Pressure shift Speed dependence Line mixing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Spektrometrische Verfahren und Konzepte der Fernerkundung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Experimental Methods
Deposited By: Loos, Joep
Deposited On:11 Nov 2014 15:55
Last Modified:06 Sep 2019 15:28

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