Experimental line list of water vapor absorption lines in the spectral ranges 1850 - 2280 cm and 2390 - 4000 cm

Loos, Joep

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https://hdl.handle.net/2142/97186 Copy

Description

Title

Experimental line list of water vapor absorption lines in the spectral ranges 1850 - 2280 cm and 2390 - 4000 cm

Author(s)

Loos, Joep

Contributor(s)

• Wagner, Georg
• Birk, Manfred

Issue Date

2017-06-20

Keyword(s)

Linelists

Abstract

A new experimental line parameter list of water vapor absorption lines in the spectral ranges 1850,--,2280,cmtextsuperscript{--1} and 2390,--,4000,cmtextsuperscript{--1} is presented. The line list is based on the analysis of several transmittance spectra measured using a Bruker IFS 125 HR high resolution Fourier transform spectrometer. A total of 54 measurements of pure water and water/air-mixtures at 296 K as well as water/air-mixtures at high and low temperatures were performed. A multispectrum fitting approach was used applying a quadratic speed-dependent hard collision line shape model in the Hartmann-Tran implementationfootnote{N.H. Ngo textit{et al}. JQSRT textbf{129}, 89-100 (2013) doi:10.1016/j.jqsrt.2013.05.034; JQSRT textbf{134}, 105 (2014) doi:10.1016/j.jqsrt.2013.10.016.}footnote{H. Tran textit{et al}. JQSRT textbf{129}, 199-203 (2013) doi:10.1016/j.jqsrt.2013.06.015; JQSRT textbf{134}, 104 (2014) doi:10.1016/j.jqsrt.2013.10.015.} extended to account for line mixing in the Rosenkranz approximation in order to retrieve line positions, intensities, self- and air-broadening parameters, their speed-dependence, self- and air-shifts as well as line mixing and in some cases collisional narrowing parameters. Additionally, temperature dependence parameters for widths, shifts and in a few cases line mixing were retrieved. For every parameter an extensive error estimation calculation was performed identifying and specifying systematic error sources. The resulting parameters are compared to the databases HITRAN12footnote{L.S. Rothman textit{et al}. JQSRT textbf{130}, 4--50 (2013) doi:10.1016/j.jqsrt.2013.07.002.} and GEISA15footnote{N. Jacquinet-Husson textit{et al}. JMS textbf{112}, 2395--2445 (2016) doi:10.1016/j.jms.2016.06.007.} as well as experimental values. For intensities, a detailed comparison to results of recent ab initio calculations performed at University College London was done showing an agreement within 2,% for a majority of the data. However, for some bands there are systematic deviations attributed to ab initio calculation errors._x000d_ _x000d_

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/97186

DOI

https://doi.org/10.15278/isms.2017.TJ04

Copyright and License Information

Copyright 2017 Joep Loos

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