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Measurement of positions, intensities and self-broadening line shape parameters of H2O lines in the spectral ranges 1850-2280 cm-1 and 2390-4000 cm-1

Loos, Joep and Birk, Manfred and Wagner, Georg (2017) Measurement of positions, intensities and self-broadening line shape parameters of H2O lines in the spectral ranges 1850-2280 cm-1 and 2390-4000 cm-1. Journal of Quantitative Spectroscopy & Radiative Transfer, 203, pp. 119-132. Elsevier. DOI: 10.1016/j.jqsrt.2017.02.013 ISSN 0022-4073

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Official URL: http://www.sciencedirect.com/science/article/pii/S0022407317300419

Abstract

A Bruker IFS 125 HR Fourier transform spectrometer was used to measure several pure water transmittance spectra in the spectral range 1850-4000cm-1. A total of 15 measurements with Absorption path lengths between 24.9 cm and 174.6 m and sample gas pressures from 0.1 to 20 mbar were performed at 296 K. The transmittance spectra were corrected for various error sources and were analyzed in the spectral ranges 1850-2280 cm-1 and 2390-4000 cm-1 for the majority of intensities between 3x10-26 and 3x10-19 cm molecule-1. A multispectrum fitting Approach was used applying a quadratic speed-dependent Voigt model Extended to account for line mixing in the Rosenkranz first order perturbation approximation. Line positions, intensities,self-broadening widths, their speed-dependence and in some cases line mixing had to be adjusted for fitting the measurements to noise level. An extensive error estimation calculation was performed propagating several instrumental and measurement errors into individual parameter inaccuracies. The determined Parameters are compared to HITRAN12 and Independent experimental values while intensities are compared to recent ab initio calculations performed at UCL. The Overall agreement between ab initio calculations and experimental values is remarkable and below 1% in most cases. The determined line Parameters are provided as a Supplement to this publication.

Item URL in elib:https://elib.dlr.de/111454/
Document Type:Article
Title:Measurement of positions, intensities and self-broadening line shape parameters of H2O lines in the spectral ranges 1850-2280 cm-1 and 2390-4000 cm-1
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Loos, JoepJoep.Loos (at) dlr.dehttps://orcid.org/0000-0002-5899-4330
Birk, ManfredManfred.Birk (at) dlr.deUNSPECIFIED
Wagner, GeorgGeorg.Wagner (at) dlr.deUNSPECIFIED
Date:2017
Journal or Publication Title:Journal of Quantitative Spectroscopy & Radiative Transfer
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:203
DOI :10.1016/j.jqsrt.2017.02.013
Page Range:pp. 119-132
Editors:
EditorsEmail
Bernath, PeterOld Dominion University, Norfolk, Virginia, USA
Mengüç, M. PinarÖzyeğin University, Istanbul, Turkey
Mishchenko, Michael I.NASA-Goddard Institute for Space Studies, New York, New York, USA
Publisher:Elsevier
ISSN:0022-4073
Status:Published
Keywords:Water vapor, Infrared line Parameters, Line positions, Intensities, Self-broadening line shape parameters
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:13 Mar 2017 11:16
Last Modified:31 Jul 2019 20:08

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