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New infrared spectroscopic database for bromine nitrate

Wagner, Georg and Birk, Manfred (2016) New infrared spectroscopic database for bromine nitrate. Journal of Molecular Spectroscopy, 326, pp. 95-105. Elsevier. DOI: 10.1016/j.jms.2016.03.007 ISSN 0022-2852

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Official URL: http://www.sciencedirect.com/science/article/pii/S0022285216300352


Fourier transform infrared measurements of bromine nitrate have been performed in the spectral region 675–1400 cm−1 at 0.014 cm−1 spectral resolution. Absorption cross sections were derived from 38 spectra covering the temperature range from 203 to 296 K and air pressure range from 0 to 190 mbar. For line-by-line analysis, further spectra were recorded at 0.00094 cm−1 spectral resolution at 223 and 293 K. The sample was synthesized from ClONO2 and Br2. Band strengths of the bands nu3 around 803 cm-1 and nu2 around 1286 cm-1 were determined from three pure BrONO2 measurements at different temperatures and pressures. Number densities in the absorption cell were derived from pressure measurements of the purified sample taking into account small amounts of impurities determined spectroscopically. Resulting band strengths are Snu3 = 2.872(52)×10-17 cm2molec-1cm-1 and Snu2 = 3.63(15)×10-17 cm2molec-1cm-1. Absorption cross sections of all measurements were scaled to these band strengths. Further data reduction was achieved with an interpolation scheme based on two-dimensional polynomials in ln(pressure) and temperature. The database is well-suited for remote-sensing application and should reduce the atmospheric bromine nitrate error budget substantially.

Item URL in elib:https://elib.dlr.de/101475/
Document Type:Article
Title:New infrared spectroscopic database for bromine nitrate
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wagner, Georggeorg.wagner (at) dlr.deUNSPECIFIED
Birk, Manfredmanfred.birk (at) dlr.deUNSPECIFIED
Journal or Publication Title:Journal of Molecular Spectroscopy
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.jms.2016.03.007
Page Range:pp. 95-105
Series Name:New Visions of Spectroscopic Databases, Volume I
Keywords:bromine nitrate; infrared absorption cross sections; spectroscopic database; temperature dependence; air pressure dependence; Fourier transform spectroscopy
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: Birk, Manfred
Deposited On:21 Dec 2015 19:01
Last Modified:31 Jul 2019 19:59

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