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High-resolution vib-rotational analysis of the nu3 and nu4

Flaud, Jean Marie and Orphal, Johannes and Lafferty, Walter and Birk, Manfred and Wagner, Georg (2002) High-resolution vib-rotational analysis of the nu3 and nu4. Journal of Geophysical Research, 107, 4782,doi:10.1029/2002JD002628-.

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High-resolution Fourier-transform spectra of isotopically natural pure chlorine nitrate, ClONO2, were recorded with a resolution of 0.00094 cm-1 at temperatures of 190 and 297 K. An extensive vib-rotational analysis of the n4 and n3 fundamental bands as well as the hot band, nu4 + nu9 - nu9, of the most abundant 35Cl isotopomer was performed for the 190 K spectrum. In addition, the cold bands of the lesser abundant 37Cl isotopomer were partially assigned. Accurate upper state rotational Hamiltonian constants were derived. In particular, the following band centers were determined: nu0(nu4) = 780.2161(8) cm-1, nu0(nu3) = 809.7513(8) cm-1, nu0(nu4 + nu9 – nu9) = 778.7235(8) cm-1 for 35ClONO2 and nu0(nu4) = 778.8695(8) cm-1 for 37ClONO2. These constants were used to generate spectral parameters that permit a precise modeling of experimental cross sections of the nu4 fundamental Q-branch of 35ClONO2 over the temperature range of 190–297 K and atmospheric pressures up to 150 mbar. This Q-branch is used for atmospheric retrievals.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2003,
Title:High-resolution vib-rotational analysis of the nu3 and nu4
AuthorsInstitution or Email of Authors
Flaud, Jean MarieLISA
Orphal, JohannesLISA
Lafferty, WalterNIST
Journal or Publication Title:Journal of Geophysical Research
Refereed publication:Yes
In ISI Web of Science:Yes
Page Range:4782,doi:10.1029/2002JD002628-
Keywords:chlorine nitrate, infrared spectroscopy, line by line calculations, atmospheric retrievals
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Deposited By: Cornelia Roehl
Deposited On:16 Jan 2006
Last Modified:06 Jan 2010 22:15

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