Journal ArticleDOI
Visible absorption cross sections and integrated absorption intensities of molecular oxygen (O2 and O4)
David A. Newnham,John Ballard +1 more
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In this paper, the absorption spectra of gas-phase molecular oxygen and zero air at temperatures of 223 and 283 K were measured using a coolable multipass-optics gas cell and Fourier transform spectroscopy in the wavelength range 455 to 830 nm (12,000-22,000 cm -1 ).Abstract:
Absorption spectra of gas-phase molecular oxygen and zero air at temperatures of 223 and 283 K have been measured in the laboratory using a coolable multipass-optics gas cell and Fourier transform spectroscopy in the wavelength range 455 to 830 nm (12,000-22,000 cm -1 ). Net absorption cross sections of the O 2 A-, B-, and γ-bands at <0.002 nm spectral resolution, and pressures of 100 and 1000 hPa zero air have been determined. Binary absorption cross sections of the collision-induced O 4 bands at <0.18 nm spectral resolution and a pressure of 1000 hPa pure oxygen have been determined, with corrections for the O 2 γ-band absorption. Calculated integrated absorption intensities and, for the O 2 A- and B-bands, effective Einstein A-coefficients are compared with previous literature values.read more
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An improved high-resolution solar reference spectrum for earth's atmosphere measurements in the ultraviolet, visible, and near infrared
Kelly Chance,Robert L. Kurucz +1 more
TL;DR: In this paper, an improved solar reference spectrum for atmospheric spectra from vacuum wavelengths of 200.07 through 1000.99 nm was developed by combining high spectral resolution ground-based and balloon-based solar measurements with lower spectral resolution but higher accuracy irradiance information.
Journal ArticleDOI
The 2009 edition of the GEISA spectroscopic database
N. Jacquinet-Husson,L. Crepeau,R. Armante,C. Boutammine,A. Chedin,N. A. Scott,C. Crevoisier,V. Capelle,C. Boone,N. Poulet-Crovisier,A. Barbe,Alain Campargue,D. Chris Benner,Yves Bénilan,Bruno Bézard,Vincent Boudon,Linda R. Brown,L. H. Coudert,Athena Coustenis,V. Dana,V. M. Devi,Sophie Fally,André Fayt,Jean-Marie Flaud,Aaron Goldman,Michel Herman,G. J. Harris,D. Jacquemart,Antoine Jolly,Isabelle Kleiner,Armin Kleinböhl,F. Kwabia-Tchana,Nina N. Lavrentieva,Nelly Lacome,Li-Hong Xu,O.M. Lyulin,J.-Y. Mandin,Arthur G. Maki,Semen Mikhailenko,Charles E. Miller,T.P. Mishina,Nasser Moazzen-Ahmadi,Holger S. P. Müller,Andrei Nikitin,Johannes Orphal,V.I. Perevalov,Agnes Perrin,Douglas T. Petkie,Adriana Predoi-Cross,Curtis P. Rinsland,John Remedios,Maud Rotger,Mary Ann H. Smith,Keeyoon Sung,S.A. Tashkun,Jonathan Tennyson,Robert A. Toth,Ann Carine Vandaele,J. Vander Auwera +58 more
TL;DR: The GEISA database as mentioned in this paper is a computer-accessible system comprising three independent sub-databases devoted, respectively, to: line parameters, infrared and ultraviolet/visible absorption cross-sections, microphysical and optical properties of atmospheric aerosols.
Journal ArticleDOI
Direct measurement of the Rayleigh scattering cross section in various gases
Maarten Sneep,Wim Ubachs +1 more
TL;DR: In this paper, cavity ring-down spectroscopy extinction measurements have been performed in various gases straightforwardly resulting in cross sections for Rayleigh scattering, for Ar and N 2 measurements are performed in the range 470-490nm, while for CO 2 cross sections are determined in the wider range 470−570nm.
Journal ArticleDOI
Incoherent broad-band cavity-enhanced absorption spectroscopy
TL;DR: In this article, a new highly sensitive method for incoherent broad-band cavity-enhanced absorption measurements of gaseous samples, using a white-light source is demonstrated.
Journal ArticleDOI
Temperature dependent absorption cross-sections of O2–O2 collision pairs between 340 and 630 nm and at atmospherically relevant pressure
Ryan Thalman,Rainer Volkamer +1 more
TL;DR: The atmospheric O4 distribution is for all practical means and purposes independent of temperature, and can be predicted with an accuracy of better than 10(-3) from knowledge of the oxygen concentration profile.
References
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Smoothing and Differentiation of Data by Simplified Least Squares Procedures.
Book
Numerical Recipes in FORTRAN
TL;DR: The Diskette v 2.04, 3.5'' (720k) for IBM PC, PS/2 and compatibles [DOS] Reference Record created on 2004-09-07, modified on 2016-08-08.
Journal ArticleDOI
The hitran molecular database: editions of 1991 and 1992
Laurence S. Rothman,Robert R. Gamache,R. H. Tipping,Curtis P. Rinsland,Mary Ann H. Smith,D. Chris Benner,V. Malathy Devi,J. M. Flaud,Claude Camy-Peyret,Agnes Perrin,A. Goldman,Steven T. Massie,Linda R. Brown,Robert A. Toth +13 more
TL;DR: The HITRAN molecular absorption database as mentioned in this paper contains line parameters for 31 species and their isotopomers that are significant for terrestrial atmospheric studies, including chlorofluorocarbons and other molecular species that are not amenable to line-by-line representation.
Journal ArticleDOI
Studies with a flexible new radiation code. I: Choosing a configuration for a large-scale model
J. M. Edwards,A. Slingo +1 more
TL;DR: In this article, a new radiation code based on the two-stream equations in both the long-wave and short-wave spectral regions is described, which is well suited to the investigation of the sensitivity of radiative calculations to changes in the way in which physical processes are parametrized.
Journal ArticleDOI
Absorption measurements of oxygen between 330 and 1140 nm
TL;DR: The absorption spectrum of O2 and O2-O2 collision pairs were measured over the wavelength range from 330 to 1140 nm using pressures of O 2 from 1 to 55 atm at 298 K as mentioned in this paper.
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