Journal ArticleDOI
Temperature dependences for air-broadened Lorentz half-width and pressure shift coefficients in the 30013←00001 and 30012←00001 bands of CO2 near 1600 nm This article is part of a Special Issue on Spectroscopy at the University of New Brunswick in honour of Colan Linton and Ron Lees.
A. Predoi-CrossA. Predoi-Cross,A. R.W. McKellarA.R.W. McKellar,D. Chris Benner,V. Malathy Devi,R. R. GamacheR.R. Gamache,C. E. MillerC.E. Miller,R. A. TothR.A. Toth,L. R. BrownL.R. Brown +7 more
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In this article, 39 high-resolution spectra of pure and air-broadened CO2 recorded at temperatures between 215 and 294 K were analyzed using a multispectrum nonlinear least-squares technique.Abstract:
In this study, 39 high-resolution spectra of pure and air-broadened CO2 recorded at temperatures between 215 and 294 K were analyzed using a multispectrum nonlinear least-squares technique to deter...read more
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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
Frequency-comb-based remote sensing of greenhouse gases over kilometer air paths
Gregory B. Rieker,Fabrizio R. Giorgetta,William C. Swann,J. Kofler,Alexander M. Zolot,Laura C. Sinclair,Esther Baumann,Christopher L. Cromer,Gabrielle Pétron,Colm Sweeney,Pieter P. Tans,Ian Coddington,Nathan R. Newbury +12 more
TL;DR: In this paper, a coherent dual frequency-comb spectroscopy technique was used to estimate dry-air mole fractions of greenhouse gases, including CO2, CH4, H2O, HDO, and CO213.
Journal ArticleDOI
CDSD-296, high resolution carbon dioxide spectroscopic databank: Version for atmospheric applications
TL;DR: In this article, the authors present CDSD-296, a version of the Carbon Dioxide Spectroscopic Databank aimed at processing signals from the satellite-based sensors, which contains line parameters (positions, intensities as well as HITRAN air- and self-broadened halfwidths and coefficients of temperature dependence of air-widths) of the four most abundant isotopic species of CO2.
Journal ArticleDOI
Atmospheric validation of high accuracy CO2 absorption coefficients for the OCO-2 mission
David R. Thompson,D. Chris Benner,Linda R. Brown,David Crisp,V. Malathy Devi,Yibo Jiang,Vijay Natraj,Fabiano Oyafuso,Keeyoon Sung,Debra Wunch,Rebecca Castano,Charles E. Miller +11 more
TL;DR: In this article, the authors describe atmospheric validation of View the MathML source and view the view-the-MathML source CO_2 absorption coefficient databases for use by the Orbiting Carbon Observatory (OCO-2).
Journal ArticleDOI
The air-broadened, near-infrared CO2 line shape in the spectrally isolated regime: Evidence of simultaneous Dicke narrowing and speed dependence
David A. Long,K. Bielska,Daniel Lisak,Daniel K. Havey,Mitchio Okumura,Charles E. Miller,Joseph T. Hodges +6 more
TL;DR: Frequency-stabilized cavity ring-down spectroscopy was employed to measure air-broadened CO(2) line shape parameters for transitions near 1.6 μm over a pressure range of 6.7-33 kPa, and it was observed that only the speed-dependent Nelkin-Ghatak line profile was able to model the spectra to within the instrumental noise level.
References
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Journal ArticleDOI
The Orbiting Carbon Observatory (OCO) mission
David Crisp,Robert Atlas,François-Marie Bréon,Linda R. Brown,John P. Burrows,P. Ciais,Brian J. Connor,Scott C. Doney,Inez Fung,Daniel J. Jacob,Charles E. Miller,D. M. O'Brien,Steven Pawson,James T. Randerson,Peter Rayner,Ross J. Salawitch,Stanley P. Sander,Bhaswar Sen,Graeme L. Stephens,Pieter P. Tans,Geoffrey C. Toon,Paul O. Wennberg,Steven C. Wofsy,Yuk L. Yung,Zhiming Kuang,B. Chudasama,G. Sprague,B. Weiss,Randy Pollock,D. Kenyon,S. Schroll +30 more
TL;DR: The Orbiting Carbon Observatory (OCO) as mentioned in this paper is the first global, space-based measurements of atmospheric carbon dioxide (CO 2 ) with the precision, resolution and coverage needed to characterize CO 2 sources and sinks on regional scales.
Journal ArticleDOI
Short range force effects in semiclassical molecular line broadening calculations
D. Robert,J. Bonamy +1 more
TL;DR: In this article, a semiclassical theory of the width and shift of isolated infrared and Raman lines in the gas phase is developed within the impact approximation, and a parabolic trajectory model determined by the isotropic part of the interaction potential allows a satisfactory treatment to be made of the close collisions leading to an analytical expression for the elastic collision cross section.
Journal ArticleDOI
General impact theory of pressure broadening
TL;DR: In this paper, a theory of pressure broadening is developed which treats the perturbers quantum mechanically and allows for inelastic collisions, degeneracy, and overlapping lines, and the effective interaction is expressed in terms of the one-perturber quantum mechanical transition amplitudes on and near the energy shell.
Journal ArticleDOI
Energy levels, intensities, and linewidths of atmospheric carbon dioxide bands
Laurence S. Rothman,Laurence S. Rothman,R.L. Hawkins,R.L. Hawkins,R.B. Wattson,R.B. Wattson,Robert R. Gamache,Robert R. Gamache +7 more
TL;DR: In this article, the spectral constants for eight isotopic variants of carbon dioxide are given for transitions required for terrestrial atmospheric i.r. absorption and a new tabulation is also furnished with bands considered for the latest HITRAN molecular database.
Journal ArticleDOI
A multispectrum nonlinear least squares fitting technique
TL;DR: In this article, an extension of the nonlinear least squares spectrum fitting technique was developed for the simultaneous fitting of multiple spectra, which can improve the determination of spectroscopic parameters.
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