scholarly journals Photodissociation of O2 via the Herzberg continuum: Measurements of O-atom alignment and orientation

2003 ◽  
Vol 118 (23) ◽  
pp. 10566-10574 ◽  
Author(s):  
Andrew J. Alexander ◽  
Zee Hwan Kim ◽  
Richard N. Zare
Keyword(s):  
Herzberg Continuum

Absorption cross section measurements of oxygen in the wavelength region 195–241 nm of the Herzberg continuum

1986 ◽  
Vol 34 (11) ◽  
pp. 1007-1021 ◽  
Author(s):  
A.S.-C. Cheung ◽  
K. Yoshino ◽  
W.H. Parkinson ◽  
S.L. Guberman ◽  
D.E. Freeman
Keyword(s):  
Cross Section ◽  
Absorption Cross Section ◽  
Wavelength Region ◽  
Absorption Cross ◽  
Herzberg Continuum

Oxygen absorption cross-section in the Herzberg continuum

1996 ◽  
Vol 56 (1) ◽  
pp. 145-152 ◽  
Author(s):  
Antonella Amoruso ◽  
Luca Crescentini ◽  
Maria Silvia Cola ◽  
Giorgio Fiocco
Keyword(s):  
Cross Section ◽  
Absorption Cross Section ◽  
Oxygen Absorption ◽  
Absorption Cross ◽  
Herzberg Continuum

scholarly journals Reconstruction of the solar spectral UV irradiance for nowcasting of the middle atmosphere state on the basis of LYRA measurements

2008 ◽  
Vol 8 (11) ◽  
pp. 2965-2973 ◽  
Author(s):  
T. Egorova ◽  
E. Rozanov ◽  
J.-F. Hochedez ◽  
W. Schmutz
Keyword(s):  
Solar Irradiance ◽  
Middle Atmosphere ◽  
Spectral Irradiance ◽  
Ion Chemistry ◽  
Statistical Tool ◽  
Full Spectrum ◽  
Lyman Alpha ◽  
Spectral Reconstruction ◽  
Uv Irradiance ◽  
Herzberg Continuum

Abstract. The LYRA instrument onboard ESA PROBA2 satellite will provide 6-hourly solar irradiance at the Lyman-alpha (121.6 nm) and the Herzberg continuum (~200–220 nm wavelength range). Because the nowcasting of the neutral and ionic state of the middle atmosphere requires the solar irradiance for the wide spectral range (120–680 nm) we have developed the statistical tool for the reconstruction of the full spectrum from the LYRA measurements. The accuracy of the reconstructed irradiance has been evaluated with 1-D transient radiative-convective model with neutral and ion chemistry using the daily solar spectral irradiance measured with SUSIM and SOLSTICE instruments onboard UARS satellite. We compared the results of transient 1-year long model simulations for 2000 driven by the observed and reconstructed solar irradiance and showed that the reconstruction of the full spectrum using linear regression equation based on the solar irradiance in two LYRA channels can be successfully used for nowcasting of the middle atmosphere. We have also identified conditions when the proposed approach does not yield spectral reconstruction with sufficient accuracy.

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