Accession Number : ADA019817

Title :   An Atlas of the Solar Ultraviolet Spectrum Between 2226 and 2992 Angstroms,


Personal Author(s) : Tousey,R. ; Milone,E. F. ; Purcell,J. D. ; Schneider,W. Palm ; Tilford,S. G.

Report Date : OCT 1974

Pagination or Media Count : 87

Abstract : The photochemistry of the earth's upper atmosphere is controlled fundamentally by the incident radiation from the sun, especially the ultraviolet that is absorbed at levels above the tropopause. This atlas presents the incident solar irradiance with the high spectral resolution necessary to calculate the reaction produced when this energy is absorbed by atmospheric molecular gases. Many of these molecules have absorption bands that consist of very narrow lines. Solar irradiance in units of (mu)w/sq cm/A are presented in the wavelength range of 2226 to 2992 A. The curves were determined from high-resolution rocket echelle spectrograms photographed above the earth's atmosphere. Each panel of the atlas covers 14A, with some overlap from panel to panel. The spectral resolution is approximately 0.03A.

Descriptors :   *Upper atmosphere, *Aeronomy, *Ultraviolet spectra, Solar ultraviolet radiation, Photochemical reactions, Absorption spectra, Diffraction gratings, Rocketborne

Subject Categories : Astrophysics
      Atmospheric Physics
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE