The Raman-scattering spectrum of the earth's atmosphere at twilight
Abstract
The twilight spectra studied in the present paper reveal, at small solar zenith angles, a number of very bright diffuse bands above the monotonic twilight continuum, in addition to the usual emissions of Na (0.589 and 0.5896 micron) and O I (0.63 and 0.6364 micron). The bands near 0.619 and 0.614 micron are particularly intense. It is argued that the diffuse bands may be anti-Stokes bands of Raman scattering by water vapor of the intense molecular oxygen emission at 1.269 micron in the upper atmosphere.
- Publication:
-
Akademiia Nauk SSSR Doklady
- Pub Date:
- October 1978
- Bibcode:
- 1978DoSSR.242.1068K
- Keywords:
-
- Atmospheric Attenuation;
- Infrared Photography;
- Molecular Spectra;
- Oxygen Spectra;
- Raman Spectra;
- Twilight Glow;
- Fraunhofer Lines;
- Upper Atmosphere;
- Water Vapor;
- Geophysics