MSG-7: atmospheric penetration of solar radiation in the range of Schumann-Runge bands

Technical Report · Wed Dec 01 00:00:00 EST 1982

OSTI ID:5146234

Frederick, J E

There have been major efforts in measuring extraterrestrial solar irradiance for use in atmospheric studies. The quantity of immediate relevance to theoretical studies is the number of photons which reach a given altitude in the middle atmosphere. Current models compute the attenuated radiation field but the cross sections available for the major absorbers, O2 and O3, often come from experiments that are now quite old. Balloon measurements show some significant differences between the predicted and observed ultraviolet radiation field between 30 and 40 km. The wavelength region to be studied includes Lyman alpha plus the range 175 nm to the visible. Specific topics to be addressed are as follows: (1) the cross sections of the major absorbers, O2 and O3 including the Schumann-Runge bands as a subset (2) comparison of the in situ measurements of the attenuated radiation field with calculations and (3) the relevance of the scattered and reflected radiation fields for middle atmospheric processes.

• Research Organization: National Aeronautics and Space Administration, Greenbelt, MD (USA). Goddard Space Flight Center
• OSTI ID: 5146234
• Report Number(s): N-85-20443
• Resource Relation: Other Information: In International Council of Scientific Unions Middle Atmosphere Program, handbook for map, vol. 7, 94 p. (N--85-20437 11-42)
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
EARTH ATMOSPHERE
ATTENUATION
SOLAR RADIATION
BALLOONS
LYMAN LINES
MATHEMATICAL MODELS
OXYGEN
OZONE
PHOTONS
RAYLEIGH SCATTERING
SCHUMANN-RUNGE BANDS
ULTRAVIOLET RADIATION
AIRSHIPS
COHERENT SCATTERING
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
MASSLESS PARTICLES
NONMETALS
RADIATIONS
SCATTERING
STELLAR RADIATION
640201* - Atmospheric Physics- Auroral
Ionospheric
& Magetospheric Phenomena