NDLI: The global characteristics of atmosphere emissions in the lower thermosphere and their aeronomic implications. [ogo-4 airglow photometric observations of oxygen

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The global characteristics of atmosphere emissions in the lower thermosphere and their aeronomic implications. [ogo-4 airglow photometric observations of oxygen

Content Provider	NASA Technical Reports Server (NTRS)
Author	Chandra, S. Reed, E. I.
Copyright Year	1974
Description	The green line of atomic oxygen and the Herzberg bands of molecular oxygen as observed from the OGO-4 airglow photometer are discussed in terms of their spatial and temporal distributions and their relation to the atomic oxygen content in the lower thermosphere. Daily maps of the distribution of emissions show considerable structure (cells, patches, and bands) with appreciable daily changes. When data are averaged over periods of several days in length, the resulting patterns have occasional tendencies to follow geomagnetic parallels. The Seasonal variations are characterized by maxima in both the Northern and Southern Hemispheres in October, with the Northern Hemisphere having substantially higher emission rates. Formulae are derived relating the vertical column emission rates of the green line and the Herzberg bands to the atomic oxygen peak density. Global averages for the time period for these data (August 1967 to January 1968), when converted to maximum atomic oxygen densities near 95 km, have a range of 2.0 x 10 to the 11th power/cu cm 2.7 x 10 to the 11th power/cu cm.
File Size	1164293
Page Count	37
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19740024671
Archival Resource Key	ark:/13960/t8ff8jj29
Language	English
Publisher Date	1974-08-01
Access Restriction	Open
Subject Keyword	Geophysics Geomagnetism Oxygen Thermosphere Oxygen Atoms Annual Variations Herzberg Bands Ogo-4 Photometers Atmospheric Density Oxygen Spectra Airglow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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