Abstract
A scheme is presented for the daytime ion chemistry of O//2** plus in the thermosphere and used to derive molecular oxygen abundances from ion composition measurements on board the Atmosphere Explorer-C satellite. The molecular oxygen abundance varies from about 1. 0 multiplied by 10**8 to 5. 0 multiplied by 10**8 cm** minus **3 at 200 km. No seasonal variation is found, but a significant increase in mean O//2 density occurs at high geomagnetic latitudes. A small variation of the O//2 density with local time is found.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 4678-4684 |
| Number of pages | 7 |
| Journal | J Geophys Res |
| Volume | 81 |
| Issue number | 25 |
| DOIs | |
| State | Published - 1976 |
All Science Journal Classification (ASJC) codes
- Geophysics
- Forestry
- Oceanography
- Aquatic Science
- Ecology
- Water Science and Technology
- Soil Science
- Geochemistry and Petrology
- Earth-Surface Processes
- Atmospheric Science
- Earth and Planetary Sciences (miscellaneous)
- Space and Planetary Science
- Palaeontology