On the chemistry of metastable atomic nitrogen in theFregion deduced from Simultaneous satellite measurements of the 5200-Å airglow and atmospheric composition
| Autor: | J. E. Frederick, David W. Rusch |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
Atmospheric Science
Ecology Airglow Paleontology Soil Science chemistry.chemical_element Forestry Electron Aquatic Science Oceanography Nitrogen F region Atmosphere Geophysics chemistry Space and Planetary Science Geochemistry and Petrology Atmospheric chemistry Metastability Earth and Planetary Sciences (miscellaneous) Thermosphere Atomic physics Earth-Surface Processes Water Science and Technology |
| Zdroj: | Journal of Geophysical Research. 82:3509-3517 |
| ISSN: | 0148-0227 |
| DOI: | 10.1029/ja082i025p03509 |
| Popis: | The 5200-A N I (4S-²D) emission monitored by the visible airglow experiments on Atmosphere Explorer C and D combined with simultaneous measurements of atmospheric composition yields the following results. The metastable ²D term of atomic nitrogen must be produced in the F region at near the maximum rate allowed by currently accepted chemistry. The rate coefficient deduced for the loss of N(²D) by reaction with O2 is in good agreement with the laboratory result. The quenching rate of N(²D) by electrons lies in the range 3.6–6.5 × 10−10 (Te/300)1/2 cm³ s−1 if the laboratory rate for N2+ recombination is applicable to the thermosphere. The value may be somewhat larger than this if nonthermal effects are important. The quenching rate by atomic oxygen is near 4 × 10−13 cm³ s−1, much smaller than the laboratory value. |
| Databáze: | OpenAIRE |
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