Gas phase chemical kinetics of sodium in the upper atmosphere

摘要: THE existence of a layer atomic sodium in the upper atmosphere near 90 km has been clearly demonstrated by analyses daytime and twilight airglow emissions D-line radiation at 5,890 5,896 A (refs 1 2) as well direct laser backscatter measurements (see, for example ref. 3). Following Chapman4 chemical reactions involving atmospheric oxygen species have invoked to explain dynamics nightglow emission radiation. In addition, Chapman also proposed that similar newly ablated are responsible occurrence long enduring visible meteor trails5. Unfortunately, previous quantitative attempts model sodium-induced chemiluminescence suffered from rather poor estimates appropriate reaction rate constants. Here we provide more reasonable constants show how these new kinetics parameters can dramatically alter calculations chemiluminescent efficiency.