氮氧化物羽烟在电离层局部的光热效应

在航天器羽烟一次性抛出和呈球状近似情况下，模拟了电离层E层NO羽烟与周围大气压力平衡时的最大亮度及其随时间的变化．在110km抛出的5molNO羽烟可使它获得瞬时夜间中等偏强极光那样的亮度，在140km抛出的同样数量的NO羽烟亮度却急剧地减弱．还模拟了白天夜间温度为1000K的NO2羽烟在190km和250km两个高度、50mol和500mol两种抛出总量所造成的局部大气温度短时间内的下降．在F层下部，夜间较大抛出量所造成的冷却效应是显著的．

OPTICAL-THERMAL EFFECT OF NO_x EXHAUST PLUME IN LOCAL IONOSPHERE

A spherical expansion approximation is used to simulate transient maximal radiance of NO gas cloud release and it is time-dependence under a pressure-balancing condition.It is found that if NO gas of 5mol was released at an altitude of 110km the cloud produces luminescent spherical trails as medium intensive aurora However, the cloud brightness descends hastily at 140km. The temperature's decline in the local atmosphere due to a NO2 gas release in F-region was also simulated.The simulation is completed for 190 and 250km altitudes, 50 and 500mol released amount for both day and night time. A distinct cooling effect is perceptible or bulk of NO2 release at lower F-region at night