重力波诱导OH气辉分布的变化

利用全隐欧拉格式和全球热层-电离层-中间层-电动力学环流耦合模式（TIME GCM） ，本文分析了非线性重力波在向上传播过程中对OH气辉廓线的影响，结果表明，当较小垂直 尺度重力波经过OH气辉发射层时，对其峰值分布有明显的影响,有时会出现双峰现象，说明 非线性重力波传播是引起气辉双峰分布的一个直接原因；重力波在中层顶区域的破碎 在OH气辉分布均有不同程度的表现，这不仅可以解释一些实际的观测，同时也对利用OH气辉 观测分析重力波传播特性有明显的指示意义. 

Fluctuation of the OH airglow pro file induced by gravity wave.

By using the FICE scheme and the thermosphere ionosphere mesosphere electrodynamics general circulation model, we analyze the effect of nonlinear propagating gravity wave on the OH airglow profile. The results shows that a shorter vertical wavelength gravity wave significantly influences the peak layer of the OH volume emission rate when gravity wave through the emission layer, sometimes it can induce the double peak structure in OH volume emission rate profile, which indicates that the nonlinear propagation of the gravity wave is a direct cause of the double peak structure of OH airglow. In addition , OH airglow altitude distribution is sensitive to the breaking of gravity wave at mesospause. These results can explain some observations, and can provide a good indication for studying the characteristic of nonlinear gravity wave by using OH airglow measurement.