Airglow response to vertically standing gravity waves
Airglow response to vertically standing gravity waves
复制标题
气辉对垂直重力波的响应
DOI：
10.1029/94gl01137
复制
发表时间：
1994
影响因子：
5.2
通讯作者：
D. Tarasick
中科院分区：
文献类型：
--
作者：
Colin O. Hines;D. Tarasick
目前，人们对大气重力波引起的气辉辐射波动很感兴趣。亮度的波动往往与测量温度的波动同相（或偶尔反相），而目前的理论倾向于预测大量的相位差。我们在这里提出，这种差异是由于常见的理论假设失败造成的，即相关的重力波由一个单一的上行分量主导：相反，有一个伴随的下行分量，其大小相当，由反射产生。在全反射、简单、稳态化学和垂直观察的情况下，相位差必然为零（或180°）。
There is currently much interest in fluctuations of airglow emissions caused by atmospheric gravity waves. The fluctuations of brightness tend to be found in phase (or occasionally in antiphase) with the fluctuations of measured temperature, whereas current theory tends to anticipate substantial phase differences. We suggest here that the discrepancy results from failure of the common theoretical assumption that the relevant gravity waves are dominated by a single upgoing component: that, instead, there is an accompanying downgoing component of comparable magnitude, produced by reflection. In the case of total reflection, simple, steady state chemistry and vertical viewing, the phase difference is necessarily zero (or 180°).