First direct ground-based measurements of electron drift in the ionospheric F region
First direct ground-based measurements of electron drift in the ionospheric F region
复制标题
首次直接地面测量电离层 F 区电子漂移
DOI：
--
复制
发表时间：
1986
期刊：
影响因子：
--
通讯作者：
S. Ganguly
中科院分区：
文献类型：
--
作者：
R. Behnke;S. Ganguly
利用非相干散射谱中电子分量的多普勒频移，首次直接测定了电离层F区的垂直电子漂移速度。同时对离子漂移速度进行了测量。在日出时观察到电子和离子的速度相差100 ms−1量级，对应的电流为10−5 Am−2。这些电流最有可能的来源似乎是当地热层风对与日出线有关的大电导率梯度的作用。
For the first time, vertical electron drift velocities in the F region of the ionosphere have been directly determined using the Doppler shift of the electron component of the incoherent-scatter spectra. Simultaneous measurements of ion drift velocities were also made. A large difference between the electron and ion velocities of the order of 100 ms−1 with corresponding currents of 10−5 Am−2 was observed at sunrise. The most likely source of these currents appears to be the action of the local thermospheric wind on the large conductivity gradients associated with the sunrise line.