Two different types of enhanced ion acoustic fluctuations observed in the upper ionosphere
Two different types of enhanced ion acoustic fluctuations observed in the upper ionosphere
复制标题
在电离层上部观察到的两种不同类型的增强离子声波动
DOI：
10.1029/94ja01093
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发表时间：
1995
影响因子：
--
通讯作者：
J. Wahlund
中科院分区：
文献类型：
--
作者：
F. Forme;D. Fontaine;J. Wahlund
介绍了斯堪的纳维亚半岛北部 EISCAT 非相干散射雷达设施的 UHF 和 VHF 数据。电子和离子温度、电子密度和离子漂移速度是在 280 至 1500 公里的高度测量的。由于波长效应，VHF 比 UHF 雷达更容易观察到增强的离子声波动。这种波动通常与大量能量为 100 ev 至 10 kev 的沉淀电子有关。确定湍流区域的空间范围。 23 参考文献，6 图。
UHF and VHF data for the EISCAT incoherent scatter radar facility in northern Scandinavia is presented. Electron and ion temperatures, electron density, and ion drift velocity were measured from heights of 280 to 1500 km. Enhanced ion acoustic fluctuations are more observable with VHF than UHF radar due to wavelength effects. The fluctuations are usually associated with a large flux of precipitating electrons with energies from 100 ev to 10 kev. The spatial extent of the turbulent regions are determined. 23 refs., 6 figs.