Midlatitude trough in the night ionosphere
Midlatitude trough in the night ionosphere
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DOI：
10.1029/jz071i005p01345
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发表时间：
1966-03
影响因子：
--
通讯作者：
G. W. Sharp
中科院分区：
文献类型：
--
作者：
G. W. Sharp
1963年11月至11月，在一颗极轨道定向卫星上的离子阱飞行揭示了F区电离中存在一个定义明确的低谷，该低谷持续了近四天半，在此期间获得了数据。槽的地磁取向是沿着飞行器轨道和L = 3.5壳层的交叉点，位于极地极光带的赤道一侧，它在北方和南半球都有发现。而尖锐的梯度离子浓度被认为是与此槽，特别是在极侧的槽。槽的形状并不是固定不变的，而是在整个飞行过程中发生了相当大的变化，其宽度似乎与极地极光带中沉淀的电子强度成反比。
The October–November 1963 flight of an ion trap on a polar-orbiting oriented satellite has revealed the presence of a well defined trough in the F-region ionization that persists over the nearly four and one-half days during which data were obtained. The trough is geomagnetically oriented along the intersection of the vehicle orbit and the L = 3.5 shell, located on the equator side of the polar auroral zone, and it is found in both the northern and southern hemispheres. Rather sharp gradients in the ion concentration are found to be associated with this trough, particularly on the polar side of the trough. The trough shape does not remain fixed, but changes rather dramatically throughout this flight, and its width seems to be inversely correlated with the intensity of electrons precipitated in the polar auroral zones.