在夜侧极电离层电离舌前部的GPS闪烁和不规则性
GPS scintillation and irregularities at the front of an ionization tongue in the nightside polar ionosphere
摘要：
在本文中，我们研究了电离舌（TOI）在2011年10月31日，横跨极冠从加拿大阳面部门斯瓦尔巴群岛在阴面电离层。TOI前线在1930 UT左右到达斯瓦尔巴特群岛。我们已经调查了GPS闪烁和不规则性，在这个TOI前。这是第一次研究提出了这样详细的多仪器数据的闪烁和不规则性的TOI前。结合来自全天空成像仪，欧洲非相干散射斯瓦尔巴德雷达，超级双极光雷达网络Hankasalmi雷达，以及三个GPS闪烁和总电子含量（TEC）监测器在朗伊尔城和纽约州，我们观察到突发的相位闪烁和没有振幅闪烁的领先梯度的TOI。50 Hz相位测量的频谱图显示TOI领先梯度的高度局部化和可变结构，在TOI内或TOI之前没有结构或闪烁。
英文摘要：
In this paper we study a tongue of ionization (TOI) on 31 October 2011 which stretched across the polar cap from the Canadian dayside sector to Svalbard in the nightside ionosphere. The TOI front arrived over Svalbard around 1930 UT. We have investigated GPS scintillation and irregularities in relation to this TOI front. This is the first study presenting such detailed multi-instrument data of scintillation and irregularities in relation to a TOI front. Combining data from an all-sky imager, the European Incoherent Scatter Svalbard Radar, the Super Dual Auroral Radar Network Hankasalmi radar, and three GPS scintillation and total electron content (TEC) monitors in Longyearbyen and Ny-Ålesund, we observe bursts of phase scintillation and no amplitude scintillation in relation to the leading gradient of the TOI. Spectrograms of 50 Hz phase measurements show highly localized and variable structuring of the TOI leading gradient, with no structuring or scintillation within the TOI or ahead of the TOI.
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