Abstract. The comparative research of the influence of different types of auroral particle precipitation and polar cap patches (PCP) on the GPS signals disturbances in the polar ionosphere was done. For this purpose, we use the GPS scintillation receivers at Ny-Ålesund and Skibotn, operated by the University of Oslo. The presence of the auroral particle precipitation and polar cap patches was determined by using data from the EISCAT 42 m radar on Svalbard. The optical aurora observations in 557.7 nm, 630.0 nm spectrum lines on Svalbard were used as well for the detection of ionospheric disturbances. The cusp identification was done with using SuperDARN (Hankasalmi) data. We consider about 150 events when the simultaneous EISCAT 42 m and GPS data were available for the 2010–2017 years, in paper we present in detail only typical examples describing the overall picture. It was considered the dayside/cusp precipitation, substorm precipitations, daytime and nighttime PCP, precipitation associated with the interplanetary shock wave arrival. Cusp phase scintillations are lower than dayside PCP scintillations. We demonstrate that substorm-associated precipitations (even without PCP) can lead to a strong GPS phase (σ_ϕ) scintillations up to ~2 radians which is much stronger than those usually produced by other types of the considered ionosphere disturbances. At the same PCPs can lead to stronger ROT (rate of total electron content) variations. So our observations suggest that the substorms and PCPs, being different types of the high-latitude disturbances, lead to the development of different types and scales of ionospheric irregularities.

中文翻译：

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不同类型的电离层扰动对极纬度GPS信号的影响

摘要。对极光电离层中不同类型的极光颗粒降水和极地冠斑（PCP）对GPS信号扰动的影响进行了比较研究。为此，我们使用由奥斯陆大学运营的Ny-Ålesund和Skibotn的GPS闪烁接收器。通过使用斯瓦尔巴特群岛上EISCAT 42 m雷达的数据来确定极光颗粒降水和极地冠斑的存在。在斯瓦尔巴特群岛的557.7 nm，630.0 nm光谱线上的光学极光观测也被用于电离层扰动的检测。使用SuperDARN（Hankasalmi）数据进行尖端鉴定。我们考虑了2010年至2017年同时提供EISCAT 42 m和GPS数据的约150个事件，在本文中，我们仅详细介绍描述整体情况的典型示例。它被认为是日间/尖顶降水，亚暴雨降水，白天和夜间的五氯苯酚，与行星际激波到达有关的降水。尖锐相位闪烁低于白天PCP闪烁。我们证明了与亚暴有关的降水（即使没有PCP）也会导致GPS相位强（σ_sc）闪烁高达2弧度，比其他类型的电离层扰动通常产生的闪烁强得多。同时，PCP可能导致更强的ROT（总电子含量率）变化。因此，我们的观察结果表明，亚暴和PCPs是高纬度干扰的不同类型，导致了电离层不规则性的不同类型和规模的发展。