Dayside transients, such as hot flow anomalies, foreshock bubbles, magnetosheath jets, flux
transfer events, and surface waves, are frequently observed upstream from the bow shock …

This study surveys space weather effects on GNSS (Global Navigation Satellite System)
signals in the nighttime auroral and polar cap ionosphere using scintillation receivers, all …

The climatology map of the GPS phase scintillation identifies two regions of high scintillation
occurrences: around magnetic noon and around magnetic midnight. The scintillation …

The geomagnetic storm of 17–18 March 2015 was caused by the impacts of a coronal mass
ejection and a high‐speed plasma stream from a coronal hole. The high‐latitude ionosphere …

This paper investigates the relative scintillation level associated with cusp dynamics
(including precipitation, flow shears, etc.) with and without the formation of polar cap patches …

We present two examples from the cusp ionosphere over Svalbard, where poleward moving
auroral forms (PMAFs) are causing significant phase scintillation in signals from navigation …

In this paper we study how GPS, GLONASS, and Galileo navigation signals are
compromised by strong irregularities causing severe phase scintillation (σϕ> 1) in the …

Ionospheric irregularities impair Global Navigation Satellite System (GNSS) signals and, in
turn, affect the performance of GNSS positioning. Such effects are especially evident at low …

First experimental proof of a clear and strong dependence of the standard phase scintillation
index (σφ) derived using Global Positioning System measurements on the ionospheric …

The magnetosphere substorm plays a crucial role in the solar wind energy dissipation into
the ionosphere. We report on the intensity of the high-latitude ionospheric irregularities …