Simultaneous two hemisphere observations of the presence of polar patches in the nightside ionosphere [PDF]
Annales Geophysicae, 1994 The presence of polar patches as observed simultaneously in the same magnetic meridian of opposite nightside ionospheres by coherent and incoherent scatter radars are described.
A. S. Rodger +5 more
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Influence of different types of ionospheric disturbances on GPS signals at polar latitudes [PDF]
Annales Geophysicae, 2021 The comparative research of the influence of different types of auroral particle precipitation and polar cap patches (PCPs) on the global positioning system (GPS) signals disturbances in the polar ionosphere was done.
V. B. Belakhovsky, Y. Jin, W. J. Miloch
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Two‐Dimensional Reconstruction of Ionospheric Plasma Density Variations Using Swarm
Space Weather, 2020 Space weather phenomena such as scintillations of Global Navigation Satellite Systems (GNSS) signals are of increasing importance for aviation, the maritime, and civil engineering industries.
A. Fæhn Follestad +4 more
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Observations and modeling of scintillation in the vicinity of a polar cap patch
Journal of Space Weather and Space Climate, 2022 Small-scale ionospheric plasma structures can cause scintillation in radio signals passing through the ionosphere. The relationship between the scintillated signal and how plasma structuring develops is complex. We model the development of small-scale plasma structuring in and around an idealized polar cap patch observed by the Resolute Bay Incoherent ...
Leslie J. Lamarche +2 more
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Ionospheric patch formation: Direct measurements of the origin of a polar cap patch [PDF]
Geophysical Research Letters, 2004 We present the first direct measurements documenting the origin of an ionospheric patch, emerging into the polar cap from the noon dark cusp region of the dayside auroral oval. A series of such patches were observed. The observed patch‐formation signatures, in plasma density and velocity, ion and electron temperature, and optical ...
Herbert C. Carlson +3 more
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Polar cap patches and auroral blobs observed with Antarctic HF radars: Preliminary results [PDF]
, 1998 P(論文)We present preliminary results of the Antarctic HF radar observations of decameter-scale irregularities associated with polar cap patches and auroral blobs in the southern high latitude ionosphere.
Pinnock, Mike +7 more
core +1 more source
On a new process for cusp irregularity production [PDF]
Annales Geophysicae, 2008 Two plasma instability mechanisms were thought until 2007 to dominate the formation of plasma irregularities in the F region high latitude and polar ionosphere; the gradient-drift driven instability, and the velocity-shear driven instability.
H. C. Carlson +3 more
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Frontiers in Physics, 2023 Introduction: Magnetopause reconnection is known to impact the dayside ionosphere by driving fast ionospheric flows, auroral transients, and high-density plasma structures named polar cap patches.
Ying Zou +13 more
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Motion of the dayside polar cap boundary during substorm cycles: II. Generation of poleward-moving events and polar cap patches by pulses in the magnetopause reconnection rate [PDF]
Annales Geophysicae, 2005 Using data from the EISCAT (European Incoherent Scatter) VHF and CUTLASS (Co-operative UK Twin-Located Auroral Sounding System) HF radars, we study the formation of ionospheric polar cap patches and their relationship to the magnetopause reconnection ...
M. Lockwood +9 more
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GPS TEC, scintillation and cycle slips observed at high latitudes during solar minimum [PDF]
Annales Geophysicae, 2010 High-latitude irregularities can impair the operation of GPS-based devices by causing fluctuations of GPS signal amplitude and phase, also known as scintillation.
P. Prikryl +7 more
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