Geology

Decorrelation

Interplanetary scintillation

Computer science

Plasma

Optics

Astronomy

Quantum mechanics

Scintillation

Solar wind

Coronal mass ejection

Detector

Algorithm

Magnetic field

Satellite

Earth's magnetic field

Geophysics

Ionosphere

Physics

Ionospheric heater

IEEE Transactions on Aerospace and Electronic Systems

Low-latitude ionospheric behavior directly interferes with a wide range of applications dependent on signals and information from satellites. The most severe and variable events are plasma bubbles and ionospheric scintillation. During plasma bubble events, large and steep plasma density gradients may intersect transionospheric signal from satellites, especially around the equatorial anomaly region. Large ionospheric spatial gradients (or decorrelations) are a critical component of ionospheric threat models for global navigation satellite systems augmentation systems; however, the models cannot assimilate abrupt changes in ionospheric behavior. In this article, an investigation of the relationship between plasma depletions, the occurrence of scintillation, and strong ionospheric spatial decorrelation events was conducted. The results indicate that strong scintillations occur when large gradients are verified. Additionally, the most critical ionospheric spatial gradients were verified mostly under certain condi...

Strong Ionospheric Spatial Gradient Events Induced by Signal Propagation Paths Aligned With Equatorial Plasma Bubbles