Results 81 to 90 of about 1,931,166 (164)

Tomographic Imaging of Ionospheric Plasma Bubbles Based on GNSS and Radio Occultation Measurements

Remote Sensing, 2018
Total electron content measurements given by the global navigation satellite system (GNSS) have successfully presented results to capture the signatures of equatorial plasma bubbles.
Fabricio dos Santos Prol, Manuel Hernández-Pajares, Marcio Tadeu de Assis Honorato Muella, Paulo de Oliveira Camargo   +3 more
doaj   +1 more source

Gravity Wave Seeding of Equatorial Plasma Bubbles [PDF]

, 1997
Some examples from the Atmosphere Explorer E data showing plasma bubble development from wavy ion density structures in the bottomside F layer are described.
Power, R. A., Singh, Sardul, Johnson, F. S.   +2 more
core  

Predicting Swarm Equatorial Plasma Bubbles via Machine Learning and Shapley Values [PDF]

, 2023
In this study we present AI Prediction of Equatorial Plasma Bubbles (APE), a machine learning model that can accurately predict the Ionospheric Bubble Index (IBI) on the Swarm spacecraft.
Lewis, G, Aa, E, Kataria, DO, Smith, A, Bortnik, J, Aruliah, A, Reddy, SA, Forsyth, C   +7 more
core  

Optical Measurements of Equatorial Plasma Depletions From Christmas Island

Night time equatorial F region plasma irregularities (depletions) can significantly affect low-latitude communications and navigation systems. Deep plasma depletions referred to as plasma bubbles, can rise through the F region peak up to the topside ...
Taylor, Michael J., Chapagain, Narayan P.   +1 more
core   +1 more source

The Impacts of Zonal and Meridional Winds on the Observed Occurrence Rate of Equatorial Plasma Bubbles

Geophysical Research Letters
Post‐sunset equatorial plasma bubble (EPB) formation is believe to be influenced by factors including thermospheric neutral winds. This study characterizes pre‐sunset neutral winds observed by ICON on EPB occurrences observed by GOLD over the east ...
V. J. Adkins, S. L. England, A. W. Stephan   +2 more
doaj   +1 more source

Multi-scale irregularities product for space weather applications utilizing high-resolution Swarm plasma density data

Journal of Space Weather and Space Climate
The Earth’s ionospheric dynamics are multi-scale in nature, and the small-scale phenomena have been difficult to measure by in-situ techniques because of low data resolution.
Jin Yaqi, Spogli Luca, Kotova Daria, Wood Alan, Urbář Jaroslav, Alfonsi Lucilla, Hoque Mohammed Mainul, Miloch Wojciech   +7 more
doaj   +1 more source

Equatorial Plasma Bubbles Observed over Tenerife

Equatorial plasma bubbles consist of ionospheric density irregularities at different scales, therefore multi-instrument observations are important to fully understand their structures.
Sato, Hiroatsu, Geach, Christopher Peter, Rahrah, Yassine, Gauthier, Arthur   +3 more
core  

GOLD Observations of Equatorial Plasma Bubbles Reaching Mid‐Latitudes During the 23 April 2023 Geomagnetic Storm

Space Weather
A coronal mass ejection erupted from the Sun on 21 April 2023 and created a G4 geomagnetic storm on 23 April. NASA's global‐scale observations of the limb and disk (GOLD) imager observed bright equatorial ionization anomaly (EIA) crests at ∼25° Mlat, ∼11°
Deepak Kumar Karan, Carlos R. Martinis, Richard W. Eastes, Robert E. Daniell, William E. McClintock, Chao‐Song Huang   +5 more
doaj   +1 more source

Simulation study of the impacts of E-region density on the growth of equatorial plasma bubbles

Frontiers in Astronomy and Space Sciences
Equatorial plasma bubbles (EPBs) in the ionospheric F region are notorious for causing severe scintillation in radio signals, posing significant challenges for communication and navigation systems.
Tatsuhiro Yokoyama
doaj   +1 more source

Properties and Propagation of Plasma Bubbles Observed Over Brazil During the SpreadFEx Campaign 2005

Plasma irregularities in equatorial Spread F region during the night time can significantly affect low latitude communications and navigation systems. The morphology, structure, and dynamics of equatorial plasma irregularities (or plasma bubbles) have ...
Pautet, D., Haase, J. S., Fritts, D. C., Chapagain, N. P., Dautermann, T., Taylor, M. J.   +5 more
core   +1 more source