Results 81 to 90 of about 197,251 (258)

Statistical Study on the Effect of Meridional Neutral Wind on the Occurrence of Post‐Sunset Equatorial Ionospheric Irregularities

Space Weather
The navigation and radio communication systems experience significant disruptions due to post‐sunset equatorial ionospheric irregularities. There is ongoing debate regarding the impact of meridional/trans‐equatorial wind speed on these irregularities ...
Bantayehu Aderaw, Melessew Nigussie
doaj   +1 more source

Characterization of ionospheric irregularities at different longitudes during quiet and disturbed geomagnetic conditions

Journal of Atmospheric and Solar-Terrestrial Physics, 2019
This paper investigates the plasma irregularities at different longitudes in the month of March 2015; a period that consists of both quiet and disturbed geomagnetic conditions.
O. Bolaji, S. J. Adebiyi, J. B. Fashae
semanticscholar   +1 more source

Intense Ground Magnetic Perturbations During the 2024 May and October Geomagnetic Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The May and October 2024 geomagnetic storms represent two of the most intense space weather events of Solar Cycle 25. While differing in global intensity, both storms produced extreme ionospheric disturbances, including equatorward auroral expansion to mid‐latitudes and rapid geomagnetic variations (dH/dt $\text{dH}/\text{dt}$).
P. De Michelis, E. Consolini, F. Giannattasio, G. Consolini   +3 more
wiley   +1 more source

Quiet‐Time Equatorial Ionization Anomaly Reversal Observed by the Satellites of Defense Meteorological Satellite Program (DMSP) and Ionospheric Connection Explorer (ICON)

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract We investigated the quiet‐time temporal variations of the Equatorial Ionization Anomaly (EIA) and underlying plasma fountain observed in the topside ionosphere during the various F‐region equatorial E × B drift events recorded by the Jicamarca Incoherent Scatter Radar and simulated by SAMI3.
Ildiko Horvath, Brian C. Lovell
wiley   +1 more source

Power Spectral Characteristics of Martian Ionospheric Irregularities

The Astrophysical Journal
The intrinsic magnetic field of a planet plays a key role in its ionospheric dynamics. Mars lacks a global magnetic field, thus ionospheric plasma is weakly coupled to crustal and induced magnetic field.
Chougule Prathmesh, Bharati Kakad, Amar Kakad   +2 more
doaj   +1 more source

Drifting Ionospheric Scintillation Simulation for L-Band Geosynchronous SAR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
An L-band geosynchronous synthetic aperture radar (GEO SAR) is susceptible to the ionospheric scintillation induced by ionospheric irregularities due to its lower carrier frequency.
Feixiang Tang, Yifei Ji, Yongsheng Zhang, Zhen Dong, Zhaokai Wang, Qingjun Zhang, Bingji Zhao, Heli Gao   +7 more
doaj   +1 more source

On Inconsistent ROTI Derived From Multiconstellation GNSS Measurements of Globally Distributed GNSS Receivers for Ionospheric Irregularities Characterization

Radio Science, 2019
This study for the first time presents an investigation into the exploitation of multi‐Global Navigation Satellite System (GNSS) observations (Global Positioning System, Globalnaya Navigazionnaya Sputnikovaya Sistema, Galileo, and BeiDou) to characterize
Zhizhao Liu, Zhe Yang, Dongyang Xu, Y. Morton   +3 more
semanticscholar   +1 more source

Global GNSS Observation of Mesoscale Ionospheric Irregularities (2006–2024)

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Mesoscale ionospheric irregularities are statistically investigated using an unprecedented 19‐year long‐term global GNSS (Global Navigation Satellite System) TEC (total electron content) data set. These irregularities are represented by ionospheric fluctuations within a 5°× ${}^{\circ}\times $ 3.75° ${}^{\circ}$ (latitude by longitude) region ...
Shun‐Rong Zhang, Jing Liu, Anthea J. Coster, Sevag Derghazarian, Philip J. Erickson, Larisa P. Goncharenko, Nestor Aponte, William Rideout   +7 more
wiley   +1 more source

Investigation of the relationship between the spatial gradient of total electron content (TEC) between two nearby stations and the occurrence of ionospheric irregularities

, 2019
. The relation between the occurrence of ionospheric irregularities and the spatial gradient of total electron content (TEC) derived from two closely located stations (ASAB: 4.34 ∘  N, 114.39 ∘  E and DEBK: 3.71 ∘  N, 109.34 ∘  E, geomagnetic), located ...
Teshome Dugassa, J. Bosco Habarulema, M. Nigussie   +2 more
semanticscholar   +1 more source

Longitudinal and Seasonal Variability of Equatorial Ionospheric Irregularities and Electrodynamics

Space Weather, 2018
Over the past decades significant progresses have been done to understand the origin of seeding mechanisms of ionospheric irregularities. However, characterization of the global ionospheric irregularities as a function of local time, longitude, and ...
E. Yizengaw, K. Groves
semanticscholar   +1 more source