Results 41 to 50 of about 87,867 (198)

GPS phase scintillation and proxy index at high latitudes during a moderate geomagnetic storm [PDF]

Annales Geophysicae, 2013
The amplitude and phase scintillation indices are customarily obtained by specialised GPS Ionospheric Scintillation and TEC Monitors (GISTMs) from L1 signal recorded at the rate of 50 Hz.
P. Prikryl, R. Ghoddousi-Fard, B. S. R. Kunduri, E. G. Thomas, A. J. Coster, P. T. Jayachandran, E. Spanswick, D. W. Danskin   +7 more
doaj   +1 more source

An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite

Annals of Geophysics, 2013
The global positioning system (GPS) phase scintillation caused by high-latitude ionospheric irregularities during an intense high-speed stream (HSS) of the solar wind from April 29 to May 5, 2011, was observed using arrays of GPS ionospheric ...
Paul Prikryl, Yongliang Zhang, Yusuke Ebihara, Reza Ghoddousi-Fard, Periyadan T. Jayachandran, Joe Kinrade, Cathryn N. Mitchell, Allan T. Weatherwax, Gary Bust, Pierre J. Cilliers, Luca Spogli, Lucilla Alfonsi, Vincenzo Romano, Baiqi Ning, Guozhu Li, Martin J. Jarvis, Donald W. Danskin, Emma Spanswick, Eric Donovan, Mike Terkildsen   +19 more
doaj   +1 more source

Time Lags between Ionospheric Scintillation Detection and Geomagnetic Storms at Auroral Latitudes

, 2020
This dataset contains ionospheric scintillation event data of 13 GNSS ionospheric scintillation monitors reported in the paper 'Time Lags between Ionospheric Scintillation Detection and Geomagnetic Storms at Auroral Latitudes' by Zhe Yang, Y. Jade Morton,
Liu, Yuxiang, Morton, Jade, Yang, Zhe
core   +1 more source

Evaluating the Impact of Multiscale E‐Region Turbulence on HF Scintillation

Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract Ionospheric scintillation driven by plasma irregularities disrupts radio propagation across frequencies from HF to L‐band. While phase‐screen methods dominate scintillation modeling, they can be inadequate in the E‐region where irregularity scales can be comparable to the radio wavelength or Fresnel scale and span orders of magnitude.
Alexander Q. Green, William J. Longley, Matthew A. Young, Meers M. Oppenheim   +3 more
wiley   +1 more source

Machine Learning Modeling of Narrow SAID‐Like Spikes in Duskside Subauroral Flows From 11‐Year DMSP Observations

Space Weather, Volume 24, Issue 11, November 2026.
Abstract Subauroral ion drifts (SAID) are narrow, intense westward plasma flows. However, their narrow latitudinal distribution and possible overlap with broader subauroral flows pose significant challenges for accurate modeling. This study proposes a dual‐modal model that takes magnetic latitude, magnetic local time, day of year, solar F10.7 index ...
Haobo Hu, Xinshuang Pan, Shuhan Li, Jing Liu, Xuanqing Liu, Yu Jiao, Tianyu Cao   +6 more
wiley   +1 more source

Deep Learning—Based Airglow Fusion and Forecasting for Equatorial Plasma Bubble Monitoring and GNSS Scintillation Prediction

Space Weather, Volume 24, Issue 11, November 2026.
Abstract Equatorial plasma bubbles (EPBs) are major low‐latitude ionospheric irregularities that can cause scintillation and degrade Global Navigation Satellite System (GNSS) performance. Existing amplitude‐scintillation prediction methods primarily use historical GNSS observations and ionospheric parameters, but rarely incorporate the evolving spatial
Haoyang Guo, Gang Chen, Jiyao Xu, Shaodong Zhang, Yang Qin, Yuanlin Jia, Min Zhang, Pengfei Hu, Yue Zhu, Yuanyuan Hou   +9 more
wiley   +1 more source

Analysis of the ionospheric scintillations during 20-21 January 2015 from SANAE by means of the DemoGRAPE scintillation receivers

, 2017
This paper presents ionospheric scintillation data recorded at SANAE in Antarctica during a moderate geomagnetic storm on 20-21 January 2016 which gives evidence of the advantages of the new generation of instrumentation for monitoring ionospheric ...
Cilliers, P. J., Cesaroni, Claudio, Linty, Nicola, Ward, J., De Franceschi, Giorgiana, Terzo, Olivier, Dovis, Fabio, Alfonsi, Lucilla, Romano, Vincenzo, Stephenson, J. A. E., Spogli, Luca, Hunstad, Ingrid   +11 more
core   +1 more source

Long‐Term Increase in Equatorial Rayleigh‐Taylor Instability: Synergistic Effects of Greenhouse Gas Cooling and Geomagnetic Field Secular Variation

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Equatorial plasma bubbles (EPBs) are ionospheric irregularities generated by Rayleigh–Taylor instability (RTI) that disrupt satellite communications. We quantify secular change of RTI growth rates and isolate underlying drivers using WACCM‐X simulations.
Liying Qian, Chih‐Ting Hsu, Wenbin Wang, Shun‐Rong Zhang, Joseph McInerney   +4 more
wiley   +1 more source

Unusual Enhancement in He(23S) Airglow Brightness Associated With Interplanetary Magnetic Field Northward Turnings During the 2025 New Year's Day Storm

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract The upper thermosphere is important in the context of space weather, but continuous monitoring of the thermosphere at high latitudes remains limited despite its strong variations associated with geomagnetic activity. Orthohelium, He(23S), is found from the upper thermosphere to lower exosphere, and is a promising tracer of atmospheric dynamics.
Takanori Nishiyama, Masato Kagitani, Noora Partamies, Daniel Whiter, Takuo T. Tsuda, Yasunobu Ogawa, Fred Sigernes   +6 more
wiley   +1 more source

Detection and Analysis of an Upward Jet‐Like Electrical Discharge Intercepting a High‐Altitude Research Aircraft

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract During a 2023 field campaign, a NASA ER‐2 research aircraft intercepted an upward jet‐like electrical discharge at 20 km altitude over an intense tropical thunderstorm. This event was analyzed using airborne multispectral optical sensors, electric field mills, X‐band radar, passive microwave, and ground‐based radio networks.
T. J. Lang, A. Mezentsev, M. G. Quick, C. G. Amiot, M. Bateman, R. Blakeslee, S. Cummer, G. M. Heymsfield, R. A. Kroodsma, N. G. Lehtinen, D. Mach, M. Marisaldi, M. Walker McLinden, N. Østgaard, M. Pazos, D. A. S. Sarria, C. J. Schultz, T. D. Walker, O. van der Velde, K. Virts   +19 more
wiley   +1 more source