Results 151 to 160 of about 91,577 (233)

Propagation characteristics analysis of high-frequency radio waves in the lower ionosphere layers. [PDF]

Heliyon
Esmaeili-Karnawah A, Fallah R, Khorashadizadeh SM, Niknam AR.   +3 more
europepmc   +1 more source

Why Do Sudden Commencements Sometimes Generate Disproportionate Geomagnetically Induced Currents?

Space Weather, Volume 23, Issue 10, October 2025.
Abstract Geomagnetically Induced Currents (GICs) in grounded, conducting infrastructure (e.g., power networks) represent an important space weather hazard. GICs are driven by the changing magnetic field at the Earth's surface. Due to a sparsity of GIC measurements, the rate of change of the horizontal geomagnetic field H′ $\left({H}^{\prime }\right ...
A. W. Smith, C. J. Rodger, K. M. Pratscher, D. H. Mac Manus, I. J. Rae, D. Ratliff, M. A. Clilverd, E. Lawrence, C. D. Beggan, G. S. Richardson, A. R. Fogg, D. M. Oliveira, J. Hübert, T. Petersen, M. Dalzell   +14 more
wiley   +1 more source

GNSS-VTEC prediction based on CNN-GRU neural network model during high solar activities. [PDF]

Sci Rep
Yang TY, Lu JY, Yang YY, Hao YH, Wang M, Li JY, Wei GC.   +6 more
europepmc   +1 more source

Plasma structuring within an expanded polar cap and cusp studied with the SS-520-3 sounding rocket. [PDF]

Earth Planets Space
Buschmann LM, Asamura K, Clausen LBN, Jin Y, Kojima H, Kumamoto A, Kurita S, Ogawa Y, Oksavik K, Saito Y, Spicher A, Yokota S, Miloch WJ.   +12 more
europepmc   +2 more sources

Three‐dimensional Martian ionosphere model: I. The photochemical ionosphere below 180 km

, 2013
F. González-Galindo, J. Chaufray, M. López‐Valverde, G. Gilli, François Forget, François Leblanc, R. Modolo, S. Hess, M. Yagi   +8 more
semanticscholar   +1 more source

Exploring Two‐Dimensional and Three‐Dimensional Propagation of Large‐Scale Traveling Ionospheric Disturbances During the May 2024 Geomagnetic Storm Main Phase

Space Weather, Volume 23, Issue 10, October 2025.
Abstract During the main phase of the May 2024 super geomagnetic storm, we investigated large‐scale traveling ionospheric disturbances (LSTID) using data from densely distributed global GNSS receivers. From both two‐dimensional and three‐dimensional (3D) perspectives, we analyzed LSTID propagation characteristics over North America, European, and ...
Ting Zhang, Yunbin Yuan, Xingliang Huo, Min Li, Kaixin Wang   +4 more
wiley   +1 more source

The Dayside Ionosphere of Mars as Controlled by the Interplay Between Solar Wind Dynamic Pressure and Crustal Magnetic Field Strength. [PDF]

Geophys Res Lett
Qin J, Curry S, Mitchell D, Xu S, Lillis R, Andersson L.   +5 more
europepmc   +1 more source

Ionospheric response to earthquakes of different magnitudes: Larger quakes perturb the ionosphere stronger and longer

, 2013
E. Astafyeva, S. Shalimov, E. Olshanskaya, P. Lognonné   +3 more
semanticscholar   +1 more source

Impacts of the May 2024 Extreme Geomagnetic Storm on Global High‐Accuracy GPS Positioning Solutions

Space Weather, Volume 23, Issue 10, October 2025.
Abstract The May 2024 geomagnetic storm has been recognized as the most severe one in the past two decades and was categorized as an “extreme” (G5) event according to the NOAA space weather scales. This study applies Precise Point Positioning (PPP) software PRIDE PPP‐AR to over 5,800 worldwide GNSS receiver data to highlight the vulnerability of high ...
Zhe Yang, Y. T. Jade Morton
wiley   +1 more source

Mapping the ionosphere with millions of phones. [PDF]

Nature
Smith J, Kast A, Geraschenko A, Morton YJ, Brenner MP, van Diggelen F, Williams BP.   +6 more
europepmc   +1 more source