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Solar cycle effect on geomagnetic storms caused by interplanetary magnetic clouds [PDF]
Annales Geophysicae, 2006 We investigated geomagnetic activity which was induced by interplanetary magnetic clouds during the past four solar cycles, 1965–1998. We have found that the intensity of such geomagnetic storms is more severe in solar maximum than in solar ...
C.-C. Wu +3 more
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Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract A new proton radiation belt was identified during the geomagnetic superstorm of 10–11 May 2024. To investigate its origin, we use an MHD‐test particle simulation to model solar energetic proton (SEP) trapping and the evolution of the initial trapped proton population during the storm.
Murong Qin +10 more
wiley +1 more source
Space WeatherGeomagnetic storms can induce geomagnetically induced currents (GIC) in power systems, posing threats to grid security. In this study, a GIC calculation model for the 500 kV power grid in Guangxi, China, is developed based on one‐dimensional (1D) and ...
Xuejian Zhang +7 more
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Frontiers in Astronomy and Space SciencesThe Disturbance Storm Time (Dst) index serves as a critical indicator for quantifying geomagnetic storm intensity; however, the precise contribution of magnetotail currents to its formation remains inadequately characterized.
Jiawen Yue +6 more
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Ionospheric disturbances following the March 2015 geomagnetic storm from GPS observations in China
Geodesy and Geodynamics, 2018 When strong solar activities and geomagnetic storms happen, satellite communications and navigation system will be strongly disturbed. It is of great significance to monitor ionospheric disturbances, because empirical models cannot capture ionospheric ...
Wenxin Zhang +3 more
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Space Weather, 2023 Global Positioning System (GPS) Precise Point Positioning (PPP) with correct fixing ambiguity resolution (AR) can reach cm‐mm level positioning accuracy. However, this accuracy can be degraded by the geomagnetic storm effects.
Xiaomin Luo +4 more
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Open Magnetic Field Lines Partition Auroral Oval Segments Into Transpolar Arcs
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract Transpolar arcs (TPAs) are auroral structures spanning the polar cap. One type appears in conjugate hemispheres and is thought to be located on closed field lines, but how closed flux enters the open polar cap remains debated. We address this using observation and simulation of conjugate TPAs after an interplanetary magnetic field (IMF) By ...
Xin‐Ming Chen +14 more
wiley +1 more source
AtmosphereThe G5 geomagnetic storm of May 2024 provided a significant opportunity to investigate global ionospheric disturbances using vertical total electron content (VTEC) data derived from 422 GNSS-IGS stations and GIM.
Sanjoy Kumar Pal +11 more
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Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract The North Qiangtang Block occupies a pivotal position within the eastern Tethyan realm, and its paleogeographic reconstruction is critical for constraining Tethyan geometry and evolution. However, its Late Paleozoic paleogeography and Paleo‐Tethyan Ocean–continent configuration remain controversial due to limited reliable age‐constrained ...
Jiahui Zhang +12 more
wiley +1 more source
Space WeatherThe intensity of storm‐time disturbance in the ground magnetic field varies significantly at different longitudes due to the magnetic local time (MLT) dependent contributions from different magnetospheric and ionospheric currents. Local geomagnetic field
S. Tulasi Ram +7 more
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