Results 81 to 90 of about 2,583 (231)

Global Effect of Long‐Lasting 07–12 October 2024 Geomagnetic Storms During the Transition From a Strong (G3) to a Severe (G4) on the Geomagnetic Field and Ionospheric Parameters Distribution

Space Weather, Volume 24, Issue 7, July 2026.
Abstract This study investigates the co‐evolution of geomagnetic field disturbances with ionospheric parameters and their characteristic latitudinal signatures by conducting a location and time‐dependent analysis of the 07–12 October 2024 events, to fill crucial gaps in understanding the coupled response of the magnetosphere‐ionosphere system. This has
Yekoye Asmare Tariku
wiley   +1 more source

Space- and ground-based investigations of solar wind-magnetosphere-ionosphere coupling [PDF]

, 2006
This paper provides a brief review of the understanding of the coupled solar wind–magnetosphere–ionosphere system that can be attained from observations of the size of the ionospheric polar caps from space and the ground.
Milan, S. E., Wild, J. A., Draper, N. C., Grocott, A.   +3 more
core  

Sudden commencement event of 17 April 2002: Aspects of the geomagnetic response at low latitudes [PDF]

, 2005
An analysis of a sudden commencement (SC) manifestation reveals a significant contribution of the polar current system which influences the long-term behavior of the H component at low-latitude ground stations located in the subsolar sector. A transition
Zhang, T.L., P. Di Giuseppe, M. Piersanti, M. Vellante, Villante, U., T. L. Zhang, Di Giuseppe, P., W. Magnes, Vellante, M., Magnes, W., Villante U., Piersanti, M.   +11 more
core   +1 more source

Effects of Waves on the Spectral Anisotropy of the Transition Range in Solar Wind Turbulence

The Astrophysical Journal
In the transition range of the solar wind turbulence, the magnetic spectrum has been observed to be strongly anisotropic with respect to the local mean field. However, the generation mechanism of the anisotropy remains not well understood.
Hua Zhang, Xin Wang, Haochen Yuan
doaj   +1 more source

Evolution of the interplanetary magnetic field [PDF]

, 1994
Remote observations of magnetic field topologies in the solar corona and in situ observations of the solar wind and interplanetary magnetic field (IMF) in interplanetary space are used to examine the temporal evolution of the spatial distribution of open and closed field regions emanating from the Sun.
openaire   +1 more source

A Model for Recommending Historical Similar Events in Forecasting CME Geoeffectiveness

Space Weather, Volume 24, Issue 7, July 2026.
Abstract Coronal mass ejections (CMEs) are among the key solar eruptive activities, triggering space weather disturbances. Thus, forecasting their geoeffectiveness has become a research focus. This study constructs a model to recommend similar events for forecasting the geoeffectiveness of CMEs.
Yurong Shi, Bingxian Luo, Jingjing Wang, Yanhong Chen, Siqing Liu   +4 more
wiley   +1 more source

Synoptic Maps of Solar Magnetic Field and Open Magnetic Flux

The Astrophysical Journal
The interplanetary magnetic field (IMF) measured near Earth can be up to 2 times greater than that derived from models using remote solar observations.
Yang Liu, C. Nick Arge, Shaela I. Jones, Andrew Leisner, Ruizhu Chen, J. Todd Hoeksema   +5 more
doaj   +1 more source

Scaling Anisotropy with Stationary Background Field in Near-Sun Solar Wind Turbulence

The Astrophysical Journal, 2023
The scaling of magnetic fluctuations provides crucial information for the understanding of solar wind turbulence. However, the observed magnetic fluctuations contain not only turbulence but also magnetic structures, leading to the violation of time ...
Honghong Wu, Jiansen He, Shiyong Huang, Liping Yang, Xin Wang, Zhigang Yuan   +5 more
doaj   +1 more source

Large, Long‐Lasting Mid‐Latitude Geomagnetically Induced Currents During a Moderate Geomagnetic Storm

Space Weather, Volume 24, Issue 7, July 2026.
Abstract Geomagnetically Induced Currents (GICs) are a key space weather hazard to ground‐based infrastructure, and can cause mis‐operation or even equipment failure. The solar wind interacts with the Earth's geomagnetic field, causing the magnetic field at ground level to vary with time.
A. W. Smith, C. J. Rodger, I. J. Rae, D. H. Mac Manus, M. A. Clilverd, J. Malone‐Leigh, J. C. Coxon, C. D. Beggan, J. Hübert, A. Renton, A. P. Dimmock, C. Forsyth, M.‐T. Walach, W. Sun, K. M. Pratscher, T. Petersen, M. Dalzell   +16 more
wiley   +1 more source

Kinematic models of the interplanetary magnetic field [PDF]

Annales Geophysicae, 2019
Abstract. Current knowledge on the description of the interplanetary magnetic field is reviewed with an emphasis on the kinematic approach as well as the analytic expression. Starting with the Parker spiral field approach, further effects are incorporated into this fundamental magnetic field model, including the latitudinal dependence, the poleward ...
Christoph Lhotka, Yasuhito Narita
openaire   +4 more sources