Results 61 to 70 of about 408,077 (211)

Intense Magnetopause Erosion at Earth During the May 2024 Solar Storm

Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract Earth's main magnetic field forms the magnetosphere, shielding the planet from solar wind plasma. Southward interplanetary magnetic fields erode the magnetosphere, a process known as magnetopause erosion, allowing solar wind penetration close to the Earth.
Kazuhiro Yamamoto, Yoshizumi Miyoshi, Naritoshi Kitamura, Rumi Nakamura, Atsuki Shinbori, Ayako Matsuoka, Mariko Teramoto, Shoichiro Yokota, Satoshi Kasahara, Kunihiro Keika, Tomoaki Hori, Kazushi Asamura, Yoichi Kazama, Shiang‐Yu Wang, Sunny Wing‐Yee Tam, Tzu‐Fang Chang, Bo‐Jhou Wang, Chae‐Woo Jun, Iku Shinohara   +18 more
wiley   +1 more source

First simultaneous observations of flux transfer events at the high-latitude magnetopause by the cluster spacecraft and pulsed radar signatures in the conjugate ionosphere by the CUTLASS and EISCAT radars [PDF]

, 2001
Cluster magnetic field data are studied during an outbound pass through the post-noon high-latitude magnetopause region on 14 February 2001. The onset of several minute perturbations in the magnetospheric field was observed in conjunction with a ...
Fornacon, K.-H., Davies, J. A., Cowley, S. W. H., Balogh, A., Milan, S. E., Provan, G., Lester, M., Georgescu, E., Wild, J. A., Khan, H., Dunlop, M. W., Yeoman, T. K.   +11 more
core   +2 more sources

The Key Role of Cold Ionospheric Ions As a Source of Hot Magnetospheric Plasma and As a Driver of the Dynamics of Substorms and Storms

Frontiers in Astronomy and Space Sciences, 2021
The solar wind has been seen as the major source of hot magnetospheric plasma since the early 1960’s. More recent theoretical and observational studies have shown that the cold (few eV) polar wind and warmer polar cusp plasma that flow continuously ...
C. R. Chappell, A. Glocer, B. L. Giles, T. E. Moore, M. M. Huddleston, D. L. Gallagher   +5 more
doaj   +1 more source

Empirical Parameterizations of ULF Power and Drift Orbit Averaged Radial Diffusion Coefficients From Ground Magnetometers for Different MLT

Earth and Space Science, Volume 13, Issue 11, November 2026.
Abstract Radial diffusion, driven by ultra‐low frequency (ULF) waves, is an important process for the transport of electrons in the outer radiation belt. Ground magnetometers give us constant observations of such ULF waves but their usefulness is limited by the models used to transform ground measurements into their progenitor fields in space.
S. Dimitrakoudis, G. Balasis, A. Z. Boutsi, I. A. Daglis, C. Papadimitriou, C. Katsavrias, M. Georgiou, J. Lichtenberger   +7 more
wiley   +1 more source

Radio tomographic imaging of the northern high-latitude ionosphere on a wide geographic scale [PDF]

, 2005
Several chains of receivers, measuring total electron content (TEC) during passes of satellites in the U.S. Navy Ionospheric Measuring System (NIMS), are operated at northern high latitudes by members of the International Ionospheric Tomography Community
Bailey, G.J., Jakowski, N., Fremouw, E., Bust, G., Denton, M.H., Kersley, L., Pryse, Elery, Jakowski, Norbert, Pryse, S.E., Secan, J., Kersley, Len   +10 more
core  

Combining incoherent scatter radar data and IRI-2007 to monitor the open-closed field line boundary during substorms [PDF]

, 2010
The size of the polar cap is very important for understanding the substorm process as well as reconnection rates in general. In this work we build on previous studies which use a combination of European Incoherent Scatter radar (EISCAT) electron ...
Wild, J.A., Senior, A., Milan, S.E., Woodfield, E.E., Kavanagh, A.J.   +4 more
core   +4 more sources

Is Magnetic Reconnection Dominantly Spatially or Temporally Variable: First Results From TRACERS

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract The Tandem Reconnection And Cusp Electrodynamics Reconnaissance Satellites (TRACERS) small explorer mission was designed to: Determine whether magnetopause reconnection is primarily spatially or temporally variable for a range of solar wind conditions. Observations from the Analyzers for Cusp Ions (ACIs) on the two TRACERS spacecrafts are used
S. A. Fuselier, C. A. Kletzing, D. M. Miles, S. R. Bounds, J. B. Bonnell, I. H. Cairns, H. Cao, J. D. Furman, R. G. Gomez, K. Goodrich, J. S. Halekas, G. Hospodarsky, Y. Lin, J. LaBelle, K. LLera, J. Mukherjee, M. Øieroset, S. M. Petrinec, R. Roglans, O. Santolik, R. Strangeway, K. J. Trattner, S. K. Vines   +22 more
wiley   +1 more source

Impact of Solar Radiation Pressure, Coriolis Force, and Exobase Conditions on Terrestrial Exospheric Density: MATE Simulation Results

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract We improved the Model for Analyzing the Terrestrial Exosphere (MATE), a kinetic exosphere model, by incorporating solar radiation pressure and Coriolis force arising from the Earth's revolution around the Sun, in addition to Earth's gravity, to investigate their impacts on the terrestrial exospheric hydrogen density. Under constant and uniform
Sang‐Yun Lee, Hyunju K. Connor
wiley   +1 more source

Observations of the Polar Ionosphere by the Vertical Incidence Pulsed Ionospheric Radar at Jang Bogo Station, Antarctica

Journal of Astronomy and Space Sciences, 2020
Korea Polar Research Institute (KOPRI) installed an ionospheric sounding radar system called Vertical Incidence Pulsed Ionospheric Radar (VIPIR) at Jang Bogo Station (JBS) in 2015 in order to routinely monitor the state of the ionosphere in the auroral
Young-Bae Ham, Geonhwa Jee, Changsup Lee, Hyuk-Jin Kwon, Jeong-Han Kim, Nikolay Zabotin, Terence Bullett   +6 more
doaj   +1 more source

ELFIN Statistics of Electron Strong Diffusion in the Inner Magnetosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract Pitch‐angle diffusion of trapped electrons driven by whistler‐mode and EMIC waves and by field‐line curvature scattering (FLCS) plays an important role in energetic and relativistic electron loss from the inner magnetosphere. The strong diffusion regime, characterized by a nearly full loss cone, rarely occurs, but is expected to account for a ...
Emile Saint‐Girons, Didier Mourenas, Anton V. Artemyev, Xiao‐Jia Zhang, Vassilis Angelopoulos   +4 more
wiley   +1 more source