Results 111 to 120 of about 2,061,225 (235)

Spacecraft cluster cloud high-frequency optimization computing theory

, 2022
A brief ...
openaire   +1 more source

Statistical Analysis of Storm‐Time O+ Outflows as Observed by the Van Allen Probes

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract The outflow of low‐energy O+ ${\mathrm{O}}^{+}$ ions into inner magnetosphere is a key contributor to the warm plasma cloak, and O+ torus, which can also contribute to storm time ring current particularly after local acceleration. Although O+ ${\mathrm{O}}^{+}$ outflows are well observed, their source and transport in the inner magnetosphere ...
Aditi Upadhyay, Matina Gkioulidou, Shin‐ichi Ohtani, Ian J. Cohen   +3 more
wiley   +1 more source

Omega Bands as a Source of Large dB/dt in the Dawn Sector

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract Omega band activity has the potential to cause geomagnetically induced currents as they can cause large values of dB/dt $\mathrm{d}B/\mathrm{d}t$. We have undertaken a multi‐instrument study of an omega event which occurred from 13 to 14 November 2012, during a period of southward IMF. Measurements from the European Incoherent SCATter (EISCAT)
R. M. Hodnett, S. E. Milan, S. Nozawa, T. Raita, J. W. Gjerloev, S. K. Vines, L. J. Paxton   +6 more
wiley   +1 more source

Cluster four spacecraft measurements of small traveling compression regions in the near‐tail [PDF]

, 2003
J. A. Slavin, C. J. Owen, M. W. Dunlop, E. Borälv, Mark B. Moldwin, D. G. Sibeck, E. I. Tanskanen, M. L. Goldstein, A. N. Fazakerley, A. Balogh, E. Lucek, Ingo Richter, H. Rème, J. M. Bosqued   +13 more
openalex   +1 more source

The Substorms of 26 February 2008: A Data‐Mining Perspective

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Reconstruction of the magnetospheric magnetic field using swarms of virtual spacecraft provided by data mining confirms seminal in situ evidence (Angelopoulos et al., 2008, https://doi.org/10.1126/science.1160495) that on 26 February 2008 an X‐line emerged in the region between two distant Time History of Events and Macroscale Interactions ...
M. I. Sitnov, G. K. Stephens, T. Motoba, N. A. Tsyganenko   +3 more
wiley   +1 more source

KHI Development Between Inner LLBL and Magnetosphere on the Far Flanks as Observed by the MMS Mission

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract A boundary layer of finite thickness separates the magnetosheath and the magnetosphere. Within this boundary, we have the outer low‐latitude boundary layer (LLBL), the magnetopause current layer, and the inner LLBL. Earlier works point out that the interface on which Kelvin‐Helmholtz Instability (KHI) develops has implications for how ...
Dinesh K. V. Radhakrishnan, Stephen A. Fuselier, Katariina Nykyri, K.‐J. Hwang, Steven M. Petrinec, Daniel J. Gershman, James L. Burch   +6 more
wiley   +1 more source

Laboratory Realization of Magnetopause‐Like Reconnection in Space Plasma Environment Research Facility (SPERF)

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Magnetic reconnection explosively converts magnetic energy into plasma heating and particle acceleration. At Earth's magnetopause, reconnection governs solar wind‐magnetosphere coupling and drives global convection. Understanding these processes requires resolving reconnection's spatiotemporal evolution, which is difficult for in situ ...
Kai Huang, Wenbin Ling, Huibo Tang, Jian Guan, Jihua Yang, Jiayin Xie, Gaoyuan Peng, Hanru Ma, Nan Wang, Tianyi Zhang, Zheng Cao, Shangkun Ren, Yangguang Ke, Ke Han, Yunning Dong, Yaowen Lu, Peng E, Quanming Lu   +17 more
wiley   +1 more source

Analysis of Field-Aligned Currents in the High-Altitude Nightside Auroral Region: Cluster Observation

Journal of Astronomy and Space Sciences, 2019
In this paper we present analysis of current density when the Cluster spacecraft pass the nightside auroral region at about 4-5 RE from the center of Earth. The analysis is made when the inter-spacecraft separation is within 200 km, which allows all four
Youra Shin, Ensang Lee, Jae-Jin Lee
doaj   +1 more source

Extreme Magnetopause Deformation Induced by High‐Speed Jet From Foreshock Transient

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract This study presents comprehensive observations of intense high‐speed jets (HSJs) and their global impacts on the inner magnetosphere and ionosphere, using multi‐satellite and ground‐based observations. Cluster‐4, located near the bow shock, observed signatures associated with foreshock transients generated by a solar wind directional ...
Hyangpyo Kim, Rumi Nakamura, Niklas Grimmich, Adriana Settino, Kyoung‐Joo Hwang, Jaeheung Park, Zoltán Vörös, Cyril Simon Wedlund, Kathryn A. McWilliams   +8 more
wiley   +1 more source

Persistence of the Prereversal Enhancement of the Equatorial Vertical Plasma Drifts Observed by ICON

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract An important feature of equatorial ionospheric electrodynamics is the evening prereversal enhancement (PRE) of the eastward electric fields and the associated vertical plasma drifts. The magnitude, timing, and duration of the PRE are closely connected to the development of postsunset F‐region irregularities.
A. Kirchman, D. L. Hysell
wiley   +1 more source