In this section
@article{Kim:2025:10.1029/2025GL117683,
author = {Kim, H and Nakamura, R and Grimmich, N and Settino, A and Hwang, KJ and Park, J and V枚r枚s, Z and Wedlund, CS and McWilliams, KA},
doi = {10.1029/2025GL117683},
journal = {Geophysical Research Letters},
title = {Extreme Magnetopause Deformation Induced by High-Speed Jet From Foreshock Transient},
url = {http://dx.doi.org/10.1029/2025GL117683},
volume = {52},
year = {2025}
}
TY - JOUR
AB - 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 discontinuity. Downstream of the bow shock, THEMIS-A, positioned post-noon (∼12.8 MLT) in the magnetosheath, detected a sunward plasma flow prior to crossing into the magnetosphere. Nearly simultaneously, THEMIS-E, inside the magnetosphere at ∼13.4 MLT, suddenly crossed into the magnetosheath and observed intense earthward HSJs. The strong compression of the magnetopause current sheet forced GOES-13 to temporarily enter the magnetosheath, while SuperDARN radars registered enhanced poleward ionospheric convection and magnetometers detected signatures of westward currents. These sequential observations provide a rare, integrated demonstration of how an upstream foreshock disturbance transfers energy and momentum throughout the coupled magnetosphere-ionosphere system.
AU - Kim,H
AU - Nakamura,R
AU - Grimmich,N
AU - Settino,A
AU - Hwang,KJ
AU - Park,J
AU - V枚r枚s,Z
AU - Wedlund,CS
AU - McWilliams,KA
DO - 10.1029/2025GL117683
PY - 2025///
SN - 0094-8276
TI - Extreme Magnetopause Deformation Induced by High-Speed Jet From Foreshock Transient
T2 - Geophysical Research Letters
UR - http://dx.doi.org/10.1029/2025GL117683
VL - 52
ER -