Recent advances in global electric circuit coupling between the space environment and the troposphere

MJ Rycroft, KA Nicoll, KL Aplin, RG Harrison - Journal of Atmospheric and …, 2012 - Elsevier
The global atmospheric electric circuit is driven by thunderstorms and electrified rain/shower
clouds and is also influenced by energetic charged particles from space. The global circuit …

Penetration of magnetospheric electric fields to the equator during a geomagnetic storm

T Kikuchi, KK Hashimoto… - Journal of Geophysical …, 2008 - Wiley Online Library
Penetration of the magnetospheric electric field to the equatorial ionosphere was examined
for the geomagnetic storm on 6 November 2001, by analyzing the difference in magnitude of …

Equatorial counterelectrojets during substorms

T Kikuchi, KK Hashimoto, TI Kitamura… - Journal of …, 2003 - Wiley Online Library
Equatorial counterelectrojet (CEJ) events are analyzed in association with changes in the
interplanetary magnetic field (IMF), polar cap potential (PCP), and electric field measured in …

Counter equatorial electrojet and overshielding after substorm onset: Global MHD simulation study

Y Ebihara, T Tanaka, T Kikuchi - Journal of Geophysical …, 2014 - Wiley Online Library
By performing a global magnetohydrodynamic (MHD) simulation, we have demonstrated for
the first time that an electrojet at the dayside magnetic equator can be reversed and an …

Penetration of the convection and overshielding electric fields to the equatorial ionosphere during a quasiperiodic DP 2 geomagnetic fluctuation event

T Kikuchi, Y Ebihara, KK Hashimoto… - Journal of …, 2010 - Wiley Online Library
The convection electric field penetrates to the equatorial ionosphere with no significant
shielding during DP 2 fluctuation events with periods of 30–60 min (Nishida, 1968) and even …

Low‐latitude ionospheric‐thermospheric response to storm time electrodynamical coupling between high and low latitudes

MS Bagiya, KN Iyer, HP Joshi… - Journal of …, 2011 - Wiley Online Library
Using multi‐instrumental and multistation data, we present low‐latitude ionospheric‐
thermospheric behavior during the geomagnetic storm of 15 May 2005. The diurnal pattern …

Local time variations of the equatorial electrojet in simultaneous response to subauroral polarization streams during quiet time

K Zhang, H Wang, W Wang - Geophysical Research Letters, 2022 - Wiley Online Library
Based on 1‐year equatorial electrojet (EEJ) measurements from Swarm, and ion velocity
from the Defense Meteorological Satellite Program, this study first examines the …

Including gap region field‐aligned currents and magnetospheric currents in the MHD calculation of ground‐based magnetic field perturbations

Y Yu, AJ Ridley, DT Welling… - Journal of Geophysical …, 2010 - Wiley Online Library
Many high‐latitude modeling studies utilize the horizontal ionospheric Hall current in
calculating ground‐based magnetic perturbations, but low‐latitude and midlatitude studies …

Comparison of storm time equatorial ionospheric electrodynamics in the African and American sectors

E Yizengaw, MB Moldwin, A Mebrahtu, B Damtie… - Journal of Atmospheric …, 2011 - Elsevier
The characteristics of storm time (corotating interaction regions (CIR)-driven storm that
happened on 9 August 2008) equatorial electrojet (EEJ) phenomena and their effect on the …

Electrodynamic coupling of high and low latitudes: Observations on May 27, 1993

AT Kobea, AD Richmond, BA Emery… - Journal of …, 2000 - Wiley Online Library
The penetration of disturbance electric fields from the polar region to the magnetic equator
on the dayside of the Earth is examined with geomagnetic data on May 27, 1993. First, we …