On the electrojet in South America [PDF]
, 2022 The diurnal variation in the horizontal component (H) of south american stations under and close to the electrojet were plotted during the IGY. Thus a dilatation towards the south of the electrojet in the western part of South America was inferred ...
Affolter, Hugo Roberto
core
Electrodynamical response of the Indian low-mid latitude ionosphere to the very large solar flare of 28 October 2003 – a case study [PDF]
Annales Geophysicae, 2009 The electrodynamic effects on the low-mid latitude ionospheric region have been investigated using GPS (global positioning system) data, ionosonde data and ΔH values, during the very large solar flare (X17.2/4B) of 28 October 2003.
G. Manju +4 more
doaj +1 more source
Numerical modeling of the equatorial electrojet UT-variation on the basis of the model GSM TIP [PDF]
Advances in Radio Science, 2007 In the presented work the results of numerical modeling of the UT-variation of the equatorial electrojet, executed on the basis of the model GSM TIP are presented, taking into account the dynamo electric fields generated by thermospheric winds in a ...
M. V. Klimenko +2 more
doaj
Morphological aspects of a new type of counter electrojet event [PDF]
Annales Geophysicae, 1999 The study describes the time and space morphologies of a rather new type of counter electrojet event on the basis of data from the excellent chain of magnetic and ionospheric observatories along the Indo-Russian longitude sector.
R. G. Rastogi
doaj +1 more source
Neural networks technique for detecting current systems while main phase of geomagnetic storm [PDF]
E3S Web of Conferences, 2020 The study demonstrated the technology for searching nonlinear correlations between the intensity indices of auroral electric jets (AU, AL) and ring current intensity indices (SYM, ASY).
Barkhatov N. A. +4 more
doaj +1 more source
Counter electrojet features in the Brazilian sector: simultaneous observation by radar, digital sounder and magnetometers [PDF]
Annales Geophysicae, 2009 In the present work we show new results regarding equatorial counter electrojet (CEJ) events in the Brazilian sector, based on the RESCO radar, two set of fluxgate magnetometer systems and a digital sounder.
C. M. Denardini +7 more
doaj +1 more source
Dayside and nightside contributions to cross-polar cap potential variations: the 20 March 2001 ICME case [PDF]
Annales Geophysicae, 2011 We investigate the association between temporal-spatial structure of polar cap convection and auroral electrojet intensifications during a 5-h-long interval of strong forcing of the magnetosphere by an ICME/Magnetic cloud on 20 March 2001. We use data
Y. L. Andalsvik +2 more
doaj +1 more source
Auroral electrojet dynamics during magnetic storms, connection with plasma precipitation and large-scale structure of the magnetospheric magnetic field [PDF]
Annales Geophysicae, 1999 Effect of the equatorward shift of the eastward and westward electrojets during magnetic storms main phase is analyzed based on the meridional chains of magnetic observatories EISCAT and IMAGE and several Russian observatories (geomagnetic longitude ...
Y. I. Feldstein +6 more
doaj +1 more source
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract Geomagnetic disturbances in polar regions can be decomposed into two main patterns: the Disturbance Polar (DP) 1 and 2. How their relative contribution reshapes global current system remains unclear. In this study, we classified substorms from 2010 to 2022 into weak and strong DP‐2 events based on the ratio of the eastward to westward auroral ...
Jiarong Ma +5 more
wiley +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.Abstract Capturing global ionospheric response during extreme geomagnetic storms remains a major observational challenge. During 10–11 May, 2024 superstorm, we investigate the height‐dependent response of the F‐region using multi‐constellation GNSS‐POD limb‐sounding measurements from COSMIC‐2, Spire, PlanetiQ, and FengYun‐3 satellites. Approximately 12,
Nimalan Swarnalingam +3 more
wiley +1 more source