Study of the equatorial and low-latitude total electron content response to plasma bubbles during solar cycle 24–25 over the Brazilian region using a Disturbance Ionosphere indeX [PDF]
Annales Geophysicae, 2022 This work uses the Disturbance Ionosphere indeX (DIX) to evaluate the ionospheric responses to equatorial plasma bubble (EPB) events from 2013 to 2020 over the Brazilian equatorial and low latitudes.
G. A. S. Picanço +8 more
doaj +1 more source
EISCAT Svalbard radar observations of ionospheric signatures of magnetopause reconnection during a changing IMF Bz polarity [PDF]
Annales Geophysicae, 2002 Observations by the EISCAT Svalbard radar are presented that show the response of the spatial structure of the ionosphere in the dayside cusp region to a rotational trend in the IMF clock angle.
S. E. Pryse +5 more
doaj +1 more source
Investigation of the response time of the equatorial ionosphere in context of the equatorial electrojet and equatorial ionization anomaly [PDF]
Annales Geophysicae, 2011 Equatorial Electrojet (EEJ) and Equatorial Ionization Anomaly (EIA) are two large-scale processes in the equatorial/low latitude ionosphere, driven primarily by the eastward electric field during daytime.
L. Jose +4 more
doaj +1 more source
Azimuthal magnetic fields in saturn's magnetosphere: Effects associated with plasma sub-corotation and the magnetopause-tail current system [PDF]
, 2003 We calculate the azimuthal magnetic fields expected to be present in Saturn’s magnetosphere associated with two physical effects, and compare them with the fields observed during the flybys of the two Voyager spacecraft.
Cowley, S. W. H. +2 more
core +6 more sources
Vertical E × B drift velocity variations and associated low-latitude ionospheric irregularities investigated with the TOPEX and GPS satellite data [PDF]
Annales Geophysicae, 2003 With a well-selected data set, the various events of the vertical E × B drift velocity variations at magnetic-equator-latitudes, the resultant ionospheric features at low-and mid-latitudes, and the practical consequences of these E × B events on ...
I. Horvath, E. A. Essex
doaj +1 more source
Satellite observations of the equatorial ionosphere [PDF]
Journal of Geophysical Research, 1962 Total ionospheric electron density at magnetic equator from observations of faraday effect on satellite ...
openaire +1 more source
He+ dominance in the plasmasphere during geomagnetically disturbed periods: 1. Observational results [PDF]
, 2002 Observations made by the DMSP 1710 satellite during the recovery phase from geomagnetic disturbances in June 1991 show regions of He+ dominance around 830 km altitude at 09:00 MLT.
Wilford, C. R. +13 more
core +2 more sources
The Morphology of Equatorial Plasma Bubbles – a review [PDF]
Journal of Astronomy and Space Sciences, 2015 Plasma bubbles that occur in the equatorial F-region make up one of the most distinguishing phenomena in the ionosphere. Bubbles represent plasma depletions with respect to the background ionosphere, and are the major source of electron density ...
Hyosub Kil
doaj +1 more source
Periodic structures in the equatorial ionosphere [PDF]
Radio Science, 2011 The plasma densities detected by the Planar Langmuir Probe (PLP) on board the Communication/Navigation Outage Forecasting System (C/NOFS) satellite have been analyzed for the June 2008 period. This interval, which corresponds to one of the quietest periods in the space era, exhibited broad plasma decreases (BPDs) which we have reported previously.
Huang, C. +3 more
openaire +3 more sources
Letter to the editor: Electric field fluctuations (25-35 min) in the midnight dip equatorial ionosphere [PDF]
Annales Geophysicae, 2000 Measurements with a HF Doppler sounder at Kodaikanal (10.2°N, 77.5°E, geomagnetic latitude 0.8°N) showed conspicuous quasi-periodic fluctuations (period 25-35 min) in F region vertical plasma drift, Vz in the interval 0047-0210 IST on the night of 23 ...
J. Hanumath Sastri +14 more
doaj +1 more source