scholarly journals Response of ionospheric electric fields at mid‐low latitudes during sudden commencements

2015 ◽  
Vol 120 (6) ◽  
pp. 4849-4862 ◽  
Author(s):  
N. Takahashi ◽  
Y. Kasaba ◽  
A. Shinbori ◽  
Y. Nishimura ◽  
T. Kikuchi ◽  
...  
Keyword(s):  
Electric Fields ◽  
Ionospheric Electric Fields ◽  
Low Latitudes ◽  
Sudden Commencements

scholarly journals Downward mapping of quasi-static ionospheric electric fields at low latitudes during fair weather

1992 ◽  
Vol 54 (3-4) ◽  
pp. 223-230
Author(s):  
S.L.G. Dutra ◽  
A.L.C. Gonzalez ◽  
W.D. Gonzalez ◽  
A.E.C. Pereira
Keyword(s):  
Electric Fields ◽  
Fair Weather ◽  
Ionospheric Electric Fields ◽  
Low Latitudes

An empirical model of quiet-day ionospheric electric fields at middle and low latitudes

1980 ◽  
Vol 85 (A9) ◽  
pp. 4658-4664 ◽  
Author(s):  
A. D. Richmond ◽  
M. Blanc ◽  
B. A. Emery ◽  
R. H. Wand ◽  
B. G. Fejer ◽  
...  
Keyword(s):  
Electric Fields ◽  
Empirical Model ◽  
Ionospheric Electric Fields ◽  
Low Latitudes ◽  
Quiet Day

scholarly journals Energetic electron enhancements under the radiation belt (<i>L</i> < 1.2) during a non-storm interval on 1 August 2008

2019 ◽  
Vol 37 (6) ◽  
pp. 1223-1241 ◽  
Author(s):  
Alla V. Suvorova ◽  
Alexei V. Dmitriev ◽  
Vladimir A. Parkhomov
Keyword(s):  
Electric Fields ◽  
Radiation Belt ◽  
Energetic Electron ◽  
Plasma Pressure ◽  
Plasma Jets ◽  
Unusual Event ◽  
Hot Plasma ◽  
Low Latitudes ◽  
Pressure Pulses ◽  
Dawn Sector

Abstract. An unusual event of deep injections of >30 keV electrons from the radiation belt to low L shells (L<1.2) in the midnight–dawn sector was found from NOAA/POES observations during quiet geomagnetic conditions on 1 August 2008. Using THEMIS observations in front of the bow shock, we found transient foreshock conditions and interplanetary magnetic field (IMF) discontinuities passing the subsolar region at that time. These conditions resulted in generation of plasma pressure pulses and fast plasma jets observed by THEMIS, respectively, in the foreshock and magnetosheath. Signatures of interactions of pressure pulses and jets with the magnetopause were found in THEMIS and GOES measurements in the dayside magnetosphere and ground magnetogram records from INTERMAGNET. The jets produce penetration of hot magnetosheath plasma into the dayside magnetosphere, as was observed by the THEMIS probes after approaching the magnetopause. High-latitude precipitations of the hot plasma were observed by NOAA/POES satellites on the dayside. The precipitations preceded the >30 keV electron injections at low latitudes. We propose a scenario of possible association between the phenomena observed. However, the scenario cannot be firmly supported because of the lack of experimental data on electric fields at the heights of electron injections. This should be a subject of future experiments.

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