Auroral turbulence of the ionospheric convection [PDF]
The formation of the two-dimensional auroral structures in the cold ionospheric-magnetospheric plasma under convection has been considered. The convection inhomogeneity leads to appearance of the currents across and along the magnetic field lines.
Volkov М. А.
doaj +2 more sources
On the convection of ionospheric density features [PDF]
We investigate whether the boundaries of an ionospheric region of different density than its surroundings will drift relative to the background E×B drift and, if so, how the drift depends on the degree of density enhancement and the altitude.
J. D. de Boer +2 more
doaj +4 more sources
The electric field response to the growth phase and expansion phase onset of a small isolated substorm [PDF]
International audienceWe capitalise on the very large field of view of the Halley HF radar to provide a comprehensive description of the electric field response to the substorm growth phase and expansion phase onset of a relatively simple isolated ...
Freeman, M.P. +4 more
core +27 more sources
Two-dimensional electric field measurements in the ionospheric footprint of a flux transfer event [PDF]
Line-of-sight Doppler velocities from the SuperDARN CUTLASS HF radar pair have been combined to produce the first two-dimensional vector measurements of the convection pattern throughout the ionospheric footprint of a flux transfer event (a pulsed ...
K. A. McWilliams +2 more
doaj +1 more source
Assessing the contamination of SuperDARN global convection maps by non-F-region backscatter [PDF]
Global convection mapping using line-of-sight Doppler velocity data from the Super Dual Auroral Radar Network (SuperDARN) is now an accepted method of imaging high-latitude ionospheric convection.
G. Chisham +3 more
doaj +1 more source
Interhemispheric contrasts in the ionospheric convection response to changes in the interplanetary magnetic field and substorm activity: a case-study [PDF]
Interhemispheric contrasts in the ionospheric convection response to variations of the interplanetary magnetic field (IMF) and substorm activity are examined, for an interval observed by the Polar Anglo-American Conjugate Experiment (PACE) radar ...
B. A. Shand +4 more
doaj +1 more source
Comparison of the magnetic equivalent convection direction and ionospheric convection observed by the SuperDARN radars [PDF]
SuperDARN radar and high-latitude magnetometer observations are used to statistically investigate quality of the convection direction estimates from magnetometer data if assumption is made that the magnetic equivalent convection vector (MEC ...
L. V. Benkevitch +3 more
doaj +1 more source
A numerical model of the ionospheric signatures of time-varying magneticreconnection: I. ionospheric convection [PDF]
This paper presents a numerical model for predicting the evolution of the pattern of ionospheric convection in response to general time-dependent magnetic reconnection at the dayside magnetopause and in the cross-tail current sheet of the geomagnetic ...
M. Lockwood, M. Lockwood, S. K. Morley
doaj +1 more source
Effects of mixed scatter on SuperDARN convection maps [PDF]
The SuperDARN radars map high-latitude ionospheric plasma drift velocities by measuring the Doppler frequency shift of HF signals scattered by decameter electron density irregularities.
P. V. Ponomarenko +2 more
doaj +1 more source
Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfvén waves coupling to the dayside magnetosphere [PDF]
During minor to moderate geomagnetic storms, caused by corotating interaction regions (CIRs) at the leading edge of high-speed streams (HSSs), solar wind Alfvén waves modulated the magnetic reconnection at the dayside magnetopause.
P. Prikryl +6 more
doaj +1 more source

