Results 11 to 20 of about 9,187 (202)

Validation of the stream function method used for reconstruction of experimental ionospheric convection patterns [PDF]

Annales Geophysicae, 2000
In this study we test a stream function method suggested by Israelevich and Ershkovich for instantaneous reconstruction of global, high-latitude ionospheric convection patterns from a limited set of experimental observations, namely, from the electric
P. L. Israelevich, P. L. Israelevich, P. L. Israelevich, V. O. Papitashvili, V. O. Papitashvili, V. O. Papitashvili, A. I. Ershkovich, A. I. Ershkovich, A. I. Ershkovich   +8 more
doaj   +1 more source

Ionospheric convection during the magnetic storm of 20-21 March 1990 [PDF]

Annales Geophysicae, 1994
We report on the response of high-latitude ionospheric convection during the magnetic storm of March 20-21 1990. IMP-8 measurements of solar wind plasma and interplanetary magnetic field (IMF), ionospheric convection flow measurements from the Wick ...
J. R. Taylor, T. K. Yeoman, M. Lester, M. J. Buonsanto, J. L. Scali, J. M. Ruohoniemi, J. D. Kelly   +6 more
doaj   +1 more source

Response of the convecting high-latitude F layer to a powerful HF wave [PDF]

Annales Geophysicae, 1997
A numerical model of the high-latitude ionosphere, which takes into account the convection of the ionospheric plasma, has been developed and utilized to simulate the F-layer response at auroral latitudes to high-power radio waves.
G. I. Mingaleva, V. S. Mingalev
doaj   +1 more source

Ionospheric control of space weather [PDF]

Annales Geophysicae, 2021
As proposed by Saka (2019), plasma injections arising out of the auroral ionosphere (ionospheric injection) are a characteristic process of the polar ionosphere at substorm onset.
O. Saka
doaj   +1 more source

Ionospheric convection and equivalent ionospheric currents in the dayside high‐latitude winter ionosphere [PDF]

Journal of Geophysical Research: Space Physics, 1999
Ionospheric convection inferred from Super Dual Auroral Radar Network (SuperDARN) HF radar measurements is compared with an equivalent ionospheric convection derived from ground magnetometer data in the dayside winter high‐latitude ionosphere. Although there was general agreement between observed convection patterns produced by radars and magnetometers,
W. B. Lyatsky, A. V. Kustov, G. J. Sofko, B. Jacobsen, D. André, L. L. Cogger   +5 more
openaire   +1 more source

Can the ionosphere regulate magnetospheric convection? [PDF]

Journal of Geophysical Research, 1973
Following a southward shift of the interplanetary magnetic field, which implies enhanced reconnection at the nose of the magnetosphere, the magnetopause shrinks from its Chapman-Ferraro equilibrium position. If the convective return of magnetic flux to the magnetopause equalled the reconnection rate, the magnetopause would not shrink.
F. V. Coroniti, C. F. Kennel
openaire   +1 more source

Multi‐Scale Ionospheric Poynting Fluxes Using Ground and Space‐Based Observations

Geophysical Research Letters, 2023
Three events are presented where high‐resolution measurements from the Swarm satellites coincided with excellent F‐region ionospheric coverage from The Super Dual Auroral Radar Network (SuperDARN).
D. D. Billett, K. A. McWilliams, P. V. Ponomarenko, C. J. Martin, D. J. Knudsen, S. K. Vines   +5 more
doaj   +1 more source

The ionospheric signature of transient dayside reconnection and the associated pulsed convection return flow [PDF]

Annales Geophysicae, 1999
Three SuperDARN coherent HF radars are employed to investigate the excitation of convection in the dayside high-latitude ionosphere in response to transient reconnection occurring in the cusp region. This study demonstrates the existence of transient
S. E. Milan, M. Lester, R. A. Greenwald, G. Sofko   +3 more
doaj   +1 more source

Response of convection electric fields in the magnetosphere to IMF orientation change [PDF]

, 2009
[1] The transient response of convection electric fields in the inner magnetosphere to southward turning of the interplanetary magnetic field (IMF) is investigated using in‐situ electric field observations by the CRRES and Akebono spacecraft.
Brautigam, D., Kikuchi, T., Matsuoka, A., Nagatsuma, T., Nishimura, Y., Ono, T., Shinbori, A., Wygant, J.   +7 more
core   +1 more source

Dayside convection and auroral morphology during an interval of northward interplanetary magnetic field [PDF]

Annales Geophysicae, 2000
We investigate the dayside auroral dynamics and ionospheric convection during an interval when the interplanetary magnetic field (IMF) had predominantly a positive Bz component (northward IMF) but varying By.
S. E. Milan, S. E. Milan, S. E. Milan, M. Lester, M. Lester, S. W. H. Cowley, S. W. H. Cowley, M. Brittnacher, M. Brittnacher   +8 more
doaj   +1 more source