Correlation between ground-based observations of substorm signatures and magnetotail dynamics [PDF]
Annales Geophysicae, 2005 We present a substorm event study using the four Cluster spacecraft in combination with ground-based instruments, in order to perform simultaneous observations in the ionosphere and magnetotail.
E. Borälv +12 more
doaj +1 more source
A substorm in midnight auroral precipitation [PDF]
Annales Geophysicae, 2003 DMSP F7 spacecraft observations for the whole of 1986 were used to construct the empirical model of the midnight auroral precipitation during a substorm.
V. G. Vorobjev +3 more
doaj +1 more source
Initial POLAR MFE observation of substorm signatures in the polar magnetosphere [PDF]
, 1997 This paper studies substorm influences in the polar magnetosphere using data from the POLAR magnetic field experiment (MFE). The POLAR spacecraft remains in the high altitude polar magnetosphere for extended periods around apogee.
Kawano, H. +5 more
core +2 more sources
Statistical study of high-latitude plasma flow during magnetospheric substorms [PDF]
Annales Geophysicae, 2004 We have utilised the near-global imaging capabilities of the Northern Hemisphere SuperDARN radars, to perform a statistical superposed epoch analysis of high-latitude plasma flows during magnetospheric substorms.
G. Provan +3 more
doaj +1 more source
Statistical visualization of the Earth's magnetotail and the implied mechanism of substorm triggering based on superposed-epoch analysis of THEMIS data [PDF]
Annales Geophysicae, 2014 To investigate the physical mechanism responsible for substorm triggering, we performed a superposed-epoch analysis using plasma and magnetic-field data from THEMIS probes. Substorm onset timing was determined based on auroral breakups detected by all-
S. Machida +5 more
doaj +1 more source
SABRE observations of structured ionospheric flows during substorm expansion phase onset [PDF]
Annales Geophysicae, 1994 The irregularity velocity patterns observed by the SABRE coherent radar at substorm expansion phase onset, which is identified by magnetometer observations of Pi2 pulsations, are occasionally highly structured.
E. G. Bradshaw, M. Lester, T. B. Jones
doaj +1 more source
AMPTE/CCE‐SCATHA simultaneous observations of substorm‐associated magnetic fluctuations [PDF]
, 1998 This study examines substorm-associated magnetic field fluctuations observed by the AMPTE/CCE and SCATHA satellites in the near-Earth tail. Three tail reconfiguration events are selected, one event on August 28, 1986, and two consecutive events on August
Fennell, J. F. +5 more
core +3 more sources
Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap [PDF]
Annales Geophysicae, 2017 A study is undertaken into parameters of the polar auroral and geomagnetic pulsations in the frequency range 1–4 mHz (Pc5∕Pi3) during quiet geomagnetic intervals preceding auroral substorms and non-substorm background variations.
N. Yagova +12 more
doaj +1 more source
Substorms and Solar Eclipses: A Mutual Information Based Study
Geophysical Research Letters, 2023 Solar eclipses present a rare glimpse into the impact of ionospheric electrodynamics on the magnetosphere independent of other well studied seasonal influences.
S. E. Coyle +7 more
doaj +1 more source
Organization of the magnetosphere during substorms [PDF]
, 2011 The change in degree of organization of the magnetosphere during substorms is investigated by analyzing various geomagnetic indices, as well as interplanetary magnetic field z-component and solar wind flow speed.
Abarbanel +44 more
core +2 more sources