Ionospheric response to the corotating interaction region-driven geomagnetic storm of October 2002 [PDF]
, 2009 Unlike the geomagnetic storms produced by coronal mass ejections (CMEs), the storms generated by corotating interaction regions (CIRs) are not manifested by dramatic enhancements of the ring current. The CIR-driven storms are however capable of producing
Jayachandran, P.T. +4 more
core +4 more sources
Magnetic field at geosynchronous orbit during high-speed stream-driven storms: Connections to the solar wind, the plasma sheet, and the outer electron radiation belt [PDF]
, 2010 Superposed-epoch analysis is performed on magnetic field measurements from five GOES spacecraft in geosynchronous orbit during 63 high-speed stream-driven storms in 1995–2005. The field strength and the field stretching angle are examined as functions of
Joseph E. Borovsky +3 more
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Polar summer mesospheric extreme horizontal drift speeds during interplanetary corotating interaction regions (CIRs) and high‐speed solar wind streams: Coupling between the solar wind and the mesosphere [PDF]
Journal of Geophysical Research: Space Physics, 2014 AbstractWe report the observation of echo extreme horizontal drift speed (EEHS, ≥ 300 m s−1) during polar mesospheric (80–90 km) summer echoes (PMSEs) by the VHF (52 MHz) radar at Esrange, Sweden, in years of 2006 and 2008. The EEHS occur in PMSEs as correlated with high‐speed solar wind streams (HSSs), observed at least once in 12–17% of all hours of ...
Young‐Sook Lee +4 more
openaire +1 more source
VARIATIONS OF FLOW DIRECTION IN SOLAR WIND STREAMS OF DIFFERENT TYPES
Solar-Terrestrial Physics, 2021 Studying the direction of the solar wind flow is a topical problem of space weather forecasting. As a rule, the quiet and uniform solar wind propagates radially, but significant changes in the solar wind flow direction can be observed, for example, in ...
A.V. Moskaleva +3 more
doaj +1 more source
Particle precipitation during ICME-driven and CIR-driven geomagnetic storms [PDF]
, 2008 Interplanetary coronal mass ejections (ICME) and corotating interaction regions (CIR) alter the parameters of the solar wind and interplanetary magnetic field (IMF) that affect conditions in the Earth's magnetosphere and particle precipitation in the ...
Honary, Farideh +2 more
core +4 more sources
Relativistic-electron dropouts and recovery: A superposed epoch study of the magnetosphere and the solar wind [PDF]
, 2009 During 124 high-speed-stream-driven storms from two solar cycles, a multispacecraft average of the 1.1–1.5 MeV electron flux measured at geosynchronous orbit is examined to study global dropouts of the flux. Solar wind and magnetospheric measurements are
Denton, Michael H., Borovsky, J. E.
core +4 more sources
Corotating interaction regions as seen by the STEREO Heliospheric Imagers 2007 – 2010 [PDF]
, 2015 T.M. Conlon and A.O. Williams were supported by an STFC, UK studentship and S.E. Milan was supported by STFC grant ST/K001000/1. Date of Acceptance: 08/08/2015NASA’s Solar Terrestrial Relations Observatory (STEREO) mission has coincided with a pronounced
J. A. Davies +11 more
core +1 more source
Empirical Forecast of Corotating Interacting Regions and Geomagnetic Storms Based on Coronal Hole Information [PDF]
Journal of Astronomy and Space Sciences, 2009 In this study, we suggest an empirical forecast of CIR (Corotating Interaction Regions) and geomagnetic storm based on the information of coronal holes (CH). For this we used CH data obtained from He I 10830 Å maps at National Solar Observatory-Kitt Peak
Ji-Hye Lee +3 more
doaj +1 more source
Interplanetary Shocks between 0.3 and 1.0 au: Helios 1 and 2 Observations
The Astrophysical Journal, 2023 The Helios 1 (H1) and Helios 2 (H2) spacecraft measured the solar winds at a distance between ∼0.3 and 1.0 au from the Sun. With increasing heliocentric distance ( r _h ), the plasma speed is found to increase at ∼34–40 km s ^−1 au ^−1 and the density ...
Rajkumar Hajra +5 more
doaj +1 more source
The Astrophysical Journal, 2023 The effect of the turbulence that is associated with solar wind corotating interaction regions (CIRs) on transport of galactic cosmic rays remains an outstanding problem in space science.
Keyvan Ghanbari, Vladimir Florinski
doaj +1 more source