Statistical Dependence of EMIC Wave Scattering on Wave and Plasma Parameters

2020 ◽  
Vol 125 (4) ◽  
Author(s):  
Murong Qin ◽  
Mary Hudson ◽  
Robyn Millan ◽  
Leslie Woodger ◽  
Xiaochen Shen
Keyword(s):  
Wave Scattering ◽  
Statistical Dependence ◽  
Plasma Parameters ◽  
Emic Wave

scholarly journals Direct evidence for EMIC wave scattering of relativistic electrons in space

2016 ◽  
Vol 121 (7) ◽  
pp. 6620-6631 ◽  
Author(s):  
X.-J. Zhang ◽  
W. Li ◽  
Q. Ma ◽  
R. M. Thorne ◽  
V. Angelopoulos ◽  
...  
Keyword(s):  
Wave Scattering ◽  
Direct Evidence ◽  
Relativistic Electrons ◽  
Emic Wave

scholarly journals Loss of geosynchronous relativistic electrons by EMIC wave scattering under quiet geomagnetic conditions

2014 ◽  
Vol 119 (10) ◽  
pp. 8357-8371 ◽  
Author(s):  
K. Hyun ◽  
K.-H. Kim ◽  
E. Lee ◽  
H.-J. Kwon ◽  
D.-H. Lee ◽  
...  
Keyword(s):  
Wave Scattering ◽  
Relativistic Electrons ◽  
Emic Wave

Ion injection triggered EMIC wave activity and its association with enhanced convection periods

2020 ◽  
Author(s):  
Remya Bhanu ◽  
David Sibeck ◽  
Mike Ruohoniemi ◽  
Bharat Kunduri ◽  
Alexa Halford ◽  
...  
Keyword(s):  
Electric Fields ◽  
Geomagnetic Storms ◽  
Wave Activity ◽  
Wind Pressure ◽  
Local Times ◽  
Plasma Parameters ◽  
Wave Growth ◽  
Emic Wave ◽  
Night Side ◽  
Emic Waves

<p>Electromagnetic ion cyclotron (EMIC) waves are found to be most prevalent during geomagnetic storms and solar wind pressure pulses which provide the necessary free energy for the wave growth. However, they have also been regularly observed
in the absence of these two drivers. These non-storm time and non-pressure pulse EMIC events are very well associated with individual night side injections during substorms. However, not all substorm injections elicit wave activity. Our study aims to determine which substorm trigger wave activity. EMIC events excited during substorm injections are examined and various plasma parameters that are responsible for wave growth are studied. We find that injections that are associated with EMIC waves are also associated with enhanced high latitude ionospheric convection, which are manifestations of strong magnetospheric electric fields. The convective signatures occur at local times similar to those of the observed wave activity.</p>

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