EMIC waves observed at geosynchronous orbit during quiet geomagnetic conditions
Thursday, 4 September 2014
Regency Ballroom (Hyatt Regency)
Jong-sun Park1, Khan-Hyuk Kim1, Dong-Hun Lee2, Ensang Lee3 and Ho Jin3, (1)Kyung Hee University, Yongin, South Korea, (2)Kyung Hee Univ, Gyeonggi, South Korea, (3)Kyung Hee University, School of Space Research, Yongin, South Korea
Abstract:
It is generally accepted that electromagnetic ion cyclotron (EMIC) waves can be generated under the conditions of anisotropic and energetic ion population. Such conditions are expected when the magnetospheric convection is enhanced or when the magnetosphere is compressed by strong solar wind dynamic pressure enhancement. Even in the absence of strong magnetospheric convection or strong solar wind dynamic pressure enhancements, we have observed EMIC waves at geosynchronous orbit. In this study we focus on the geosynchronous EMIC waves excited during very quiet geomagnetic conditions (Kp ⤠1). We examine the relationship between EMIC wave enhancements and solar wind conditions.
