學術演講‎ > ‎

2019/3/15(五)14:00綜合大樓1樓48111B教室演講 : 畢可為 博士(捷克查理大學數學與物理學院)

張貼者:2019年3月11日 下午7:04Dabby Lu   [ Ann-Chen Jang 已於 2019年3月11日 下午7:04 更新 ]
講題:Long-lasting radial IMF events and their influence of dayside magnetosphere
摘要:Long-lasting radial interplanetary magnetic field (IMF) events are one of the special solar wind conditions. These events are usually accompanied with low density, weak magnetic field strength, low temperature, and low fluctuations of each solar wind parameters; however, the unique IMF orientation can cause numerous interesting features in the dayside magnetosphere. When the radial magnetic field transits through the bow shock, the magnetic field will be enhanced in all components. After that, Bx will divert to the Y and Z components and form an asymmetric Bz polarization in the Northern and Southern Hemispheres near the magnetopause. This asymmetry will lead the dayside reconnections occur at different locations and create a complex structure of magnetopause and its boundary sublayers. These sublayers of (1) the inner part of the low-latitude boundary layer (LLBL) on closed magnetic field lines; (2) the outer LLBL on open field lines; (3) the inner part of the magnetosheath boundary layer (MSBL) formed by dayside reconnection in the Southern Hemisphere; and (4) the outer MSBL resulting from lobe reconnection in the Northern Hemisphere are identified by observation.
Ċ
Ann-Chen Jang,
2019年3月11日 下午7:04
Comments