Japan Geoscience Union Meeting 2014

Presentation information

Print

International Session (Oral)

Symbol P (Space and Planetary Sciences) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM04_28AM2] New Perspectives on Earth's Inner Magnetosphere

Mon. Apr 28, 2014 11:00 AM - 12:40 PM 311 (3F)

Convener:*Danny Summers(Dept of Math and Stats,Memorial University of Newfoundland), Yusuke Ebihara(Research Institute for Sustainable Humanosphere, Kyoto University), Yoshizumi Miyoshi(Solar-Terrestrial Environement Laboratory, Nagoya University), Chair:Yusuke Ebihara(Research Institute for Sustainable Humanosphere, Kyoto University)

11:55 AM - 12:10 PM

[PEM04-04] Characteristics of dayside SAPS structures observed by the SuperDARN Hokkaido radar

*Nozomu NISHITANI1, Tomoaki HORI1, Hiroki NAGANO1 (1.Solar-Terrestrial Environment Laboratory, Nagoya University)

Keywords:dayside, SAPS, SuperDARN, Hokkaido radar, magnetosphere, ionosphere

Sub-Auroral Polarization Streams (SAPS) are intense westward ionospheric flows in the subauroral ionosphere, and considered to be generated as a result of magnetosphere-ionosphere coupling during relatively disturbed periods. SAPSs are usually located in the evening to midnight sector, but occasionally it extends to earlier magnetic local times close to local noon. Owing to limitation of the observation techniques, no detailed studies of its local time extent have been made so far. In this study we use the data from the SuperDARN Hokkaido radar, one of the midlatitude SuperDARN radars located at the lowest geomagnetic latitude, to discuss the detailed characteristics of dayside SAPS, with focus on their relation to solar wind and geomagnetic parameters.