HR: 11:20h
AN: SM22A-05    [Abstracts]
TI: A Statistical Study of Plasma Properties in the Near-Earth Magnetotail
AU: * Lee, K
EM: kieslow@khu.ac.kr
AF: Dept. of Astronomy & Space Science, Kyung Hee University, Giheong, Yongin, 449-701 Korea, Republic of
AU: Kim, K
EM: Khan@kasi.re.kr
AF: Korea Astronomy and Space Science Institute, Yusong, Daejeon, 305-348 Korea, Republic of
AU: Lee, D
EM: dhlee@khu.ac.kr
AF: Dept. of Astronomy & Space Science, Kyung Hee University, Giheong, Yongin, 449-701 Korea, Republic of
AU: Mukai, T
EM: mukai@stp.isas.jaxa.jp
AF: Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamihara, Kanagawa, 229-8510 Japan
AU: Nagai, T
EM: nagai@geo.titech.ac.jp
AF: Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551 Japan
AU: Takahashi, K
EM: kazue.takahashi@jhuapl.edu
AF: Johns Hopkns University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD 20723-6099 United States
AB: The near-earth magnetotail is an important region in magnetospheric dynamics. However, there have been few observational studies on the global structure of plasma density, temperature and magnetic fields in the magnetotail. We present a statistical study of these physical parameters by using the data acquired from the GEOTAIL spacecraft during 7 year period of 1995-2001. The distribution map of plasma density, temperature, magnetic field and Alfven speed is examined over the region of|X_GSM|=10~50 R_e and|Y_GSM| < 10R_e. In this statistical approach, we also show how geomagnetic activities and solar wind conditions such as Kp and IMF affect the global structure of the magnetotail.
DE: 2744 Magnetotail
DE: 2764 Plasma sheet
SC: SPA-Magnetospheric Physics [SM]
MN: Fall Meeting 2005