Statistical study on electron cyclotron harmonic waves observed in the dayside magnetosphere

被引：2
|
作者：
Usui, H
Koizumi, J
Matsumoto, H
机构：
[1] Radio Atmospheric Science Center, Kyoto University, Gokasyo, Uji
来源：
RESULTS OF THE IASTP PROGRAM | 1997年 / 20卷 / 4-5期
关键词：
D O I：
10.1016/S0273-1177(97)00520-6
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Dynamic spectra obtained with the Plasma Wave Instrument (PWI) onboard the GEOTAIL spacecraft show a variety of electron cyclotron harmonic (ECH) waves in the dayside equatorial magnetosphere. To see the spatial distribution of these ECH waves in terms of field intensity, we statistically analyzed the wave data obtained in a period from September 18, 1992 to April 10, 1995. It is found that intense waves (greater than or equal to -130 dBV/m/Hz(1/2)) mainly occur at the dawnside region near the magnetopause, while weak diffuse ECH waves broadly appear along the dayside magnetopause. (C) 1997 COSPAR. Published by Elsevier Science Ltd.
引用
收藏
页码：857 / 860
页数：4
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