Equatorial electrojet in the East Brazil anomaly region

被引：0
|
作者：
R. G. Rastogi
K. Yumoto
机构：
[1] Physical Research Laboratory,Department of Earth and Planetary Sciences
[2] Kyushu University,undefined
来源：
Earth, Planets and Space | 2007年 / 59卷
关键词：
Equatorial electrojet currents; longitudinal variation; meridional equatorial ionospheric current;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An examination of the geomagnetic field variations at equatorial stations in South America has shown that the daily range of the northward field, H, is about 30% larger in Peru than in Brazil. The midday H field vector in Brazil shows a large westward tilt, corresponding to large westward declination at the station. A significant meridional trans-equatorial current system is suggested for the observed anomaly. The longitudinal variation in the equatorial electrojet current strength is suggested to be due to the corresponding variation in the ionospheric electric field rather than to the electrical conductivity.
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页码：103 / 106
页数：3
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