Electric field measurements in the inner magnetosphere by Cluster EDI
Electric field measurements in the inner magnetosphere by Cluster EDI
复制标题
通过 Cluster EDI 测量内磁层电场
DOI：
10.1029/2003ja009913
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发表时间：
2003
影响因子：
--
通讯作者：
G. Paschmann
中科院分区：
文献类型：
--
作者：
H. Matsui;J. Quinn;R. Torbert;V. Jordanova;Wolfgang Baumjohann;P. Puhl;G. Paschmann
[1] We report electric field measurements in the inner magnetosphere from the Electron Drift Instrument (EDI) on Cluster at distances of 4 0) and 2.45 (BZ < 0). These electric fields are discussed in terms of their sources such as the ionospheric dynamo and the solar wind-magnetosphere interaction. We also quantify the electric field as follows: the average shielding parameter γ [Volland, 1973; Stern, 1975] is ∼2, although the value for southward IMF is smaller than the value for northward IMF. The parameter γ is larger on the duskside than in the dawn sector. The average rate of sunward transport of magnetic flux, equivalent to the duskward electric field, is estimated as 0.32 mV/m for southward IMF. Finally, fluctuations tend to be larger than the DC component around the stagnation point, which could lead to outflow of plasmaspheric material.
