Measurements of convection electric field in the inner magnetosphere

被引:0
作者
Xin Lv
WenLong Liu
机构
[1] Beihang University,School of Space and Environment
来源
Science China Technological Sciences | 2018年 / 61卷
关键词
convection; electric field; inner magnetosphere;
D O I
暂无
中图分类号
学科分类号
摘要
In this paper, we study the characteristic of large-scale convection electric field in the inner magnetosphere, using magnetospheric multiscale (MMS) observations between L=5 and L=8 over the period from September 1, 2015 to October 31, 2016, covering almost all magnetic local time (MLT). Observations show that the DC convection electric field generally has small variations in this region. We investigate whether the convection electric field is correlated with geomagnetic indices and solar wind parameters. It is found that, among the studied parameters, solar wind electric field, z component of interplanetary magnetic field, AE and Kp indices show good correlations with the averaged convection electric field. The results in this paper provide valuable information for understanding the role of electric field on the dynamics of the inner magnetosphere.
引用
收藏
页码:1866 / 1871
页数:5
相关论文
共 100 条
[1]  
Fu H S(2010)The nightside-to-dayside evolution of the inner magnetosphere: Imager for Magnetopause-to-Aurora Global Exploration Radio Plasma Imager observations J Geophys Res 115 A04213-4543
[2]  
Tu J(2015)Van Allen Probes investigation of the large-scale duskward electric field and its role in ring current formation and plasmasphere erosion in the 1 June 2013 storm J Geophys Res Space Phys 120 4531-556
[3]  
Song P(2015)Dynamic plasmapause model based on THEMIS measurements J Geophys Res Space Phys 120 543-2557
[4]  
Thaller S A(2014)A new plasmapause location model based on THEMIS observations Sci China Earth Sci 57 2552-1030
[5]  
Wygant J R(2016)On the calculation of electric diffusion coefficient of radiation belt electrons with in situ electric field measurements by THEMIS Geophys Res Lett 43 1023-298
[6]  
Dai L(2011)The statistical studies of the inner boundary of plasma sheet Ann Geophys 29 289-9951
[7]  
Liu X(2011)Electron loss and acceleration during storm time: The contribution of wave-particle interaction, radial diffusion, and transport processes J Geophys Res 116 A10210-19607
[8]  
Liu W(2014)THEMIS measurements of quasi-static electric fields in the inner magnetosphere J Geophys Res Space Phys 119 9939-1199
[9]  
Cao J B(1995)Models of high-latitude electric potentials derived with a least error fit of spherical harmonic coefficients J Geophys Res 100 19595-3599
[10]  
Liu X(2015)Preliminary empirical model of inner boundary of ion plasma sheet Adv Space Res 56 1194-199