A Simulation of the Mid- and Low-latitude Ionospheric Electric Fields

YU Tao; MAO Tian; XIA Chunliang; WAN Weixing

doi:10.11728/cjss2014.03.287

A Simulation of the Mid- and Low-latitude Ionospheric Electric Fields

doi: 10.11728/cjss2014.03.287

1.
National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081
2.
China University of Geosciences, Wuhan 430074
3.
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029

基金项目: Supported by National Natural Science Foundation of China(40974094, 41274159)

详细信息

通讯作者:
YU Tao,E-mail:yutao@cma.gov.cn

中图分类号: P352
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- 被引次数: 0
出版历程
- 收稿日期: 2013-09-18
- 修回日期: 2014-03-03
- 刊出日期: 2014-05-15

A Simulation of the Mid- and Low-latitude Ionospheric Electric Fields

1.
National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081
2.
China University of Geosciences, Wuhan 430074
3.
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029

More Information

Corresponding author: YU Tao,E-mail:yutao@cma.gov.cn

摘要

摘要: A theoretical model of ionospheric electric fields at mid- and low-latitudes is developed. In the geomagnetic dipolar coordinate system, the ionospheric dynamo equations were solved, and the ionospheric electric potential and electric field were derived respectively. Major parameters for the model inputs, such as the neutral winds, the densities and temperatures of electron, ions and neutrals, are obtained from empirical models. The global ionospheric electrical potential and field at mid- and low-latitudes derived from our model are largely in agreement with the results presented by other authors and the empirical model. Using our model, it is found that the diurnal component of the HWM93 wind mainly contributed to the formation of the vertical electric field, while the semidiurnal component mainly contributed to the zonal electric field. Finally, by adjustment of the input F region winds and conductivities, most discrepancies between our model and the empirical one can be eliminated, and it is proved that the F region dynamo is the most significant contribution to the electric fields.
- Ionosphere dynamo /
- Simulation /
- Tides /
- Zonal electric field evening enhancement
Abstract: A theoretical model of ionospheric electric fields at mid- and low-latitudes is developed. In the geomagnetic dipolar coordinate system, the ionospheric dynamo equations were solved, and the ionospheric electric potential and electric field were derived respectively. Major parameters for the model inputs, such as the neutral winds, the densities and temperatures of electron, ions and neutrals, are obtained from empirical models. The global ionospheric electrical potential and field at mid- and low-latitudes derived from our model are largely in agreement with the results presented by other authors and the empirical model. Using our model, it is found that the diurnal component of the HWM93 wind mainly contributed to the formation of the vertical electric field, while the semidiurnal component mainly contributed to the zonal electric field. Finally, by adjustment of the input F region winds and conductivities, most discrepancies between our model and the empirical one can be eliminated, and it is proved that the F region dynamo is the most significant contribution to the electric fields.
- Ionosphere dynamo /
- Simulation /
- Tides /
- Zonal electric field evening enhancement

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参考文献(24)

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