Volume 34 Issue 4
Jul.  2014
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Xie Haiyong, Yu Tao, Wang Tiebang, Wang Le. Modeling Study on the Coupling Effect of the Horizontal Electric Field and Winds in the Ionosphere[J]. Journal of Space Science, 2014, 34(4): 406-414. doi: 10.11728/cjss2014.04.406
Citation: Xie Haiyong, Yu Tao, Wang Tiebang, Wang Le. Modeling Study on the Coupling Effect of the Horizontal Electric Field and Winds in the Ionosphere[J]. Journal of Space Science, 2014, 34(4): 406-414. doi: 10.11728/cjss2014.04.406

Modeling Study on the Coupling Effect of the Horizontal Electric Field and Winds in the Ionosphere

doi: 10.11728/cjss2014.04.406
  • Received Date: 2013-10-29
  • Rev Recd Date: 2014-03-07
  • Publish Date: 2014-07-15
  • Based on the available ionospheric dynamo theoretical model and thermospheric winds theoretical model, a coupling scheme between horizontal electric field and winds is proposed. Considering mutual feedback, the differences with and without coupling between current function and winds were analyzed. The result shows that after mutual feedback, the morphology of wind field changes less than current function. The meridional wind has a distinct change during daytime. The change at night is smaller than that of daytime. This distinct change mainly appears in mid- and high-latitude. It increases with altitude and changes little above 300km. The zonal wind is similar to meridional wind, but the change is even smaller. While the current function has a large change with coupling. The two vortexes of Sq currents both have an enhancement. With coupling, northern hemisphere vortex increases 15kA at vernal equinox which is greater than southern hemisphere. The current function at night changes little with coupling. The result shows that within the heights considered, winds control electric field obviously greater than electric field to winds. This research will deepen the understanding of the coupling mechanism between neutral atmosphere and ionospheric plasma by the momentum and dynamo equations. It improves our knowledge of the dynamic processes in ionosphere.

     

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