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Chinese Science Bulletin

, Volume 57, Issue31, pp 40364042

First Online: 05 September 2012Received: 20 January 2012Accepted: 23 April 2012DOI: 10.1007-s11434-012-5408-4

Cite this article as: Fang, H., Wang, S.
& Sheng, Z.
Chin.
Sci.
Bull.
2012 57: 4036.
doi:10.1007-s11434-012-5408-4

Abstract

To predict and evaluate the effects of ionospheric modification quantitatively, the electron temperature and density perturbations are analyzed at different heating conditions, based on a developed model including momentum equation, continuity equation and energy equation.
The results show that 1 powerful HF radio waves can cause the electron temperature to increase markedly, and the largest perturbation is near the reflection layer, but the electron density decreases at this area; 2 the lower neutral gas density in the ionosphere, the larger disturbance of the electron temperature and density; the higher radio frequency, the lower increment of electron temperature; and the higher radio power, the larger disturbance of electron temperature and density are caused, but there are no linear relationships between the radio power and disturbance amplitude; 3 the perturbations at nighttime are larger than at daytime when heated by HF radio waves with the same powers; the electron temperature perturbations in the solar minimum are larger than that in solar maximum; and the electron temperature perturbations in spring and autumn are larger than in winter and summer; 4 compared with the low-latitude, the mid-latitude has the smaller perturbations, the maximum electron temperature perturbation is 30% at daytime of winter, and the density is 5%.

Keywordspowerful HF wavesionospheric heatingsimulationThis article is published with open access at Springerlink.com

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Autor: HanXianFang - SiChengWang - ZhengSheng

Fuente: https://link.springer.com/



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