Abstract. We investigate if the presence of meteoric smoke particles (MSP) influences the electron temperature during artfical heating in the D-region. The presence of MSP can result in height regions with reduced electron density, so-called electron bite-outs, due to charging of MSP by electrons. Artificial heating depends on the height variation of electron density. By transferring the energy of powerful high frequency radio waves into thermal energy of electrons, artificial heating increases the electron temperature. We simulate the influence of the artificial heating by calculating the intensity of the upward propagating radio wave. The electron temperature at each height is derived from the balance of radio wave absorption and cooling through elastic and inelastic collisions with neutral species. The influence of MSP is investigated by including results from a one-dimensional height-dependent ionospheric model that includes electrons, positively and negatively charged ions, neutral MSP, singly positively and singly negatively charged MSP and photo chemistry such as photo ionization and photo detachment. We apply typical ionospheric conditions and find that MSP can influence both the magnitude and the height profile of the heated electron temperature above 80 km, however this depends on ionospheric conditions. During night, the presence of MSP leads to more efficient heating, and thus a higher electron temperature, above altitudes of 80 km. We found differences up to 1000 K in temperature for calculations with and without MSP. When MSP are present, the heated electron temperature decreases more slowly. The presence of MSP does not much affect the heating below 80 km for night conditions. For day conditions, the difference between the heated electron temperature with MSP and without MSP is less than 25 K.

中文翻译：

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大气烟雾粒子对 D 区人工加热影响的建模

摘要。我们调查了在 D 区人工加热过程中，流星烟雾颗粒 (MSP) 的存在是否会影响电子温度。由于电子对 MSP 充电，MSP 的存在可导致电子密度降低的高度区域，即所谓的电子咬出。人工加热取决于电子密度的高度变化。通过将强大的高频无线电波的能量转化为电子的热能，人工加热提高了电子温度。我们通过计算向上传播的无线电波的强度来模拟人工加热的影响。每个高度处的电子温度来自无线电波吸收和冷却的平衡，通过与中性物种的弹性和非弹性碰撞。通过包括一维高度相关电离层模型的结果来研究 MSP 的影响，该模型包括电子、带正电荷和负电荷的离子、中性 MSP、带正电荷和单个负电荷的 MSP 以及光化学，如光离和光分离。我们应用典型的电离层条件，发现 MSP 可以影响 80 公里以上加热电子温度的幅度和高度分布，但这取决于电离层条件。在夜间，MSP 的存在导致更有效的加热，因此在海拔 80 公里以上时电子温度更高。我们发现在使用和不使用 MSP 的计算中，温度差异高达 1000 K。当 MSP 存在时，加热电子温度下降得更慢。MSP 的存在对夜间条件下 80 公里以下的加热没有太大影响。对于白天条件，使用 MSP 和不使用 MSP 的加热电子温度之间的差异小于 25 K。