地球大气中间层顶处尘埃粒子动力学

The special charging status, moving, and space distribution of the dusty particles embedded in the space plasma are analyzed. The low-frequency waves and instability in the planetary rings, the shock waves in a dusty plasma, and electron density fluctuation in a space dusty plasma have been studied. The results are applied to mesopause of the Earth to study the phenomena of Polar Mesosphere Summer Radar Echoes (PMSRE) and Polar Mesosphere Cloud (PMC).

研究中间层顶处等离子体中的尘埃离子带电性质；研究带电的尘埃粒子在静电力、重力、离子拖拽力、中性分子碰撞力及波的作用下的运动；研究这种运动产生的尘埃粒子空间分布以及这种分布对夜光云、极区夏季中层顶雷达回波等现象的影响。研究结果对了解中间层顶处的大气动力学过程有重要意义，并在电磁波地球大气传播中有实际应用。