地球等离子体模式及遥感成像技术

Models of the Earth's plasmasphere and its remote sensing technique

地球等离子体层的分布主要受到地球磁层的特性影响。早期对地球磁层的研究,主要是通过采集地磁平静期的观测数据,建立半经验模型和经验模型来研究。随着成像技术的发展,可以通过遥感成像的方式,在全球尺度下获得磁扰期、平静期等不同时刻的地球等离子层分布信息,从而更直观、全面地了解磁层磁场的变化。本文研究了现有的地球等离子体层模型,详细阐述了不同地球等离子层模型的描述形式、应用特性,以及地球等离子体层遥感成像观测的方法和手段。最后,通过计算机模拟了在经验地球等离子层模型输入情况下,极轨道卫星对地球等离子体层分布的成像结果。

The ions distribution of the Earth＇s plasmasphere is mainly affected by the feature of the Earth＇s magnetosphere. In early studies, its empirical models or semi-empirical models were only based on the data from in situ observation, and used to observe over the quiet period of the Earth＇s magnetosphere. With the advances in the remote sensing technique, it pro roach for imaging the Earth＇s plasmasphere on a truly globalscale, and calculate its detailed information during the nedc disturbance period or the geomagnetic quiet period. In this paper, we studied the several populated models of the msphere, elaborated their difference in description forms and application range, then gave the method of simulation vxtrcme ultraviolet （EUV） sensing technology. In the final, the simulation result of EUV images was given from of the satellite orbit.