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采用天宫一号轨道大气环境探测器的在轨探测数据,分析了2012年3月和10月地磁扰动期间的热层大气成分数据,对磁暴期间N2异常增变的涨幅、时间、空间特性,低纬地区N2异常增变特点,以及冬夏半球N2异常增变的差异进行探讨,探讨认为:N2数密度的异常增变与地磁扰动及其扰动程度密切相关,增变现象通常出现在夏半球高纬区域上空,磁扰期间所出现的N2数密度异常增变现象与地磁扰动对热层大气加热机理紧密相关.
Based on the in-orbit detection data of Tiangong-1 orbit atmospheric environment detector, the thermal layer atmospheric composition data during the geomagnetic disturbance in March and October 2012 are analyzed. The increase, time and space characteristics of N2 anomaly during the magnetic storm are also analyzed. The variation of N2 anomaly in latitude area and the difference of N2 anomaly in winter and summer hemisphere are discussed. It is concluded that the anomalous increase of N2 density is closely related to the geomagnetic perturbation and its perturbation, and the increasing phenomenon usually appears in high latitude The phenomenon of abnormal increase of N2 density occurred during the magnetic disturbance is closely related to the geomagnetic disturbance on the heating mechanism of atmosphere in the hot zone.