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Spatial-temporal dynamics of auroras during the magnetic storm main phase

机译:磁暴主相期间极光的时空动态

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摘要

The structure and dynamics of auroras in the midnight sector during substorms, which develop during the magnetic storm main phase as compared to the characteristics of a typical auroral substorm, have been studied using the ground-based and satellite observations. It has been found out that a difference from the classical substorm is observed in auroras during the magnetic storm main phase. At the beginning of the storm main phase, the series of pseudobreakups with the most pronounced jump-like motion toward the equator shifts to lower latitudes. The substorm expansion phase can be observed not only as arc jumps to higher latitudes but also as an explosive expansion of a bright diffuse luminosity in all directions. During the magnetic storm main phase, auroras are mainly characterized by the presence of stable extensive rayed structures and by the simultaneous existence of different auroral forms, typical of different substorm phases, in the TV camera field of view. [PUBLICATION ABSTRACT]
机译:使用地面和卫星观测资料研究了与典型的极光亚暴的特征相比,在磁暴主阶段发展的,亚暴期间午夜区域极光的结构和动力学。已经发现在磁暴主相期间在极光中观察到与经典亚暴不同。在暴风雨主要阶段开始时,向赤道运动最为明显的类似跳跃的伪破裂序列向低纬度移动。不仅可以观察到亚暴膨胀阶段,还可以观察到电弧跃迁到更高的纬度,而且还可以观察到各个方向上明亮的扩散光度的爆炸性膨胀。在磁暴主相期间,极光的主要特征是存在稳定的广泛射线结构,并在电视摄像机视场中同时存在不同的极光形式,这是不同的亚暴相的典型特征。 [出版物摘要]

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