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本文通过两个事例分析表明,磁果期间磁层对流和沉降粒子的增强不仅对祖光区电离层扰动形态有控制作用,而且也会引起继后的中低纬及赤道电离层变化。高纬区低热层大气受热后,F层抬升和中性大气成分变化导致的电子密度正、负扰会向低纬扩展;在E层高度上,扰动发电机对赤道区喷泉效应的抑制使驼峰区扰动更为突出。这些过程均使中低纬电离层foF2和h’mF变化中出现相应材征。地面电离层垂测站链在夜间常能观测到多站几乎同时的h’mF.上升现象。这可能是二区场向电流有极大的增强,或是行星际磁场又转为北向,也可能是此两过程同时作用的结果。
In this paper, two case studies show that the magnetic convection and sedimentation particles during magnetic fruit period not only have a controlling effect on the ionospheric disturbances in the A-Zugu area, but also cause the following changes in the mid-low latitude and the equatorial ionosphere. In the high latitudes, the positive and negative electron densities caused by the uplift of F-layer and the change of neutral atmospheric composition will expand to low latitudes after the low-temperature atmosphere in the high latitudes is heated. Suppressing the fountain effect in the equatorial zone by disturbance generators will make the hump District disturbance is more prominent. All of these processes show the corresponding signatures of the foF2 and h'mF changes in the ionosphere at middle and low latitudes. Ground ionosphere vertical chain station at night can often be observed at almost simultaneous multi-station h'mF. Rise phenomenon. This may be due to the fact that the currents in the second and third zones have greatly increased or that the interplanetary magnetic field has turned northward, possibly as a result of the simultaneous application of these two processes.