极区电离层强烈地受到极区对流电场、极光粒子沉降和场向电流等的影响。
The polar ionosphere is strongly influenced by convection electric fields, auroral particle precipitation, and field-aligned electric currents etc.
统计结果表明,场向电流的发生率、强度和密度都随地磁活动的增加而增大。
It was found that the occurrence rate, current intensity and density increase with an increasing level of geomagnetic activity.
当磁场偏离势场或无力场时,将会产生场向电流,该电流与导管的强度和稳定维持密切相关。
When the magnetic field deviates from potential or force-free field, the field-aligned current can be produced, and it relates closely with the intensity and lifetime of ducts.
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