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substorm n.【物理學】磁層亞暴〔地球磁層中的一種擾亂〕。

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Value , and the current density and intensity versus the substorm phases . moreover , the characteristics of substorm current wedge are given special attention . it is found that the density and intensity of facs reach their peak during the expansion phase , the onset of the expansion phase is triggered when imf is changed to southward from northward or the southward imf decreases , and the positions of onset are most likely to be at the edge of plasma sheet near the earth 值分布以及場向電流強度和密度隨亞暴位相的變化,并著重分析了亞暴電流楔的特征。結果表明,亞暴膨脹相的場向電流強度和密度都達到極大值亞暴的膨脹相是由行星際磁場轉向或南向分量變小觸發的,其起始位置很可能位于近地等離子體片內邊緣。

Field - aligned current ; substorm ; substorm current wedge 場向電流亞暴亞暴電流楔