Drifting black aurorae
Drifting black aurorae
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飘逸的黑色极光
DOI：
10.1029/ja095ia01p00241
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发表时间：
1990
影响因子：
--
通讯作者：
E. Nielsen
中科院分区：
文献类型：
--
作者：
H. Schoute;M. Scourfield;E. Nielsen
向东漂移形式的特征，以前在文献中描述为黑色极光，已经在低光照的电视摄像机数据中被识别出来。电视的视场在STARE的视场和一台全天候照相机的视场之内。在这些观测的基础上，作者提出，这些极光形式是在极光带的边界上沿着相邻极光带之间的暗区传播的褶皱或波的表现。褶皱或波发生的条件与开尔文-亥姆霍兹静电不稳定性的形成相一致。
Characteristics of eastward drifting forms, previously described in the literature as black aurorae, have been identified in low-light level TV camera data. The TV field of view was within the field of view of STARE and that of an all-sky camera. On the basis of these observations the authors propose that these auroral forms are a manifestation of folds or waves on the borders of auroral bands propagating along the dark regions between neighboring auroral bands. Conditions under which the folds or waves occur are compatible with their formation by the Kelvin-Helmholtz electrostatic instability.