The occurrence of lower hybrid cavities in the upper ionosphere

被引：28

作者：

Dovner, PO

Eriksson, AI

Bostrom, R

Holback, B

Waldemark, J

Eliasson, L

Boehm, M

机构：

[1] UMEA UNIV,DEPT APPL PHYS & ELECT,S-90187 UMEA,SWEDEN

[2] SWEDISH INST SPACE PHYS,S-98128 KIRUNA,SWEDEN

[3] CALTECH,JET PROP LAB,PASADENA,CA 91109

来源：

GEOPHYSICAL RESEARCH LETTERS | 1997年 / 24卷 / 05期

关键词：

D O I：

10.1029/97GL00424

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Lower hybrid cavities (LHC), i. e., small-scale density depletions coinciding with enhanced lower hybrid waves, are frequent in the upper ionosphere. It is found that they exist in all regions the Freja satellite has scanned, as long as lower hybrid waves are present. They are found most frequently at magnetic latitudes between 55 degrees to 65 degrees, preferably on the morning side. In the auroral oval, the LHCs do not occur as densely as at lower latitudes but they usually form larger structures.

引用

页码：619 / 622

页数：4

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