O-MODE DECAY AND UPSHIFTED ELECTROMAGNETIC EMISSIONS NEAR CYCLOTRON HARMONICS IN THE IONOSPHERE

被引：26

作者：

TRIPATHI, VK ^{[1
]}

LIU, CS ^{[1
]}

机构：

[1] INDIAN INST TECHNOL, DEPT PHYS, NEW DELHI 110016, INDIA

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 1993年 / 98卷 / A2期

关键词：

D O I：

10.1029/92JA01977

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Near upper hybrid resonance an O mode launched from a ground-based transmitter undergoes two possible parametric decay instabilities: (1) a resonance instability producing field-aligned dc density striations and an upper hybrid wave and (2) a parametric decay instability producing lower hybrid and electron Bernstein modes. A nonlinear coupling between the lower and upper hybrid waves produces O mode sideband radiation. The lower sideband is severely cyclotron damped, while the upper sideband is weakly damped and hence observed on the ground. This explains some of the experimental results reported from the Tromso facility.

引用

页码：1719 / 1723

页数：5

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