COMPLEX DEMODULATION APPLIED TO PI2 GEOMAGNETIC-PULSATIONS

被引：56

作者：

BEAMISH, D ^{[1
]}

HANSON, HW ^{[1
]}

WEBB, DC ^{[1
]}

机构：

[1] UNIV YORK, DEPT PHYS, YORK YO1 5DD, N YORKSHIRE, ENGLAND

来源：

GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY | 1979年 / 58卷 / 02期

关键词：

D O I：

10.1111/j.1365-246X.1979.tb01035.x

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The spectral technique of complex demodulation is applied to Pi2 pulsations recorded along a meridional profile. The technique provides instantaneous values of amplitude and phase and allows frequency dispersion to be taken into account. The variations of magnetospheric wave polarization parameters are observed as a function of both space and time. The results are directly compared with recent theories of the resonance of geomagnetic field lines and the effects of the ionosphere on ground based observations. The theoretical predictions are tested and the experimental results indicate that the night‐time ionosphere is capable of a controlling influence on the source characteristics of these magnetospheric waves in the plasmapause region. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：471 / 493

页数：23

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