RADIOWAVE DIFFRACTION DURING THE PASSAGE OF AN ACOUSTIC SHOCK THROUGH A SPORADIC E-LAYER

被引:8
作者
JACOBSON, AR
CARLOS, RC
ARGO, PE
RICKEL, DG
机构
[1] Los Alamos Natl Lab, Los Alamos, NM,, USA, Los Alamos Natl Lab, Los Alamos, NM, USA
关键词
ACOUSTIC WAVES - IONOSPHERE - E region;
D O I
10.1029/RS021i004p00752
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Bistatic HF Doppler measurements of the ionospheric disturbance arising from a large ground level chemical expolosion have revealed a peculiar HF return which begins at large positive Doppler ( greater than plus 5 Hz) and linearly evolves to large negative Doppler ( less than minus 5 Hz). Various pieces of evidence in our data suggest we observed an HF wave which is diffracted from the intersection of the acoustic shock and an extensive plane of sporadic E ionization at 110 km. From these measurements we estimate the horizontal trace velocity of the locus of intersection.
引用
收藏
页码:752 / 760
页数:9
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