Interplanetary and ionosphere scintillation produced by ICME 20 December 2015

被引：15

作者：

Chashei, I. V. ^{[1
]}

Tyul'bashev, A. ^{[1
]}

Shishov, V. I. ^{[1
]}

Subaev, I. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Lebedev Phys Inst, Moscow, Russia

来源：

SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS | 2016年 / 14卷 / 09期

关键词：

PROPAGATION;

D O I：

10.1002/2016SW001455

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Observational data of scintillation monitoring with typical time about 1 s at the frequency 111 MHz are presented for the period between 18 and 23 December when interplanetary coronal mass ejection (ICME) of flare origin resulted in the geomagnetic storm on 20-21 December 2015 with Dst approximate to -200 nT. Our estimates show that the mean ICME speed between the solar corona and the start of interplanetary scintillation enhancement is close to the mean speed between the corona and the Earth. The strong increase of the nighttime scintillation level is observed after ICME coming to the Earth. Scintillation analysis of the individual radio sources shows that the 1 s night scintillation is of ionospheric origin and can be explained by an order increase of irregularity drift speed in the disturbed ionosphere.

引用

收藏

页码：682 / 688

页数：7

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