Spatial features of Weddell Sea and Yakutsk Anomalies in foF2 diurnal variations during high solar activity periods: Interkosmos-19 satellite and ground-based ionosonde observations, IRI reproduction and GSM TIP model simulation

被引：39

作者：

Klimenko, M. V. ^{[1
,2
]}

Klimenko, V. V. ^{[1
]}

Karpachev, A. T. ^{[3
]}

Ratovsky, K. G. ^{[4
]}

Stepanov, A. E. ^{[5
]}

机构：

[1] RAS, West Dept, Pushkov Inst Terr Magnetism Ionosphere & Radio Wa, Kaliningrad 236017, Russia

[2] Immanuel Kant Balt Fed Univ, Kaliningrad 236041, Russia

[3] RAS, Pushkov Inst Terr Magnetism Ionosphere & Radio Wa, Troitsk 142190, Moscow Region, Russia

[4] RAS, Inst Solar Terr Phys SB, Irkutsk, Russia

[5] Inst Cosmophys Res & Aeron, Yakutsk, Russia

来源：

ADVANCES IN SPACE RESEARCH | 2015年 / 55卷 / 08期

基金：

俄罗斯基础研究基金会;

关键词：

Longitudinal variations; Weddell Sea Anomaly; Topside sounding; Ionosonde; Numerical simulation; IONOSPHERE;

D O I：

10.1016/j.asr.2014.12.032

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

We studied the main morphology of the formation of summer ionospheric anomalies which includes the Weddell Sea Anomaly (WSA) and the Yakutsk Anomaly (YA) in terms of positive night-to-day foF2 differences. For this purpose, we have for the first time used topside sounding (Interkosmos-19 satellite) and ground-based (ionosonde) data as well as results from an empirical model (International Reference Ionosphere - IRI) and from a first-principles model (Global Self-consistent Model of the Thermosphere, Ionosphere and Protonosphere - GSM TIP). The main spatial morphological characteristics of the WSA and YA are similar which points to a common cause for their occurrence. Our preliminary GSM TIP model results showed that the foF2 values at nighttime are greater than at daytime due to: (1) the horizontal plasma transport due to electromagnetic drift; (2) the vertical component of plasma transport along the geomagnetic field lines via meridional neutral wind; (3) the distribution of the neutral composition of the thermosphere. (C) 2015 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：2020 / 2032

页数：13