A preliminary study of the single crest phenomenon in total electron content (TEC) in the equatorial anomaly region around 120°E longitude between 1999 and 2012

被引：19

作者：

Huang, Linfeng ^{[1
,2
]}

Wang, Jinsong ^{[2
]}

Jiang, Yong ^{[1
]}

Huang, Jiang ^{[3
]}

Chen, Zhou ^{[2
,4
]}

Zhao, Kai ^{[1
]}

机构：

[1] Nanjing Univ Informat Sci & Technol, Sch Math & Stat, Nanjing 210044, Jiangsu, Peoples R China

[2] China Meteorol Adm, Natl Ctr Space Weather, Beijing 100081, Peoples R China

[3] Guangzhou Meteorol Satellite Ground Stn, Guangzhou 510640, Guangdong, Peoples R China

[4] Wuhan Univ, Sch Elect Informat, Wuhan 430072, Peoples R China

来源：

ADVANCES IN SPACE RESEARCH | 2014年 / 54卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Equatorial ionisation anomaly; Single crest phenomenon; Total electron content; SOLAR-CYCLE VARIATIONS; NORTH-SOUTH ASYMMETRY; IONIZATION TRANSPORT; PLASMA FOUNTAIN; F-REGION; IONOSPHERE; FIELDS; MODEL; LAYER;

D O I：

10.1016/j.asr.2014.08.021

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The diurnal variations in total electron content (TEC) in the equatorial ionisation anomaly (ETA) region are not always represented by two crests on both sides of the magnetic equator. Sometimes, only an obvious single crest is evident at equatorial and low latitudes. In this paper, we focus on analysis of the morphological features of the single crest phenomenon in TEC around 120 degrees E longitude during geomagnetic quiet days (Kp < 4_). The variations in TEC are also compared with morphological parameters (foF2 and hmF2) derived from the International Reference Ionosphere extended to Plasmasphere (IRI Plas) model. Our results show that the single crest phenomenon occurs mainly on days with extremely low solar activity, while the corresponding F2 layer critical frequency showed obvious asymmetry, or even only a single peak. (C) 2014 COSPAR. Published by Elsevier Ltd.

引用

页码：2200 / 2207

页数：8

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