The seasonal distribution of sporadic E layers observed from radio occultation measurements and its relation with wind shear measured by TIMED/TIDI

被引：33
|
作者：
Liu, Yi [1 ]
Zhou, Chen [1 ]
Tang, Qiong [1 ]
Li, Zhengqiang [2 ]
Song, Yang [2 ]
Qing, Haiyin [3 ]
Ni, Binbin [1 ]
Zhao, Zhengyu [1 ]
机构：
[1] Wuhan Univ, Sch Elect Informat, Dept Space Phys, Wuhan 430072, Hubei, Peoples R China
[2] Shanghai Aircraft Design & Res Inst, Shanghai 201210, Peoples R China
[3] Leshan Normal Univ, Sch Phys & Elect Engn, Leshan, Peoples R China
来源：
ADVANCES IN SPACE RESEARCH | 2018年 / 62卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Morphology of global E-s layers; Wind shear theory; Diurnal and semidiurnal atmospheric tides; NEUTRAL WINDS; DOPPLER INTERFEROMETER; EQUATORIAL ELECTROJET; SOUTHERN-HEMISPHERE; PLANETARY-WAVES; MIDLATITUDE; REGION; METEOR; SOLAR; THERMOSPHERE;
D O I：
10.1016/j.asr.2018.04.026
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
By using the 2002-2016 dataset of COSMIC, CHAMP and GRACE radio occultation (RO) and TIMED/TIDI, we investigate the morphology of global sporadic E (E-s) layers and its relation with wind shear. The occurrence rate of E-s layers depends on temporal and spatial variation. The occurrence rate of E-s layers has a maximum at around 103 km in middle latitude regions in summer hemisphere. The results show that the global distribution of E-s layers is relatively consistent with the wind shear distribution. The height-local time distribution of E-s layers occurrences are primary modulated by diurnal and semidiurnal atmospheric tides. However, the distribution of E-s layers occurrence rate cannot be explained completely according to the wind shear theory, especially at equatorial and auroral regions. More observations are required to further investigate the formation of E-s layers and its relation with wind shear. (C) 2018 COSPAR. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：426 / 439
页数：14
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