Signatures of quasi-2-day planetary waves in the equatorial electrojet: results from simultaneous observations of mesospheric winds and geomagnetic field variations at low latitudes

被引：26

作者：

Gurubaran, S ^{[1
]}

Ramkumar, TK

Sridharan, S

Rajaram, R

机构：

[1] Indian Inst Geomagnetism, Equatorial Geophys Res Lab, Krishnapuram 627011, Tirunelveli, India

[2] Indian Inst Geomagnetism, Colaba 400005, Mumbai, India

来源：

JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS | 2001年 / 63卷 / 09期

关键词：

equatorial ionosphere; mesospheric dynamics; mesosphere-ionosphere coupling;

D O I：

10.1016/S1364-6826(00)00193-0

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Observations of mesospheric winds in the altitude region 84-98 km with the medium frequency (MF) radar located close to the magnetic equator at Tirunelveli (8.7 degreesN, 77.8 degreesE geographic, 0.35 degreesN magnetic dip), India, and the ground-based geomagnetic data from the low latitude Indian sector, are used to identify the signatures of the quasi-2-day (QTD) planetary waves in the equatorial electrojet (EEJ). It is found that there is a reasonable correlation between the occurrence times of the quasi-2-day oscillation in the EEJ strength and the mesospheric winds as revealed by the observations. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：813 / 821

页数：9

共 33 条

[1]

Altadill D, 1998, ANN GEOPHYS-ATM HYDR, V16, P609, DOI 10.1007/s00585-998-0609-5

[2] Vertical development of the 2-day wave in the midlatitude ionospheric F region [J].