On the linkage between mesospheric gravity waves and occurrence of equatorial plasma bubble observed during the low solar activity

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Title:	On the linkage between mesospheric gravity waves and occurrence of equatorial plasma bubble observed during the low solar activity
Authors:	許樂利;Taori, A;Kamalakar, V;Joshi, L M;Sripathi, S;Patra, A K
Contributors:	全球大氣觀測與資料應用研究中心
Date:	2012-12-01
Issue Date:	2026-04-23 11:24:54 (UTC+8)
Publisher:	Council of Scientific and Industrial Research
Abstract:	摘要： In this paper, the linkage between the low-latitude mesospheric gravity waves and the equatorial plasma bubble (EPB) have been investigated using simultaneously Rayleigh lidar and VHF radar observations from Gadanki (13.5 degree N, 79.2 degree E) and ionosonde observations from Tirunelveli (8.7 degree N, 77.8 degree E) made between 2007 and 2009 when solar activity was undergoing a deep minima. The two sets of observations have been analysed, each comprising of one case having EPB and another without EPB observed on two nearby nights. Observations show that the occurrences of plume structures in the radar observations are found to have a close link with the amplitudes of the short period gravity waves in the mesospheric temperature. It is argued that such waves have an important role in seeding the Rayleigh-Taylor (RT) instability manifesting EPB. 出版日期： 2012-04-01 出處： Indian journal of radio & space physics, 2012-04, Vol.41 (2), p.264-270 識別號： ISSN: 0367-8393
Appears in Collections:	[Global Atmosphere Observation and Data Application Research Center] journal & Dissertation

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