First observations of type-1 sporadic E irregularities in the equatorial anomaly region using the Chung-Li VHF radar

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题名:	First observations of type-1 sporadic E irregularities in the equatorial anomaly region using the Chung-Li VHF radar
作者:	Huang,CM;Chu,YH
贡献者:	太空科學研究所
关键词:	ELECTROJET IRREGULARITIES;MIDLATITUDE;ECHOES;IONOSPHERE
日期:	1998
上传时间:	2010-06-29 18:38:55 (UTC+8)
出版者:	中央大學
摘要:	In this paper we present the characteristics of mid-latitude irregularities first observed with the 52 MHz Chung-Li radar. Intense type-1 echoes with Doppler velocities of about 270 m/s (slightly smaller than the nominal ion-acoustic wave speed of 360 m/s) in the height range from 103.1 km to 104.5 Irm lasted for about 2 minutes. The range-time variations of sequential power spectra indicate that the patch of type-1 irregularities moved toward the radar at a rate of about 42 m/s. The zonal drift motions of the type-1 and type-2 irregularities obtained from an interferometry technique showed that the irregularities drifted eastward with ail average speed of 84 m/s.
關聯:	GEOPHYSICAL RESEARCH LETTERS
显示于类别:	[太空科學研究所 ] 期刊論文

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