THE PHASE RELATIONSHIP BETWEEN ULF GEOMAGNETIC-PULSATIONS AND HF DOPPLER FREQUENCY-SHIFT OSCILLATIONS ON MARCH 24, 1991

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题名:	THE PHASE RELATIONSHIP BETWEEN ULF GEOMAGNETIC-PULSATIONS AND HF DOPPLER FREQUENCY-SHIFT OSCILLATIONS ON MARCH 24, 1991
作者:	LIU,JY;HUANG,YN;BERKEY,FT
贡献者:	太空及遙測研究中心
关键词:	MID-LATITUDES;MODEL
日期:	1993
上传时间:	2010-06-29 18:52:37 (UTC+8)
出版者:	中央大學
摘要:	Previous theoretical models showed that, in the middle geomagnetic latitudes the oscillations in the Doppler frequency shift lag and lead the H component of ULF pulsations field on the ground, owing to the advection and compression mechanisms by 90-degrees, respectively. On March 24, 1991, measurements obtained from a CW-HF Doppler sounding system and a fluxgate magnetometer show phase differences of 15-degrees-77-degrees between the Doppler frequency shift oscillations and the H component of ULF pulsations field at ground level, which indicates that the Doppler velocity arises from predominant changes due to the compression mechanism.
關聯:	JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY
显示于类别:	[太空及遙測研究中心] 期刊論文

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