Vertical group and phase velocities of ionospheric waves derived from the MU radar

J. Y. Liu, C. C. Hsiao, C. H. Liu, M. Yamamoto, S. Fukao, H. Y. Lue, F. S. Kuo

研究成果: 雜誌貢獻期刊論文同行評審

2 引文 斯高帕斯(Scopus)

摘要

The middle- and upper-atmosphere (MU) radar (34.85°N, 136.10°E) was operated in the incoherent scatter power-only mode to observe the ionosphere during 17 June 2001. Pronounced 200- to 300-min. waves in the echo power appeared in the F2 region during 0240-1250 local time on 17 June 2001. A procedure of Fourier analyses is conducted to derive power spectra, vertical phase, and group velocities of the pronounced waves. Results show that the center frequency of the waves is a function of the wave number. The opposite directions of the vertical phase and group velocities imply the presence of atmospheric gravity waves.

原文???core.languages.en_GB???
文章編號RS4014
期刊Radio Science
42
發行號4
DOIs
出版狀態已出版 - 2007

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