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

doi:10.1029/2005RS003435

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

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

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.

Original language	English
Article number	RS4014
Journal	Radio Science
Volume	42
Issue number	4
DOIs	https://doi.org/10.1029/2005RS003435
State	Published - 2007

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title = "Vertical group and phase velocities of ionospheric waves derived from the MU radar",

abstract = "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.",

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T1 - Vertical group and phase velocities of ionospheric waves derived from the MU radar

AU - Liu, J. Y.

AU - Hsiao, C. C.

AU - Liu, C. H.

AU - Yamamoto, M.

AU - Fukao, S.

AU - Lue, H. Y.

AU - Kuo, F. S.

PY - 2007

Y1 - 2007

N2 - 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.

AB - 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.

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U2 - 10.1029/2005RS003435

DO - 10.1029/2005RS003435

M3 - 期刊論文

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SN - 0048-6604

VL - 42

JO - Radio Science

JF - Radio Science

IS - 4

M1 - RS4014

ER -

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

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