The heights of sporadic-E layer simultaneously observed by the VHF radar and ionosondes in Chung-Li

C. C. Lee, J. Y. Liu, C. J. Pan, K. Igarashi

研究成果: 雜誌貢獻期刊論文同行評審

30 引文 斯高帕斯(Scopus)

摘要

Ionosondes and VHF radars have been employed to simultaneously observe the sporadic E (Es) layer. In previous studies, an absence of correlation was found between the height of field-aligned irregularities (FAI) observed by the radars and the virtual height of the Es layer (h'Es) by their colocated ionosondes. A careful study shows that the low correlation results from the beam broadening effect of the ionosonde. In this paper, the investigation shows a better correlation between the heights of the FAI bottom-side (h(FAIb)) observed by the VHF radar and the h'Es by ionosondes in Chung-Li. It is found that the h'Es is greater than the h(FAIb) by about 5-10 km. Meanwhile, we demonstrate that h'Es observed by two nearby ionosondes (and/or radars) can be employed to evaluate the velocity of waves in the Es layer.

原文???core.languages.en_GB???
頁(從 - 到)641-644
頁數4
期刊Geophysical Research Letters
27
發行號5
出版狀態已出版 - 1 3月 2000

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