The study of QP echoes observed by the Chung-Li Radar
碩士 === 國立中央大學 === 太空科學研究所 === 92 === Sporadic E (Es) layers are ionization enhancements in the E region at altitude between 90 and 120 km. The density can be up to an order of magnitude greater than that in the background and the major species in the layer are metallic. High-resolution observations...
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ndltd-TW-092NCU050690172015-10-13T13:04:43Z http://ndltd.ncl.edu.tw/handle/19207540789186079501 The study of QP echoes observed by the Chung-Li Radar 利用中壢特高頻雷達對準週期回波的研究 Pei-Chen Lai 賴珮晨 碩士 國立中央大學 太空科學研究所 92 Sporadic E (Es) layers are ionization enhancements in the E region at altitude between 90 and 120 km. The density can be up to an order of magnitude greater than that in the background and the major species in the layer are metallic. High-resolution observations of quasi-periodic (QP) structures of the midlatitude E region irregularities made with the MU radar were presented in 1991. The structures were found to display striations with periods close to the Brunt Vaisala period. After then, the Chung-Li radar observed the same phenomenon, too. The physical mechanisms proposed for the generation of QP echoes are associated with gravity wave and wind shear. In this study we present an optimum postulate for the QP echoes observed at the Chung-Li VHF radar. Chien-Ming Huang 黃健民 2004 學位論文 ; thesis 54 zh-TW |
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碩士 === 國立中央大學 === 太空科學研究所 === 92 === Sporadic E (Es) layers are ionization enhancements in the E region at altitude between 90 and 120 km. The density can be up to an order of magnitude greater than that in the background and the major species in the layer are metallic.
High-resolution observations of quasi-periodic (QP) structures of the midlatitude E region irregularities made with the MU radar were presented in 1991. The structures were found to display striations with periods close to the Brunt Vaisala period. After then, the Chung-Li radar observed the same phenomenon, too.
The physical mechanisms proposed for the generation of QP echoes are associated with gravity wave and wind shear. In this study we present an optimum postulate for the QP echoes observed at the Chung-Li VHF radar.
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Chien-Ming Huang |
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Chien-Ming Huang Pei-Chen Lai 賴珮晨 |
author |
Pei-Chen Lai 賴珮晨 |
spellingShingle |
Pei-Chen Lai 賴珮晨 The study of QP echoes observed by the Chung-Li Radar |
author_sort |
Pei-Chen Lai |
title |
The study of QP echoes observed by the Chung-Li Radar |
title_short |
The study of QP echoes observed by the Chung-Li Radar |
title_full |
The study of QP echoes observed by the Chung-Li Radar |
title_fullStr |
The study of QP echoes observed by the Chung-Li Radar |
title_full_unstemmed |
The study of QP echoes observed by the Chung-Li Radar |
title_sort |
study of qp echoes observed by the chung-li radar |
publishDate |
2004 |
url |
http://ndltd.ncl.edu.tw/handle/19207540789186079501 |
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