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| 題 名 | 1979年東亞梅雨期中低緯度大氣垂直模之結構與能量之研究 |
|---|---|
| 作 者 | 李汴軍; | 書刊名 | 大氣科學 |
| 卷 期 | 22:3 1994.09[民83.09] |
| 頁 次 | 頁417-430 |
| 分類號 | 328.63 |
| 關鍵詞 | 梅雨期; 垂直模能量; Mei-Yu period; Vertical mode energy; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 分析1979年5月和6月從30゚E~150゚E,0゚~60゚N範圍內歐洲中期天氣預報中心(ECMWF)III-b三度空間觀測資料之垂直結構,其結果顯示中緯度地區大氣垂直溫度變化較明顯,此現象與東亞梅雨期入梅、出梅前後相吻合。能量百分比顯示,熱帶地區80%能量集中在前四個垂直模內,第一垂直模能量有30天週期趨勢,中緯度地區能量變化有15天週期傾向,副熱帶地區則呈現為過渡地區。熱帶地區以位能為主,副熱帶地區、中緯度地區在第一垂直模以位能居多,動能則在內部模為主要能量。 |
| 英文摘要 | This paper is to study the vertical energetic characteristics based on the ECMWF III - b data over 30゚ E ~ 150゚ E, 0 ~ 60゚ N during May and June, 1979. Firstly, the time variations of the vertical temperature profile in mid-latitudes are significantly observed. The major time change is close to that of the onset and recess of the East Asia Mei-Yu seasons. Secondly, Most of the 80 energy stored in the first four vertical modes is dominant over the tropics. The calculated energy shows there are a 30 day period variations for the first vertical mode in the tropics and 15 day period oscillations revealed in internal and first modes of the mid-latitudes. Besides, it appears seemingly a transient belt in the subtropic regions. Potential energy is dominant in the tropics, in the first vertial mode of the subtropics and mid-latitudes. However kinetic energy is most important over the internal modes in the subtropics and mid-latitudes. |
本系統中英文摘要資訊取自各篇刊載內容。