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| 題 名 | 東亞梅雨期1979年大範圍大氣垂直模結構初步研究 |
|---|---|
| 作 者 | 李汴軍; 王惠民; | 書刊名 | 大氣科學 |
| 卷 期 | 18:3 1990.09[民79.09] |
| 頁 次 | 頁229-238 |
| 分類號 | 328.63 |
| 關鍵詞 | 大氣; 大範圍; 東亞; 垂直模; 梅雨期; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 本文初步提出垂直模分解1979年5月和6月大部分東半球從赤道到北緯60度之III-b觀測資料,來分析其16個區域之能量結構特徵。在此研究範圍之平均能量可以每一垂直模之分量來表示。其結果顯示在熱帶地區是以等效深度243 m之第四垂直模之能量為主,隨著緯度之增加,外部模能量逐漸佔優勢。 初步結果亦顯示印度季風區域6月中旬第四垂直模可用位能變化與該季風開始有關,華南、臺灣地區梅雨期5月和6月第四垂直模能量完全不同。在定性上印度季風與華南、臺灣地區第二垂直模動能間有很好關係。 |
| 英文摘要 | This paper present a preliminary vertical modal decomposition of FGGE level III-b data to analyze the structure of the energetic characteristics over 16b blocks which cover most of the Eastern Hemisphere from the equator to 60N during May and June, 1979. The average energeties of cash block is computed as a function of the vertical mode index. It is shown that the internal mode with equivalent depth of the order 243 m is dominate in the tropical areas and the external mode poleward becames important from the equator. The preliminary results show that the onset of Indian monsoon is, possibly, related to the variations of the available potential energy in the fourth vertical mode over the Indian monsoon regions in middle June. The energetic distributions of the fourth vertical mode from May to June is quite different over the Southern China-Taiwan regions. The energetic variations of the second vertical mode from May to June, qualitatively, reveal that there is a consistent relationship between Indian monsoon and southern China-Taiwan areas. |
本系統中英文摘要資訊取自各篇刊載內容。