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| 題 名 | 梅雨鋒面個案之數值模擬研究=Numerical Simulation Study on Mei-Yu Front Case |
|---|---|
| 作 者 | 林得恩; | 書刊名 | 飛航天氣 |
| 卷 期 | 41 2024.04[民113.04] |
| 頁 次 | 頁1-28 |
| 分類號 | 328.63 |
| 關鍵詞 | 梅雨鋒面; 數值模式模擬; Mei-Yu front; Numerical model simulation; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 梅雨鋒面通常伴隨著大範圍的降水和强烈的對流活動,對我飛行 安全維護,常常造成相當程度的影響與干擾。爲期掌握梅雨鋒面肇生 顯著降雨時的環境特徵與物理過程,本研究運用高解析度氣象數值模 式 WRF 進行個案數值模擬,嘗試釐清梅雨鋒面前兆環境的關鍵變 化,並有效回饋至飛航預警的實際整備作業上。 模式模擬結果,梅雨鋒面對流位置較實際觀測位置偏南,模擬結 果動力場偏弱,熱力場則明顯偏高,但整體上變化的趨勢大致相同, 顯示模式模擬對於梅雨鋒面天氣系統具有良好的掌握能力。再從模式 靈敏度測試結果顯示,潛熱釋放作用降低局部氣壓場(或高度場),並 進而增强低層噴流,以利於梅雨鋒面或對流的維持及發展。 |
| 英文摘要 | Mei-Yu fronts are usually accompanied by large-scale precipitation and strong convective activities, which often cause considerable impact and interference on the flight safety maintenance. For a period of time, we will understand the environmental characteristics and physical processes when the Mei-Yu front causes significant rainfall, and use the high-resolution meteorological numerical model WRF to conduct case-by-case numerical simulations, trying to clarify the key changes in the Mei-Yu frontal warning environment, and effectively feed back to the actual maintenance operations of the flight warning superior. The model simulation results show that the Mei-Yu frontal convection position is further south than the actual observation position. The simulation results show that the dynamic field is weaker and the thermal field is significantly higher. However, the overall change trend is roughly the same, which shows that the model simulation has a good effect on the Mei-Yu frontal weather system. mastery ability. The model sensitivity test results show that the latent heat release reduces the local pressure field (or height field) and then enhances the low-level jet, which is beneficial to the maintenance and development of the Mei-Yu front or convection system. |
本系統中英文摘要資訊取自各篇刊載內容。