| 題名: | Role of submonthly disturbance and 40-50-day ISO on the extreme rainfall event associated with Typhoon Morakot (2009) in Southern Taiwan. |
| 作者: | 洪志誠;Chi-Cherng Hong;Ming-Ying Lee;Huang-Hsiung Hsu;Jui-Ling Kuo |
| 貢獻者: | 地球環境暨生物資源學系(含環境教育與資源碩士班) |
| 關鍵詞: | Typhoon;submonthly disturbancce;submonthly wave pattern;40-50-day ISO;topographic lifting effect |
| 日期: | 2010-04 |
| 上傳時間: | 2014-01-17 19:30:27 (UTC+8) |
| 摘要: | Typhoon Morakot that made landfall on Taiwan during 7–9 August 2009 caused record-breaking rainfall in Southern Taiwan and nearly 700 deaths from mudslides. It was the most severe natural disaster in Southern Taiwan caused by a typhoon in 50 years. Different from typical typhoon cases, characterized by an isolated vortex, Typhoon Morakot was embedded in a large-scale convection region with monsoon circulation of different time scales in the tropical western North Pacific. Morakot's landing on Taiwan occurred concurrently with the arrival of a large-scale cyclonic circulation in a submonthly wave pattern (10–30-day) during the cyclonic phase of the 40–50-day intraseasonal oscillation. It is suggested that the abundant moisture supply from the southwesterly embedded in the multiscale large-scale circulation and the topographic lifting effect of steep terrain resulted in the record-breaking rainfall in Southern Taiwan. |
| 關聯: | Geophysical Research Letters，Vol. 37, Issue 8，Pages L08805 |
| 顯示於類別: | [地球環境暨生物資源學系(含環境教育與資源碩士班)] 期刊論文
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