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| 題名: | Synoptic development of the Hanoi heavy rainfall event of 30-31 October 2008: Multiple-scale processes |
| 作者: | 嚴明鉦;Chen, Tsing-Chang;Yen, Ming-Cheng;Tsay, Jenq-Dar;Tan Thanh, Nguyen Thi;Alpert, Jordan |
| 貢獻者: | 地球科學學院大氣科學學系 |
| 關鍵詞: | Archives & records;Atmosphere;Cold;Cold flow;Cold vortexes;Cyclogenesis;Cyclones;Cyclonic vortexes;Earth, ocean, space;Exact sciences and technology;External geophysics;Fluid dynamics;Fluid flow;Heavy rainfall;Hydrology;Marine;Meteorology;Modes;Monsoons;Mountains;Precipitation;Rain;Rainfall;Spectral analysis;Spectrum analysis;Surges;Time series;Tropical environments;Vortices;Water vapor;Water vapour;Wind;Winds;Zonal winds |
| 日期: | 2012-04-01 |
| 上傳時間: | 2026-04-21 13:35:23 (UTC+8) |
| 出版者: | American Meteorological Society;Boston, MA: American Meteorological Society |
| 摘要: | 摘要： The 30–31 October 2008 Hanoi, Vietnam, heavy rainfall–flood (HRF) event occurred unusually farther north than other Vietnam events. The cause of this event is explored with multiple-scale processes in the context of the midlatitude–tropical interaction. In the midlatitudes, the cold surge linked to the Hanoi event can be traced westward to the leeside cyclogenesis between the Altai Mountains and Tianshan. This cyclone developed into a Bering Sea explosive cyclone later, simultaneously with the occurrence of the Hanoi HRF event. In the tropics, a cold surge vortex formed on 26 October, south of the Philippines, through the interaction of an easterly disturbance, an already existing small surface vortex in the Celebes Sea, and the eastern Asian cold surge flow. This cold surge vortex developed into a cyclone, juxtaposed with the surface high of the cold surge flow, and established a strong moist southeasterly flow from the South China Sea to Hanoi, which helped maintain the HRF event. Spectral analysis of the zonal winds north and south of the Hanoi HRF cyclone and rainfall at Hanoi reveal the existence of three monsoon modes: 30–60, 12–24, and 5 days. The cold surge vortex developed into an HRF cyclone in conjunction with the in-phase constructive interference of the three monsoon modes, while the Hanoi HRF event was hydrologically maintained by the northwestward flux of water vapor into Hanoi by these monsoon modes.
出版者： Boston, MA: American Meteorological Society
出版日期： 2012-04-01
出處： Monthly Weather Review, 2012-04, Vol.140 (4), p.1219-1240
資源來源： EBSCOhost OmniFile Full Text Select
版權： 2015 INIST-CNRS
版權： Copyright American Meteorological Society Apr 2012
版權： Copyright American Meteorological Society 2012
識別號： ISSN: 0027-0644
識別號： EISSN: 1520-0493
識別號： DOI: 10.1175/mwr-d-11-00111.1
識別號： CODEN: MWREAB |
| 顯示於類別: | [大氣科學學系] 期刊論文
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