| NUMERICAL SIMULATION STUDY OF THE EFFECTS OF TERRAIN AROUND TAIWAN ON TYPHOON DOT(1990) |
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| 作者姓名： | 阎敬华 董克勤 |
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| 作者单位： | Guangzhou Inditute of Tropical and Oceanic Meteorology, Guangzhou, 510080;Chinese Academy of Meleorology ical Sciences, Beijing, 100081 |
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| 摘 要： | With the use of analyzed TCM-90 data,Typhoon Dot(1990)and complex evolutions are successfullyreproduced in numerical sboulation as it travels over the island of Taiwan. The simulation includes theformation of secondary highs in both circulation and geopotential fields, trajectory jumps during mergence with main centers, anomalous northward movement of a low center west of Taiwan, evolutionalprocess of a low-level jet over the Taiwan Straits and significant deviations of circulation center fromgeopotentia1 center between upper and lower levels. By examining ev0lutions of 3-h interval simulatedresults, detailed processes of changes in structure and track before and after Dot's passage of Taiwanis given, whose evolutional images are otherwise impossible with conventionai observations at intervalsof 6 h. A number of control experboents are conducted in the end of the work for understanding causesand mechanisms behind various properties.
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| 关 键 词： | Typhoon Dot terrain effects numerical simulation |
| 收稿时间： | 1995/11/30 0:00:00 |
| 修稿时间： | 4/8/1997 12:00:00 AM |
NUMERICAL SIMULATION STUDY OF THE EFFECTS OF TERRAIN AROUND TAIWAN ON TYPHOON DOT(1990) |
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| Yang Jinghua and Dong Keqin.NUMERICAL SIMULATION STUDY OF THE EFFECTS OF TERRAIN AROUND TAIWAN ON TYPHOON DOT(1990)[J].Journal of Tropical Meteorology,1997,3(2):128-138. |
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| Authors: | Yang Jinghua and Dong Keqin |
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| Institution: | Guangzhou Inditute of Tropical and Oceanic Meteorology, Guangzhou, 510080;Chinese Academy of Meleorology ical Sciences, Beijing, 100081 |
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| Abstract: | With the use of analyzed TCM-90 data,Typhoon Dot(1990)and complex evolutions are successfullyreproduced in numerical sboulation as it travels over the island of Taiwan. The simulation includes theformation of secondary highs in both circulation and geopotential fields, trajectory jumps during mergence with main centers, anomalous northward movement of a low center west of Taiwan, evolutionalprocess of a low-level jet over the Taiwan Straits and significant deviations of circulation center fromgeopotentia1 center between upper and lower levels. By examining ev0lutions of 3-h interval simulatedresults, detailed processes of changes in structure and track before and after Dot's passage of Taiwanis given, whose evolutional images are otherwise impossible with conventionai observations at intervalsof 6 h. A number of control experboents are conducted in the end of the work for understanding causesand mechanisms behind various properties. |
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| Keywords: | Typhoon Dot terrain effects numerical simulation |
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