Variations in High-frequency Oscillations of Tropical Cyclones over the Western North Pacific
文献类型：期刊论文
| 作者 | Chen, SM; Li, WB; Wen, ZP; Zhou, MS; Lu, YY; Qian, YK; Liu, HY; Fang, R |
| 刊名 | ADVANCES IN ATMOSPHERIC SCIENCES
 |
| 出版日期 | 2018 |
| 卷号 | 35期号:4页码:423-434 |
| 关键词 | tropical cyclone high-frequency oscillation western North Pacific South China Sea |
| 通讯作者 | eeslwb@mail.sysu.edu.cn |
| 英文摘要 | Variations in the high-frequency oscillations of tropical cyclones (TCs) over the western North Pacific (WNP) are studied in numerical model simulations. Power spectrum analysis of maximum wind speeds at 10 m (MWS10) from an ensemble of 15 simulated TCs shows that oscillations are significant for all TCs. The magnitudes of oscillations in MWS10 are similar in the WNP and South China Sea (SCS); however, the mean of the averaged significant periods in the SCS (1.93 h) is shorter than that in the open water of the WNP (2.83 h). The shorter period in the SCS is examined through an ensemble of simulations, and a case simulation as well as a sensitivity experiment in which the continent is replaced by ocean for Typhoon Hagupit (2008). The analysis of the convergence efficiency within the boundary layer suggests that the shorter periods in the SCS are possibly due to the stronger terrain effect, which intensifies convergence through greater friction. The enhanced convergence strengthens the disturbance of the gradient and thermal wind balances, and then contributes to the shorter oscillation periods in the SCS. |
| 学科主题 | Meteorology & Atmospheric Sciences |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17085]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 推荐引用方式 GB/T 7714 | Chen, SM,Li, WB,Wen, ZP,et al. Variations in High-frequency Oscillations of Tropical Cyclones over the Western North Pacific[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2018,35(4):423-434. |
| APA | Chen, SM.,Li, WB.,Wen, ZP.,Zhou, MS.,Lu, YY.,...&Fang, R.(2018).Variations in High-frequency Oscillations of Tropical Cyclones over the Western North Pacific.ADVANCES IN ATMOSPHERIC SCIENCES,35(4),423-434. |
| MLA | Chen, SM,et al."Variations in High-frequency Oscillations of Tropical Cyclones over the Western North Pacific".ADVANCES IN ATMOSPHERIC SCIENCES 35.4(2018):423-434. |
入库方式： OAI收割
来源：南海海洋研究所
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