| SUN Jia,ZUO Juncheng,LING Zheng,YAN Yunwei. 2016. Role of ocean upper layer warm water in the rapid intensification of tropical cyclones:A case study of typhoon Rammasun (1409). Acta Oceanologica Sinica, 35(3):63－68 |
| Role of ocean upper layer warm water in the rapid intensification of tropical cyclones:A case study of typhoon Rammasun (1409) |
| 海洋上层暖水在热带气旋迅速增强中的作用:基于台风威马逊(1409)的个例研究 |
| Received:July 13, 2015 Revised:September 28, 2015 |
| DOI：10.1007/s13131-015-0761-1 |
| Key words:tropical cyclone Rammasun rapid intensification warm water sea surface temperature |
| 中文关键词: 热带气旋 威马逊 迅速增强 暖水 海表面温度 |
| 基金项目: |
| Author Name | Affiliation | E-mail | | SUN Jia | Key Laboratory of Coastal Disaster and Defence of Ministry of Education, Hohai University, Nanjing 210098, China
Institute of Physical Oceanography, Hohai University, Nanjing 210098, China | | | ZUO Juncheng | Key Laboratory of Coastal Disaster and Defence of Ministry of Education, Hohai University, Nanjing 210098, China
Institute of Physical Oceanography, Hohai University, Nanjing 210098, China | zuo@ouc.edu.cn | | LING Zheng | State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | YAN Yunwei | State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | |
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| Abstract: |
| Rammasun intensified rapidly from tropical storm to super typhoon in the northern South China Sea (NSCS) before its landfall on Hainan Island. Analysis of observed data shows that the anomalous ocean upper layer warm water (WW) is important to the rapid intensification of Rammasun. During the period of Rammasun, sea surface temperature (SST) in the NSCS was much warmer than the climatological SST. The anomalous WW supplied more energy to Rammasun, resulting in its rapid intensification. Numerical simulations further confirm that the NSCS WW plays an important role in the rapid intensification of Rammasun. As the WW is removed, the intensification of Rammasun is only 25 hPa, which is 58.1% of that in the original SST-forced run. |
| 中文摘要: |
| 在登陆海南岛之前,台风威马逊在南海北部从热带风暴级别迅速增强成为超强台风。观测数据的分析结果显示,海洋上层的异常暖水在威马逊的迅速增强过程中扮演了重要的角色。威马逊期间,南海北部的海表面温度相比于气候态海表面温度暖很多。这部分异常暖水为威马逊提供了更多的能量,从而导致了威马逊的迅速增强。数值模拟结果进一步证明,南海北部的暖水在台风威马逊的迅速增强过程中起重要作用。如果没有这团异常暖水的影响,威马逊只增强25 hPa,仅为有暖水影响条件下增强程度的58.1%。 |
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