Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027252 |
Impacts of SST Patterns on Rapid Intensification of Typhoon Megi (2010) | |
Kanada, Sachie1; Tsujino, Satoki1; Aiki, Hidenori1,2; Yoshioka, Mayumi K.1; Miyazawa, Yasumasa2; Tsuboki, Kazuhisa1; Takayabu, Izuru3 | |
2017-12-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:24 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | Typhoon Megi (2010), a very intense tropical cyclone with a minimum central pressure of 885 hPa, was characterized by especially rapid intensification. We investigated this intensification process by a simulation experiment using a high-resolution (0.02 degrees x0.02 degrees) three-dimensional atmosphere-ocean coupled regional model. We also performed a sensitivity experiment with a time-fixed sea surface temperature (SST). The coupled model successfully simulated the minimum central pressure of Typhoon Megi, whereas the fixed SST experiment simulated an excessively low minimum central pressure of 839 hPa. The simulation results also showed a close relationship between the radial SST profiles and the rapid intensification process. Because the warm sea increased near-surface water vapor and hence the convective available potential energy, the high SST in the eye region facilitated tall and intense updrafts inside the radius of maximum wind speed and led to the start of rapid intensification. In contrast, high SST outside this radius induced local secondary updrafts that inhibited rapid intensification even if the mean SST in the core region exceeded 29.0 degrees C. These secondary updrafts moved inward and eventually merged with the primary eyewall updrafts. Then the storm intensified rapidly when the high SST appeared in the eye region. Thus, the changes in the local SST pattern around the storm center strongly affected the rapid intensification process by modulating the radial structure of core convection. Our results also show that the use of a high-resolution three-dimensional atmosphere-ocean coupled model offers promise for improving intensity forecasts of tropical cyclones. |
英文关键词 | tropical cyclone rapid intensification atmosphere-ocean coupled model |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000419950200030 |
WOS关键词 | OCEAN THERMAL STRUCTURE ; TROPICAL CYCLONES ; PART I ; POTENTIAL INTENSITY ; CONVECTIVE BURSTS ; COUPLED MODEL ; SURFACE ; RESOLUTION ; VARIABILITY ; DEPENDENCE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33613 |
专题 | 气候变化 |
作者单位 | 1.Nagoya Univ, Inst Space Earth Environm Res, Nagoya, Aichi, Japan; 2.Japan Agcy Marine Earth Sci & Technol, Yokohama, Kanagawa, Japan; 3.Japan Meteorol Agcy, Meteorol Res Inst, Tsukuba, Ibaraki, Japan |
推荐引用方式 GB/T 7714 | Kanada, Sachie,Tsujino, Satoki,Aiki, Hidenori,et al. Impacts of SST Patterns on Rapid Intensification of Typhoon Megi (2010)[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(24). |
APA | Kanada, Sachie.,Tsujino, Satoki.,Aiki, Hidenori.,Yoshioka, Mayumi K..,Miyazawa, Yasumasa.,...&Takayabu, Izuru.(2017).Impacts of SST Patterns on Rapid Intensification of Typhoon Megi (2010).JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(24). |
MLA | Kanada, Sachie,et al."Impacts of SST Patterns on Rapid Intensification of Typhoon Megi (2010)".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.24(2017). |
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