Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029446 |
The Tropical Transition in the Western North Pacific: The Case of Tropical Cyclone Peipah (2007) | |
Chang, Minhee1; Ho, Chang-Hoi1; Chan, Johnny C. L.2; Park, Myung-Sook3; Son, Seok-Woo1; Kim, Jinwon4 | |
2019-05-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:10页码:5151-5165 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea; Peoples R China |
英文摘要 | This study examines the transition of an extratropical disturbance to a tropical cyclone (TC), Peipah (2007), in the western North Pacific (WNP), using reanalysis and geostationary satellite data. Instead of regular diurnal fluctuations of deep convection, the pre-TC disturbance accompanies deep convection only for short durations every other day. When the pre-TC vorticity is traced back to 7days prior to its formation, the traced-back vorticity indicates a strong potential vorticity (PV) trough in the subtropical upper troposphere that originated from the midlatitude lower stratosphere. The quasi-geostrophic forcing and reduced static stability at the leading edge of the PV trough result in the formation of an extratropical disturbance. The vertical structure of the extratropical disturbance shows maximum vorticity in the upper troposphere and cold temperature anomaly within it throughout the entire troposphere. As the extratropical disturbance moved into the tropical WNP, deep convection associated with quasi-geostrophic dynamics over the warm ocean initiated tropical transition of the extratropical disturbance to a TC through diabatic redistribution of PV in the tropospheric column as well as transition of the cold anomaly into a warm anomaly within the vortex. With additional contribution of barotropic energy conversion in the lower troposphere, the warm-core low system finally developed into a TC-strength vortex. These results indicate that PV troughs of the stratospheric origin over the subtropical Pacific Ocean can contribute to TC formations in the WNP. |
英文关键词 | tropical cyclone tropical transition subtropical cyclone potential vorticity intrusion barotropic energy conversion western North Pacific |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000471237200001 |
WOS关键词 | UPPER-TROPOSPHERIC TROUGH ; ROSSBY-WAVE BREAKING ; CLIMATOLOGY ; CONVECTION ; INTRUSIONS ; INTENSIFICATION ; DISTURBANCES ; ORIENTATION ; EVOLUTION ; IMPACTS |
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/183334 |
专题 | 气候变化 |
作者单位 | 1.Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea; 2.City Univ Hong Kong, Sch Energy & Environm, Guy Carpenter Asia Pacific Climate Impact Ctr, Hong Kong, Peoples R China; 3.Korea Inst Ocean Sci & Technol, Busan, South Korea; 4.Natl Inst Meteorol Res, Seogwipo, South Korea |
推荐引用方式 GB/T 7714 | Chang, Minhee,Ho, Chang-Hoi,Chan, Johnny C. L.,et al. The Tropical Transition in the Western North Pacific: The Case of Tropical Cyclone Peipah (2007)[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(10):5151-5165. |
APA | Chang, Minhee,Ho, Chang-Hoi,Chan, Johnny C. L.,Park, Myung-Sook,Son, Seok-Woo,&Kim, Jinwon.(2019).The Tropical Transition in the Western North Pacific: The Case of Tropical Cyclone Peipah (2007).JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(10),5151-5165. |
MLA | Chang, Minhee,et al."The Tropical Transition in the Western North Pacific: The Case of Tropical Cyclone Peipah (2007)".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.10(2019):5151-5165. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论