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DOI | 10.1007/s00382-017-3537-9 |
Variability of tropical cyclone rapid intensification in the North Atlantic and its relationship with climate variations | |
Wang, Chunzai1; Wang, Xidong2; Weisberg, Robert H.3; Black, Michael L.4 | |
2017-12-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 49 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The paper uses observational data from 1950 to 2014 to investigate rapid intensification (RI) variability of tropical cyclones (TCs) in the North Atlantic and its relationships with large-scale climate variations. RI is defined as a TC intensity increase of at least 15.4 m/s (30 knots) in 24 h. The seasonal RI distribution follows the seasonal TC distribution, with the highest number in September. Although an RI event can occur anywhere over the tropical North Atlantic (TNA), there are three regions of maximum RI occurrence: (1) the western TNA of 12A degrees N-18A degrees N and 60A degrees W-45A degrees W, (2) the Gulf of Mexico and the western Caribbean Sea, and (3) the open ocean southeast and east of Florida. RI events also show a minimum value in the eastern Caribbean Sea north of South America-a place called a hurricane graveyard due to atmospheric divergence and subsidence. On longer time scales, RI displays both interannual and multidecadal variability, but RI does not show a long-term trend due to global warming. The top three climate indices showing high correlations with RI are the June-November ENSO and Atlantic warm pool indices, and the January-March North Atlantic oscillation index. It is found that variabilities of vertical wind shear and TC heat potential are important for TC RI in the hurricane main development region, whereas relative humidity at 500 hPa is the main factor responsible for TC RI in the eastern TNA. However, the large-scale oceanic and atmospheric variables analyzed in this study do not show an important role in TC RI in the Gulf of Mexico and the open ocean southeast and east of Florida. This suggests that other factors such as small-scale changes of oceanic and atmospheric variables or TC internal processes may be responsible for TC RI in these two regions. Additionally, the analyses indicate that large-scale atmospheric and oceanic variables are not critical to TC genesis and formation; however, once a tropical depression forms, large-scale climate variations play a role in TC intensification. |
英文关键词 | Tropical cyclones Climate variability Hurricane activity |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000415579000001 |
WOS关键词 | LARGE-SCALE CHARACTERISTICS ; SEA-SURFACE TEMPERATURE ; OCEAN THERMAL STRUCTURE ; HEMISPHERE WARM POOL ; MULTIDECADAL VARIABILITY ; ENVIRONMENTAL-CONTROL ; REANALYSIS PROJECT ; HURRICANE ACTIVITY ; ATMOSPHERE MODEL ; EASTERN PACIFIC |
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/35787 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China; 2.Hohai Univ, Coll Oceanog, Nanjing, Jiangsu, Peoples R China; 3.Univ S Florida, Coll Marine Sci, St Petersburg, FL USA; 4.NOAA, Atlantic Oceanog & Meteorol Lab, Miami, FL 33149 USA |
推荐引用方式 GB/T 7714 | Wang, Chunzai,Wang, Xidong,Weisberg, Robert H.,et al. Variability of tropical cyclone rapid intensification in the North Atlantic and its relationship with climate variations[J]. CLIMATE DYNAMICS,2017,49. |
APA | Wang, Chunzai,Wang, Xidong,Weisberg, Robert H.,&Black, Michael L..(2017).Variability of tropical cyclone rapid intensification in the North Atlantic and its relationship with climate variations.CLIMATE DYNAMICS,49. |
MLA | Wang, Chunzai,et al."Variability of tropical cyclone rapid intensification in the North Atlantic and its relationship with climate variations".CLIMATE DYNAMICS 49(2017). |
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