Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0900.1 |
Impact of Large-Scale Dynamic versus Thermodynamic Climate Conditions on Contrasting Tropical Cyclone Genesis Frequency | |
Sharmila, S.; Walsh, K. J. E. | |
2017-11-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:22 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia |
英文摘要 | Significant advances have been made in understanding the key climate factors responsible for tropical cyclone (TC) activity, yet any theory that estimates likelihood of observed TC formation rates from mean climate states remains elusive. The present study investigates how the extremes of observed TC genesis (TCG) frequency during peak TC seasons are interrelated with distinct changes in the large-scale climate conditions over different ocean basins using the global International Best Track Archive for Climate Stewardship (IBTrACS) dataset and ERA-Interim for the period 1979-2014. Peak TC seasons with significantly high and low TCG frequency are identified for five major ocean basins, and their substantial spatial changes in TCG are noted with regionally distinct differences. To explore the possible climate link behind such changes, a suite of potentially relevant dynamic and thermodynamic climate conditions is analyzed. Results indicate that the observed changes in extreme TCG frequency are closely linked with distinct dominance of specific dynamic and thermodynamic climate conditions over different regions. While the combined influences of dynamic and thermodynamic climate conditions are found to be necessary for modulating TC formation rate over the North Atlantic, eastern Pacific, and southern Indian Oceans, significant changes in large-scale dynamic conditions appear to solely control the TCG frequency over the western Pacific and South Pacific basins. Estimation of the fractional changes in genesis-weighted climate conditions also indicates the coherent but distinct competing effects of different climate conditions on TCG frequency. The present study further points out the need for revising the existing genesis indices for estimating TCG frequency over individual basins. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416488200002 |
WOS关键词 | SEA-SURFACE-TEMPERATURE ; WESTERN NORTH PACIFIC ; NINO-SOUTHERN-OSCILLATION ; INTERANNUAL VARIABILITY ; POTENTIAL INDEX ; CYCLOGENESIS ; CIRCULATION ; HURRICANES ; DISTURBANCES ; INTENSITY |
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/20262 |
专题 | 气候变化 |
作者单位 | Univ Melbourne, Sch Earth Sci, Melbourne, Vic, Australia |
推荐引用方式 GB/T 7714 | Sharmila, S.,Walsh, K. J. E.. Impact of Large-Scale Dynamic versus Thermodynamic Climate Conditions on Contrasting Tropical Cyclone Genesis Frequency[J]. JOURNAL OF CLIMATE,2017,30(22). |
APA | Sharmila, S.,&Walsh, K. J. E..(2017).Impact of Large-Scale Dynamic versus Thermodynamic Climate Conditions on Contrasting Tropical Cyclone Genesis Frequency.JOURNAL OF CLIMATE,30(22). |
MLA | Sharmila, S.,et al."Impact of Large-Scale Dynamic versus Thermodynamic Climate Conditions on Contrasting Tropical Cyclone Genesis Frequency".JOURNAL OF CLIMATE 30.22(2017). |
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