Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-017-4046-6 |
Physical processes controlling earlier and later onset of a typhoon season in the western North Pacific | |
Zuo, Heng1; Li, Tim1,2,3; Liu, Jia1; Peng, Melinda4 | |
2018-10-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 51页码:2807-2823 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The interannual variability of typhoon onset date in western North Pacific (WNP) during 1979-2015 is investigated. The average date in the earlier (later) onset group is early April (late July). A diagnosis of the genesis potential index shows that the key factor affecting the earlier and later onset lies in the background moisture field. According to their evolution feature, the earlier onset cases are further divided into two sub-groups. In the first sub-group, positive specific humidity anomalies were confined in the western WNP and caused primarily by circulation anomalies associated with a La Nina in the equatorial eastern Pacific. In the second sub-group, positive specific humidity anomalies were confined in the eastern WNP and caused by anomalous convection associated with the Pacific Meridional Mode (PMM) in the tropical and subtropical eastern Pacific. In the later onset composite, negative specific humidity anomalies appear in the WNP, and were accompanied by an anomalous anticyclone in situ and a V-shape negative SSTA pattern in the western Pacific. In addition, the change of background vertical wind shear (VWS) also influences the TC onset date. A decrease (increase) in the VWS magnitude and an easterly (westerly) shear anomaly occur in the earlier (later) onset composite. Physically it is argued that both the magnitude of the VWS and the sign of anomalous zonal wind shear may affect TC formation in the WNP. |
英文关键词 | Earlier or later onset of a typhoon season Environmental moisture change Vertical wind shear |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000444947600025 |
WOS关键词 | TROPICAL CYCLONE FORMATION ; SYNOPTIC-SCALE DISTURBANCES ; MADDEN-JULIAN OSCILLATION ; COUPLED CLIMATE MODEL ; EAST-ASIAN CLIMATE ; PART I ; SURFACE TEMPERATURE ; SUMMER MONSOON ; ROSSBY WAVES ; EL-NINO |
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/35686 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Minist Educ KLME,Collaborat Innovat Ctr Forecast, Joint Int Res Lab Climate & Environm Change ILCEC, Nanjing, Jiangsu, Peoples R China; 2.Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA; 3.Univ Hawaii Manoa, Dept Atmospher Sci, Honolulu, HI 96822 USA; 4.Naval Res Lab, Monterey, CA USA |
推荐引用方式 GB/T 7714 | Zuo, Heng,Li, Tim,Liu, Jia,et al. Physical processes controlling earlier and later onset of a typhoon season in the western North Pacific[J]. CLIMATE DYNAMICS,2018,51:2807-2823. |
APA | Zuo, Heng,Li, Tim,Liu, Jia,&Peng, Melinda.(2018).Physical processes controlling earlier and later onset of a typhoon season in the western North Pacific.CLIMATE DYNAMICS,51,2807-2823. |
MLA | Zuo, Heng,et al."Physical processes controlling earlier and later onset of a typhoon season in the western North Pacific".CLIMATE DYNAMICS 51(2018):2807-2823. |
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