Strong Modulation of the Pacific Meridional Mode on the Occurrence of Intense Tropical Cyclones over the Western North Pacific

doi:10.1175/JCLI-D-17-0833.1

GSTDTAP > 气候变化

DOI	10.1175/JCLI-D-17-0833.1
	Strong Modulation of the Pacific Meridional Mode on the Occurrence of Intense Tropical Cyclones over the Western North Pacific
	Gao, Si 1; Zhu, Langfeng 1; Zhang, Wei 2; Chen, Zhifan 1
	2018-10-01
发表期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
EISSN	1520-0442
出版年	2018
卷号	31 期号:19 页码:7739-7749
文章类型	Article
语种	英语
国家	Peoples R China; USA
英文摘要	This study finds a significant positive correlation between the Pacific meridional mode (PMM) index and the frequency of intense tropical cyclones (TCs) over the western North Pacific (WNP) during the peak TC season (June-November). The PMM influences the occurrence of intense TCs mainly by modulating large-scale dynamical conditions over the main development region. During the positive PMM phase, anomalous off-equatorial heating in the eastern Pacific induces anomalous low-level westerlies (and cyclonic flow) and upper-level easterlies (and anticyclonic flow) over a large portion of the main development region through a Matsuno-Gill-type Rossby wave response. The resulting weaker vertical wind shear and larger low-level relative vorticity favor the genesis of intense TCs over the southeastern part of the WNP and their subsequent intensification over the main development region. The PMM index would therefore be a valuable predictor for the frequency of intense TCs over the WNP.
英文关键词	Tropical cyclones Climate classification regimes Climate variability
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000441232700003
WOS关键词	DECADAL VARIATIONS ; TYPHOON ACTIVITY ; ATLANTIC SST ; ENSO EVENTS ; EL-NINO ; GENESIS ; VARIABILITY ; SEA ; IMPACTS ; TRENDS
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
引用统计	被引频次：48[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/20152
专题	气候变化
作者单位	1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Joint Int Res Lab Climate & Environm Change, Minist Educ,Key Lab Meteorol Disaster, Nanjing, Jiangsu, Peoples R China; 2.Univ Iowa, IIHR Hydrosci & Engn, Iowa City, IA 52242 USA
推荐引用方式 GB/T 7714	Gao, Si,Zhu, Langfeng,Zhang, Wei,et al. Strong Modulation of the Pacific Meridional Mode on the Occurrence of Intense Tropical Cyclones over the Western North Pacific[J]. JOURNAL OF CLIMATE,2018,31(19):7739-7749.
APA	Gao, Si,Zhu, Langfeng,Zhang, Wei,&Chen, Zhifan.(2018).Strong Modulation of the Pacific Meridional Mode on the Occurrence of Intense Tropical Cyclones over the Western North Pacific.JOURNAL OF CLIMATE,31(19),7739-7749.
MLA	Gao, Si,et al."Strong Modulation of the Pacific Meridional Mode on the Occurrence of Intense Tropical Cyclones over the Western North Pacific".JOURNAL OF CLIMATE 31.19(2018):7739-7749.