GSTDTAP  > 气候变化
DOI10.1029/2019GL082925
Relationship Between the Pacific-North American Pattern and the Frequency of Tropical Cyclones Over the Western North Pacific
Song, Jinjie1,2,3; Klotzbach, Philip J.4
2019-06-16
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2019
卷号46期号:11页码:6118-6127
文章类型Article
语种英语
国家Peoples R China; USA
英文摘要

The frequency of tropical cyclones (TCs) over the western North Pacific during June-November has a significant inverse correlation with the concurrent Pacific-North American (PNA) pattern from 1965 to 2016. During low PNA years, more TCs form north of 12.5 degrees N, with significantly greater TC occurrences from 15 to 20 degrees N, compared to high PNA years. The difference in TC genesis location can be explained by the differences in the genesis potential index derived from the environmental variables in both PNA phases. The PNA influences TC formation primarily by modulating large-scale dynamic conditions, with thermodynamic conditions playing a lesser role. In low PNA years, low-level anomalous cyclonic lows over the Philippines and in the subtropical central Pacific provide significant positive relative vorticity anomalies favorable for TC genesis. Additionally, there is also less vertical wind shear to the north of the Philippines due to enhanced winds at low levels and weaker winds at upper levels.


英文关键词tropical cyclones Pacific-North American pattern
领域气候变化
收录类别SCI-E
WOS记录号WOS:000477616200053
WOS关键词EL-NINO ; PART I ; ARCTIC OSCILLATION ; MAXIMUM INTENSITY ; VARIABILITY ; CIRCULATION ; TAIWAN
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
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/184117
专题气候变化
作者单位1.Minist Educ, Key Lab Mesoscale Severe Weather, Nanjing, Jiangsu, Peoples R China;
2.Nanjing Univ, Sch Atmospher Sci, Nanjing, Jiangsu, Peoples R China;
3.CMA NJU, Joint Ctr Atmospher Radar Res, Nanjing, Peoples R China;
4.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO USA
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GB/T 7714
Song, Jinjie,Klotzbach, Philip J.. Relationship Between the Pacific-North American Pattern and the Frequency of Tropical Cyclones Over the Western North Pacific[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(11):6118-6127.
APA Song, Jinjie,&Klotzbach, Philip J..(2019).Relationship Between the Pacific-North American Pattern and the Frequency of Tropical Cyclones Over the Western North Pacific.GEOPHYSICAL RESEARCH LETTERS,46(11),6118-6127.
MLA Song, Jinjie,et al."Relationship Between the Pacific-North American Pattern and the Frequency of Tropical Cyclones Over the Western North Pacific".GEOPHYSICAL RESEARCH LETTERS 46.11(2019):6118-6127.
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