Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-019-05020-8 |
Asymmetric impact of Central Pacific ENSO on the reduction of tropical cyclone genesis frequency over the western North Pacific since the late 1990s | |
Kim, Han-Kyoung1; Seo, Kyong-Hwan2; Yeh, Sang-Wook3; Kang, Nam-Young4,5; Moon, Byung-Kwon1 | |
2019-11-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | South Korea |
英文摘要 | Tropical cyclone (TC) genesis frequency over the western North Pacific (WNP) is significantly reduced since the late 1990s, coinciding with a Pacific decadal oscillation (PDO) phase transition from positive to negative. In this study, the underlying mechanism for this change is investigated through analysis of asymmetric central Pacific (CP) El Nino-Southern Oscillation (ENSO) properties induced by the negative PDO phase. Our results suggest that the significant reduction is caused by asymmetric CP ENSO properties, in which the CP La Nina is more frequent than the CP El Nino during negative PDO phases; furthermore, stronger CP La Nina occurs during a negative PDO phase than during a positive PDO phase. CP La Nina (El Nino) events generate an anticyclonic (cyclonic) Rossby wave response over the eastern WNP, leading to a significant decrease (increase) in eastern WNP TC genesis. Therefore, more frequent CP La Nina events and the less frequent CP El Nino events reduce the eastern WNP mean TC genesis frequency during a negative PDO phase. In addition, stronger CP La Nina events during a negative PDO phase reinforce the reduction in eastern WNP TC genesis. The dependency of CP ENSO properties on the PDO phase is confirmed using a long-term climate model simulation, which supports our observational results. Our results will also improve understanding of TC in other basins, since both PDO and CP ENSO variability influence global dynamics. |
英文关键词 | Tropical cyclone Pacific decadal oscillation Central Pacific El Nino-Southern oscillation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000493640000002 |
WOS关键词 | DECADAL OSCILLATION ; MODULATION ; EVENTS ; TRACKS |
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/187967 |
专题 | 气候变化 |
作者单位 | 1.Jeonbuk Natl Univ, Inst Fus Sci, Div Sci Educ, Jeonju, South Korea; 2.Pusan Natl Univ, Dept Atmospher Sci, Div Earth Environm Syst, Busan, South Korea; 3.Hanyang Univ, ERICA, Marine Sci & Convergent Technol, Ansan, South Korea; 4.Korea Meteorol Adm, Natl Typhoon Ctr, Jeju, South Korea; 5.Kyungpook Natl Univ, Coll Social Sci, Dept Geog, Daegu, South Korea |
推荐引用方式 GB/T 7714 | Kim, Han-Kyoung,Seo, Kyong-Hwan,Yeh, Sang-Wook,et al. Asymmetric impact of Central Pacific ENSO on the reduction of tropical cyclone genesis frequency over the western North Pacific since the late 1990s[J]. CLIMATE DYNAMICS,2019. |
APA | Kim, Han-Kyoung,Seo, Kyong-Hwan,Yeh, Sang-Wook,Kang, Nam-Young,&Moon, Byung-Kwon.(2019).Asymmetric impact of Central Pacific ENSO on the reduction of tropical cyclone genesis frequency over the western North Pacific since the late 1990s.CLIMATE DYNAMICS. |
MLA | Kim, Han-Kyoung,et al."Asymmetric impact of Central Pacific ENSO on the reduction of tropical cyclone genesis frequency over the western North Pacific since the late 1990s".CLIMATE DYNAMICS (2019). |
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