Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0152.1 |
Tropical-Extratropical Interactions Associated with East Asian Cold Air Outbreaks. Part I: Interannual Variability | |
Abdillah, Muhammad Rais; Kanno, Yuki; Iwasaki, Toshiki | |
2017-04-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | Interannual variability of winter-mean East Asian cold air outbreaks (CAOs) and its relationship with the tropical climate system during 56 boreal winters (DJF) are investigated. The magnitude of CAO is quantified as winter-mean equatorward cold airmass (CAM) flux below 280-K potential temperature across the 458N latitude. EOF analysis shows that the interannual variation of East Asian CAOs is attributed mainly to the contributions from western and eastern CAOs. In particular, the western and eastern CAOs tend to be remotely forced by La Nina and El Nino events, respectively. The western and eastern CAOs have distinct climate variability. The western CAO, which is enhanced under the climatic anomalies of high pressure over northern Eurasia and low pressure over the western North Pacific, causes negative CAM anomalies over northern Eurasia and positive ones over midlatitude East Asia. In the tropical region, the western CAO negatively correlates with the eastern Pacific and Indian Ocean SST, both of which enhance precipitation over the Maritime Continent. On the other hand, the eastern CAO is enhanced by the strong Aleutian low and results in positive CAM anomalies in the western North Pacific and substantial negative anomalies in western North America. The eastern CAO positively correlates with the tropical SST anomalies and accordingly precipitation anomalies over the central Pacific. ENSO influences western and eastern CAOs through upper and poleward Rossby wave trains excited by convective anomalies over the Maritime Continent and central Pacific, respectively. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399679900015 |
WOS关键词 | NORTHERN HEMISPHERIC WINTER ; GEOPOTENTIAL HEIGHT ; ISENTROPIC ANALYSIS ; ARCTIC OSCILLATION ; ATMOSPHERIC BRIDGE ; MONSOON ; CIRCULATION ; SURGES ; ENSO ; FLOW |
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/19605 |
专题 | 气候变化 |
作者单位 | Tohoku Univ, Grad Sch Sci, Dept Geophys, Sendai, Miyagi, Japan |
推荐引用方式 GB/T 7714 | Abdillah, Muhammad Rais,Kanno, Yuki,Iwasaki, Toshiki. Tropical-Extratropical Interactions Associated with East Asian Cold Air Outbreaks. Part I: Interannual Variability[J]. JOURNAL OF CLIMATE,2017,30(8). |
APA | Abdillah, Muhammad Rais,Kanno, Yuki,&Iwasaki, Toshiki.(2017).Tropical-Extratropical Interactions Associated with East Asian Cold Air Outbreaks. Part I: Interannual Variability.JOURNAL OF CLIMATE,30(8). |
MLA | Abdillah, Muhammad Rais,et al."Tropical-Extratropical Interactions Associated with East Asian Cold Air Outbreaks. Part I: Interannual Variability".JOURNAL OF CLIMATE 30.8(2017). |
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