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DOI | 10.1007/s00382-019-04946-3 |
Quasi-biweekly oscillation of the Asian monsoon rainfall in late summer and autumn: different types of structure and propagation | |
Yan, Xin1,2; Yang, Song1,2,3; Wang, Teng1; Maloney, Eric D.4; Dong, Shaorou5; Wei, Wei1,2; He, Shan1 | |
2019-12-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53期号:11页码:6611-6628 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | This study contrasts two types of quasi-biweekly oscillations (QBWOs) over tropical Asia in late-summer and autumn (from August to October). Using a tracking method to calculate the frequency of QBWO events over the Asian monsoon region, two types of QBWOs in monsoon rainfall are revealed. One originates from 110 degrees to 140 degrees E and propagates westward to southern China with a notable impact on the regional rainfall, while the other initiates from 160 degrees E to the dateline and does not affect southern China rainfall significantly. Analysis of the vertical structure of moisture flux shows that the moisture source for type 1 events is dominated by the zonal flux component and that for type 2 the meridional flux component. The nature of the moisture flux determines whether the oscillation can propagate across 120 degrees E and affect rainfall over southern China. Results also show that the strength of the South Asian high and the western Pacific subtropical high differently modulate the generation of the two types of QBWOs. Specifically, mutually stronger (weaker) highs favor the first (second) type of the oscillation. A close relationship also exists between the QBWOs and western Pacific sea surface temperature (SST) anomalies, suggesting that the SST anomalies can potentially trigger the QBWOs. |
英文关键词 | Quasi-biweekly oscillation Intraseasonal variability Boreal summer intraseasonal oscillation Asian monsoon |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000494681900007 |
WOS关键词 | WESTERN NORTH PACIFIC ; SOUTH CHINA SEA ; BOREAL SUMMER ; INTRASEASONAL OSCILLATION ; TROPICAL CIRCULATION ; MARITIME CONTINENT ; SCALE SELECTION ; EAST-ASIA ; MJO ; PRECIPITATION |
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/224254 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Sun Yat Sen Univ, Sch Atmospher Sci, 135 West Xingang Rd, Guangzhou 510275, Guangdong, Peoples R China; 2.Sun Yat Sen Univ, Guangdong Prov Key Lab Climate Change & Nat Disas, Guangzhou, Guangdong, Peoples R China; 3.Sun Yat Sen Univ, Inst Earth Climate & Environm Syst, Guangzhou, Guangdong, Peoples R China; 4.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA; 5.CMA Guangdong Prov Meteorol Bur, Guangdong Climate Ctr, Guangzhou, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Yan, Xin,Yang, Song,Wang, Teng,et al. Quasi-biweekly oscillation of the Asian monsoon rainfall in late summer and autumn: different types of structure and propagation[J]. CLIMATE DYNAMICS,2019,53(11):6611-6628. |
APA | Yan, Xin.,Yang, Song.,Wang, Teng.,Maloney, Eric D..,Dong, Shaorou.,...&He, Shan.(2019).Quasi-biweekly oscillation of the Asian monsoon rainfall in late summer and autumn: different types of structure and propagation.CLIMATE DYNAMICS,53(11),6611-6628. |
MLA | Yan, Xin,et al."Quasi-biweekly oscillation of the Asian monsoon rainfall in late summer and autumn: different types of structure and propagation".CLIMATE DYNAMICS 53.11(2019):6611-6628. |
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