Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1175/JCLI-D-17-0569.1 |
Global Monsoon Precipitation: Trends, Leading Modes, and Associated Drought and Heat Wave in the Northern Hemisphere | |
Deng, Kaiqiang1; Yang, Song1,2,3; Ting, Mingfang4; Tan, Yaheng1; He, Shan1 | |
通讯作者 | Yang, Song |
来源期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:17页码:6947-6966 |
英文摘要 | Global monsoon precipitation (GMP) brings the majority of water for the local agriculture and ecosystem. The Northern Hemisphere (NH) GMP shows an upward trend over the past decades, while the trend in the Southern Hemisphere (SH) GMP is weak and insignificant. The first three singular value decomposition modes between NH GMP and global SST during boreal summer reflect, in order, the Atlantic multidecadal oscillation (AMO), eastern Pacific (EP) El Nino, and central Pacific (CP) El Nino, when the AMO dominates the NH climate and contributes to the increased trend. However, the first three modes between SH GMP and global SST during boreal winter are revealed as EP El Nino, the AMO, and CP El Nino, when the EP El Nino becomes the most significant driver of the SH GMP, and the AMO-induced rainfall anomalies may cancel out each other within the SH global monsoon domain and thus result in a weak trend. The intensification of NH GMP is proposed to favor the occurrences of droughts and heat waves (HWs) in the midlatitudes through a monsoon-desert-like mechanism. That is, the diabatic heating associated with the monsoonal rainfall may drive large-scale circulation anomalies and trigger intensified subsidence in remote regions. The anomalous descending motions over the midlatitudes are usually accompanied by clear skies, which result in less precipitation and more downward solar radiation, and thus drier and hotter soil conditions that favor the occurrences of droughts and HWs. In comparison, the SH GMP may exert much smaller impacts on the NH extremes in spring and summer, probably because the winter signals associated with SH GMP cannot sufficiently persist into the following seasons. |
英文关键词 | Monsoons Climate variability Trends |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000439919300002 |
WOS关键词 | SEVERITY INDEX ; CLIMATE ; OSCILLATION ; ENSO ; VARIABILITY ; RESPONSES ; PATTERNS ; PROJECT ; IMPACT ; GPCP |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/210770 |
作者单位 | 1.Sun Yat Sen Univ, Sch Atmospher Sci, Guangzhou, Guangdong, Peoples R China; 2.Chinese Acad Meteorol Sci, State Key Lab Sever Weather, Beijing, Peoples R China; 3.Sun Yat Sen Univ, Guangdong Prov Key Lab Climate Change & Nat Disas, Guangzhou, Guangdong, Peoples R China; 4.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA |
推荐引用方式 GB/T 7714 | Deng, Kaiqiang,Yang, Song,Ting, Mingfang,et al. Global Monsoon Precipitation: Trends, Leading Modes, and Associated Drought and Heat Wave in the Northern Hemisphere[J],2018,31(17):6947-6966. |
APA | Deng, Kaiqiang,Yang, Song,Ting, Mingfang,Tan, Yaheng,&He, Shan.(2018).Global Monsoon Precipitation: Trends, Leading Modes, and Associated Drought and Heat Wave in the Northern Hemisphere.JOURNAL OF CLIMATE,31(17),6947-6966. |
MLA | Deng, Kaiqiang,et al."Global Monsoon Precipitation: Trends, Leading Modes, and Associated Drought and Heat Wave in the Northern Hemisphere".JOURNAL OF CLIMATE 31.17(2018):6947-6966. |
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