Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-18-0351.1 |
Interdecadal Change in the Intensity of Interannual Variation of Spring Precipitation over Southern China and Possible Reasons | |
Xu, Chao1,2; Qiao, Yunting1,3; Jian, Maoqiu1,3 | |
2019-09-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:18页码:5865-5881 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The intensity of interannual variation of spring precipitation over southern China during 1979-2014 and possible reasons for it are investigated in this paper. There is a significant interdecadal change in the intensity of interannual variation of spring precipitation over southern China around 1995/96. The intensity of interannual variation of spring rainfall over South China is stronger during 1979-95 than that during 1996-2014. The possible reason may be the larger amplitude of the sea surface temperature anomaly (SSTA) in the western Pacific Ocean (WP) before 1995/96. The cooler (warmer) SSTA in WP may trigger an abnormal local anticyclone (cyclone) at lower levels. The anomalous southwesterly (northeasterly) flow at the northwestern flank of the WP anticyclone (cyclone) covers South China, transporting more (less) moisture to South China. Meanwhile, the anomalous winds converge (diverge) in South China at lower levels and diverge (converge) at upper levels, which causes the anomalous ascent (descent) to enhance (reduce) the precipitation over there. However, during 1996-2014, the intensity of interannual variation of spring rainfall over the middle and lower reaches of the Yangtze River valley becomes much stronger than that during 1979-95, which is related to the intensified interannual variation of the atmospheric circulation in the middle and high latitudes over Eurasia. The weak (strong) Siberian high and East Asian trough may reduce (enhance) the northerly wind from the middle and high latitudes. As a result, the middle and lower reaches of the Yangtze River valley are subjected to the anomalous southerly wind, favoring more (less) precipitation over there. |
英文关键词 | Atmosphere-land interaction Atmospheric circulation Precipitation Rainfall Sea surface temperature |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000481422200002 |
WOS关键词 | ASIAN SUMMER RAINFALL ; VARIABILITY |
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/186774 |
专题 | 气候变化 |
作者单位 | 1.Sun Yat Sen Univ, Sch Atmospher Sci, Ctr Monsoon & Environm Res, Guangdong Prov Key Lab Climate Change & Nat Disas, Guangzhou, Guangdong, Peoples R China; 2.Three Gorges New Energy Shantou Power Generat Co, Shantou, Peoples R China; 3.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, Chao,Qiao, Yunting,Jian, Maoqiu. Interdecadal Change in the Intensity of Interannual Variation of Spring Precipitation over Southern China and Possible Reasons[J]. JOURNAL OF CLIMATE,2019,32(18):5865-5881. |
APA | Xu, Chao,Qiao, Yunting,&Jian, Maoqiu.(2019).Interdecadal Change in the Intensity of Interannual Variation of Spring Precipitation over Southern China and Possible Reasons.JOURNAL OF CLIMATE,32(18),5865-5881. |
MLA | Xu, Chao,et al."Interdecadal Change in the Intensity of Interannual Variation of Spring Precipitation over Southern China and Possible Reasons".JOURNAL OF CLIMATE 32.18(2019):5865-5881. |
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