Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.4718 |
Decadal winter drought in Southwest China since the late 1990s and its atmospheric teleconnection | |
Tan, Hongjian1,2,3; Cai, Rongshuo1,2; Chen, Jilong2; Huang, Ronghui2 | |
2017 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
![]() |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2017 |
卷号 | 37期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The extreme drought in Southwest China (SWC) during the winter 2009/2010 brought catastrophic losses to the state and people. In this article, evidence has been presented that this drought event was not a single one but part of a decade-long drying period after 2000. Based on observed data from meteorological stations, we identified two distinct modes of winter precipitation in SWC: one is spatially in-phase change pattern and the other is east-west dipole pattern, both of which experienced a sharp decadal decrease since the late 1990s. The two modes are closely linked to two atmospheric circulation patterns induced by Arctic Oscillation (AO) and El Nino, respectively. The sustained precipitation deficit in SWC after 2000 was associated with the anomalous atmospheric circulation patterns mainly caused by the decadal transition of AO towards its negative phases and frequent El Nino, especially the central Pacific El Nino. The model experiments forced by sea surface temperature anomaly patterns in the North Atlantic (NA) and tropical Pacific (TP), respectively, could robustly reproduce precipitation anomaly in SWC and large-scale circulation pattern. The NA SST could excite a series of quasi-stationary wave trains, which propagate eastward to the south of the Himalayas, similar to the AO-related teleconnection. The SWC is just beneath the anti-cyclonic circulation anomaly with dry conditions. In the TP experiment, the simulated ascending motion locates over the central Pacific, while the anomalous descending branch of the western Walker cell appears over the SWC, being not conducive to the formation of precipitation. |
英文关键词 | drought in Southwest China Arctic Oscillation central Pacific El Nino |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000392415700034 |
WOS关键词 | SEA-SURFACE TEMPERATURE ; EL-NINO MODOKI ; EXTREME DROUGHT ; PACIFIC ; PRECIPITATION ; ENSO ; VARIABILITY ; IMPACTS ; AUTUMN ; OSCILLATION |
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/36599 |
专题 | 气候变化 |
作者单位 | 1.State Ocean Adm, Inst Oceanog 3, Key Lab Global Change & Marine Atmospher Chem, 178 Daxue Rd, Xiamen 361005, Peoples R China; 2.Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, Beijing, Peoples R China; 3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Tan, Hongjian,Cai, Rongshuo,Chen, Jilong,et al. Decadal winter drought in Southwest China since the late 1990s and its atmospheric teleconnection[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(1). |
APA | Tan, Hongjian,Cai, Rongshuo,Chen, Jilong,&Huang, Ronghui.(2017).Decadal winter drought in Southwest China since the late 1990s and its atmospheric teleconnection.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(1). |
MLA | Tan, Hongjian,et al."Decadal winter drought in Southwest China since the late 1990s and its atmospheric teleconnection".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.1(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论