Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-019-04746-9 |
The effect of the equatorial Pacific cold SST bias on simulated ENSO teleconnections to the North Pacific and California | |
Bayr, Tobias1; Domeisen, Daniela I. V.2; Wengel, Christian1 | |
2019-10-01 | |
发表期刊 | CLIMATE DYNAMICS
![]() |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53页码:3771-3789 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Switzerland |
英文摘要 | Precipitation in California is modulated by variability in the tropical Pacific associated with El Nino/Southern Oscillation (ENSO): more rainfall is expected during El Nino episodes, and reduced rainfall during La Nina. It has been suggested that besides the shape and location of the sea surface temperature ( SST) anomaly this remote connection depends on the strength and location of the atmospheric convection response in the tropical Pacific. Here we show in a perturbed physics ensemble of the Kiel Climate Model and CMIP5 models that due to a cold equatorial SST bias many climate models are in a La Nina-like mean state, resulting in a too westward position of the rising branch of the Pacific Walker Circulation. This in turn results in a convective response along the equator during ENSO events that is too far west in comparison to observations. This effect of the equatorial cold SST bias is not restricted to the tropics, moreover it leads to a too westward SLP response in the North Pacific and too westward precipitation response that does not reach California. Further we show that climate models with a reduced equatorial cold SST bias have a more realistic representation of the spatial asymmetry of the teleconnections between El Nino and La Nina. |
英文关键词 | El Nino/Southern Oscillation Sea surface temperature bias North Pacific teleconnections Rainfall over California Perturbed physics ensemble CMIP5 |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000489753900004 |
WOS关键词 | NINO-SOUTHERN-OSCILLATION ; SEA-SURFACE TEMPERATURE ; UNITED-STATES CLIMATE ; EL-NINO ; ATMOSPHERIC CIRCULATION ; AMERICAN TELECONNECTION ; PRECIPITATION ; VARIABILITY ; PREDICTABILITY ; DROUGHT |
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/187193 |
专题 | 气候变化 |
作者单位 | 1.GEOMAR Helmholtz Ctr Ocean Res, Dusternbrooker Weg 20, D-24105 Kiel, Germany; 2.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland |
推荐引用方式 GB/T 7714 | Bayr, Tobias,Domeisen, Daniela I. V.,Wengel, Christian. The effect of the equatorial Pacific cold SST bias on simulated ENSO teleconnections to the North Pacific and California[J]. CLIMATE DYNAMICS,2019,53:3771-3789. |
APA | Bayr, Tobias,Domeisen, Daniela I. V.,&Wengel, Christian.(2019).The effect of the equatorial Pacific cold SST bias on simulated ENSO teleconnections to the North Pacific and California.CLIMATE DYNAMICS,53,3771-3789. |
MLA | Bayr, Tobias,et al."The effect of the equatorial Pacific cold SST bias on simulated ENSO teleconnections to the North Pacific and California".CLIMATE DYNAMICS 53(2019):3771-3789. |
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