Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-18-0846.1 |
Relationships among Intermodel Spread and Biases in Tropical Atlantic Sea Surface Temperatures | |
Mohino, Elsa1; Rodriguez-fonseca, Belen1,2; Mechoso, C. Roberto3; Losada, Teresa1; Polo, Irene1,4 | |
2019-06-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:12页码:3615-3635 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain; USA; England |
英文摘要 | State-of-the-art general circulation models show important systematic errors in their simulation of sea surface temperatures (SST), especially in the tropical Atlantic. In this work the spread in the simulation of climatological SST in the tropical Atlantic by 24 CMIP5 models is examined, and its relationship with the mean systematic biases in the region is explored. The modes of intermodel variability are estimated by applying principal component (PC) analysis to the SSTs in the region 70 degrees W-20 degrees E, 20 degrees S-20 degrees N. The intermodel variability is approximately explained by the first three modes. The first mode is related to warmer SSTs in the basin, shows worldwide connections with same-signed loads over most of the tropics, and is connected with lower low cloud cover over the eastern parts of the subtropical oceans. The second mode is restricted to the Atlantic, where it shows negative and positive loads to the north and south of the equator, respectively, and is connected to a too weak Atlantic meridional overturning circulation (AMOC). The third mode is related to the double intertropical convergence zone bias in the Pacific and to an interhemispheric asymmetry in the net radiation at the top of the atmosphere. The structure of the second mode is closer to the mean bias than that of the others in the tropical Atlantic, suggesting that model difficulties with the AMOC contribute to the regional biases. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000469236300001 |
WOS关键词 | MERIDIONAL OVERTURNING CIRCULATION ; EQUATORIAL ATLANTIC ; NORTH-ATLANTIC ; SST BIASES ; MODEL BIASES ; WARM BIAS ; CMIP5 ; PACIFIC ; CLIMATE ; 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/183862 |
专题 | 气候变化 |
作者单位 | 1.Univ Complutense Madrid, Dept Phys Earth & Astrophys, Madrid, Spain; 2.Inst Geociencias, Madrid, Spain; 3.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA; 4.Univ Reading, Dept Meteorol, Reading, Berks, England |
推荐引用方式 GB/T 7714 | Mohino, Elsa,Rodriguez-fonseca, Belen,Mechoso, C. Roberto,et al. Relationships among Intermodel Spread and Biases in Tropical Atlantic Sea Surface Temperatures[J]. JOURNAL OF CLIMATE,2019,32(12):3615-3635. |
APA | Mohino, Elsa,Rodriguez-fonseca, Belen,Mechoso, C. Roberto,Losada, Teresa,&Polo, Irene.(2019).Relationships among Intermodel Spread and Biases in Tropical Atlantic Sea Surface Temperatures.JOURNAL OF CLIMATE,32(12),3615-3635. |
MLA | Mohino, Elsa,et al."Relationships among Intermodel Spread and Biases in Tropical Atlantic Sea Surface Temperatures".JOURNAL OF CLIMATE 32.12(2019):3615-3635. |
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