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DOI | 10.1175/JCLI-D-18-0474.1 |
Teleconnection between the Atlantic Meridional Overturning Circulation and Sea Level in the Mediterranean Sea | |
Volkov, Denis L.1,2; Baringer, Molly2; Smeed, David3; Johns, William4; Landerer, Felix W.5 | |
2019-02-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:3页码:935-955 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England |
英文摘要 | The Mediterranean Sea can be viewed as a "barometer'' of the North Atlantic Ocean, because its sea level responds to oceanic-gyre-scale changes in atmospheric pressure and wind forcing, related to the North Atlantic Oscillation (NAO). The climate of the North Atlantic is influenced by the Atlantic meridional overturning circulation (AMOC) as it transports heat from the South Atlantic toward the subpolar North Atlantic. This study reports on a teleconnection between the AMOC transport measured at 26.58N and the Mediterranean Sea level during 2004-17: a reduced/increased AMOC transport is associated with a higher/lower sea level in the Mediterranean. Processes responsible for this teleconnection are analyzed in detail using available satellite and in situ observations and an atmospheric reanalysis. First, it is shown that onmonthly to interannual time scales theAMOC and sea level are both driven by similar NAO-like atmospheric circulation patterns. During a positive/negative NAO state, stronger/weaker trade winds (i) drive northward/southward anomalies of Ekman transport across 26.58N that directly affect the AMOC and (ii) are associated with westward/eastward winds over the Strait of Gibraltar that force water to flow out of/into theMediterranean Sea and thus change its average sea level. Second, it is demonstrated that interannual changes in theAMOC transport can lead to thermosteric sea level anomalies near the North Atlantic eastern boundary. These anomalies can (i) reach the Strait of Gibraltar and cause sea level changes in the Mediterranean Sea and (ii) represent a mechanism for negative feedback on the AMOC. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000473258300002 |
WOS关键词 | EAST-COAST ; VARIABILITY ; WIND ; MECHANISMS ; TEMPERATURE ; AMERICAN ; IMPACT ; RISE |
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/181275 |
专题 | 气候变化 |
作者单位 | 1.Univ Miami, Cooperat Inst Marine & Atmospher Studies, Coral Gables, FL 33124 USA; 2.NOAA, Atlantic Oceanog & Meteorol Lab, Miami, FL 33149 USA; 3.Natl Oceanog Ctr, Southampton, Hants, England; 4.Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, 4600 Rickenbacker Causeway, Miami, FL 33149 USA; 5.CALTECH, Jet Prop Lab, Pasadena, CA USA |
推荐引用方式 GB/T 7714 | Volkov, Denis L.,Baringer, Molly,Smeed, David,et al. Teleconnection between the Atlantic Meridional Overturning Circulation and Sea Level in the Mediterranean Sea[J]. JOURNAL OF CLIMATE,2019,32(3):935-955. |
APA | Volkov, Denis L.,Baringer, Molly,Smeed, David,Johns, William,&Landerer, Felix W..(2019).Teleconnection between the Atlantic Meridional Overturning Circulation and Sea Level in the Mediterranean Sea.JOURNAL OF CLIMATE,32(3),935-955. |
MLA | Volkov, Denis L.,et al."Teleconnection between the Atlantic Meridional Overturning Circulation and Sea Level in the Mediterranean Sea".JOURNAL OF CLIMATE 32.3(2019):935-955. |
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