UntitledSource: Journal of Climate:;2017:;volume( 030 ):;issue: 010::page 3771Author:Chen, Shangfeng;Wu, Renguang
DOI: 10.1175/JCLI-D-16-0477.1Publisher: American Meteorological Society
Abstract: AbstractThis study investigates interdecadal changes in the relationship between interannual variations of boreal spring sea surface temperature (SST) in the North Atlantic and surface air temperature (SAT) over the mid-to-high latitudes of Eurasia during 1948?2014. Analyses show that the connection between the spring North Atlantic tripole SST anomaly pattern and the Eurasian SAT anomalies has experienced marked interdecadal shifts around the early 1970s and mid-1990s. The connection is strong during 1954?72 and 1996?2014 but weak during 1973?91. A diagnosis indicates that interdecadal changes in the connection between the North Atlantic SST and Eurasian SAT variations are associated with changes in atmospheric circulation anomalies over Eurasia induced by the North Atlantic tripole SST anomaly pattern. Further analyses suggest that changes in atmospheric circulation anomalies over Eurasia are related to changes in the position of atmospheric heating anomalies over the North Atlantic, which may be due to the change in mean SST. Marked atmospheric heating anomalies appear over the tropical western North Atlantic during 1954?72 and 1996?2014 but over the subtropical central-eastern North Atlantic during 1973?91. Barotropic model experiments confirm that different background flows may also contribute to changes in anomalous atmospheric circulation over Eurasia.
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| contributor author | Chen, Shangfeng;Wu, Renguang | |
| date accessioned | 2018-01-03T11:00:43Z | |
| date available | 2018-01-03T11:00:43Z | |
| date copyright | 2/20/2017 12:00:00 AM | |
| date issued | 2017 | |
| identifier other | jcli-d-16-0477.1.pdf | |
| identifier uri | http://138.201.223.254:8080/yetl1/handle/yetl/4246009 | |
| description abstract | AbstractThis study investigates interdecadal changes in the relationship between interannual variations of boreal spring sea surface temperature (SST) in the North Atlantic and surface air temperature (SAT) over the mid-to-high latitudes of Eurasia during 1948?2014. Analyses show that the connection between the spring North Atlantic tripole SST anomaly pattern and the Eurasian SAT anomalies has experienced marked interdecadal shifts around the early 1970s and mid-1990s. The connection is strong during 1954?72 and 1996?2014 but weak during 1973?91. A diagnosis indicates that interdecadal changes in the connection between the North Atlantic SST and Eurasian SAT variations are associated with changes in atmospheric circulation anomalies over Eurasia induced by the North Atlantic tripole SST anomaly pattern. Further analyses suggest that changes in atmospheric circulation anomalies over Eurasia are related to changes in the position of atmospheric heating anomalies over the North Atlantic, which may be due to the change in mean SST. Marked atmospheric heating anomalies appear over the tropical western North Atlantic during 1954?72 and 1996?2014 but over the subtropical central-eastern North Atlantic during 1973?91. Barotropic model experiments confirm that different background flows may also contribute to changes in anomalous atmospheric circulation over Eurasia. | |
| publisher | American Meteorological Society | |
| type | Journal Paper | |
| journal volume | 30 | |
| journal issue | 10 | |
| journal title | Journal of Climate | |
| identifier doi | 10.1175/JCLI-D-16-0477.1 | |
| journal fristpage | 3771 | |
| journal lastpage | 3787 | |
| tree | Journal of Climate:;2017:;volume( 030 ):;issue: 010 | |
| contenttype | Fulltext |