Robust features of Atlantic multi‐decadal variability and its climate impacts
by a sharp rise and fall of the North Atlantic basin‐wide sea surface temperatures (SST) on multi‐decadal time scales. Widespread consequences of these rapid temperature swings were noted in many previous studies. Among these are the drying of Sahel in the 1960–70s and change in the frequency and in...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.229.4136 2023-05-15T17:33:54+02:00 Robust features of Atlantic multi‐decadal variability and its climate impacts Mingfang Ting Yochanan Kushnir Richard Seager Cuihua Li Y. Kushnir R. Seager C. Li Robust Features Of Atlantic The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.229.4136 http://www.ldeo.columbia.edu/res/div/ocp/drought/catskills/Ting_etal_2011.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.229.4136 http://www.ldeo.columbia.edu/res/div/ocp/drought/catskills/Ting_etal_2011.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.ldeo.columbia.edu/res/div/ocp/drought/catskills/Ting_etal_2011.pdf text ftciteseerx 2016-01-07T18:39:27Z by a sharp rise and fall of the North Atlantic basin‐wide sea surface temperatures (SST) on multi‐decadal time scales. Widespread consequences of these rapid temperature swings were noted in many previous studies. Among these are the drying of Sahel in the 1960–70s and change in the frequency and intensity of Atlantic hurricanes on multi‐decadal time scales. Given the short instrumental data records (about a century long) the central question is whether these climate fluctuations are robustly linked with the AMV and to what extent are these connections subject to changes in a changing climate. Here we address this issue by using the CMIP3 simulations for the 20th, 21st, and pre‐industrial eras with 23 IPCC models. While models tend to produce AMV of shorter time scales and less periodic than suggested by the observations, the spatial structures of the SST anomaly patterns, and their association with worldwide precipitation, are surprisingly similar between models (with differing external forcing) and observations. Our results confirm the strong link between AMV and Sahel rainfall and suggest a clear physical mechanism for the linkage in terms of meridional shifts of the Atlantic ITCZ. The results also help clarify influences that may not be robust, such as the impacts Text North Atlantic Unknown |
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by a sharp rise and fall of the North Atlantic basin‐wide sea surface temperatures (SST) on multi‐decadal time scales. Widespread consequences of these rapid temperature swings were noted in many previous studies. Among these are the drying of Sahel in the 1960–70s and change in the frequency and intensity of Atlantic hurricanes on multi‐decadal time scales. Given the short instrumental data records (about a century long) the central question is whether these climate fluctuations are robustly linked with the AMV and to what extent are these connections subject to changes in a changing climate. Here we address this issue by using the CMIP3 simulations for the 20th, 21st, and pre‐industrial eras with 23 IPCC models. While models tend to produce AMV of shorter time scales and less periodic than suggested by the observations, the spatial structures of the SST anomaly patterns, and their association with worldwide precipitation, are surprisingly similar between models (with differing external forcing) and observations. Our results confirm the strong link between AMV and Sahel rainfall and suggest a clear physical mechanism for the linkage in terms of meridional shifts of the Atlantic ITCZ. The results also help clarify influences that may not be robust, such as the impacts |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Mingfang Ting Yochanan Kushnir Richard Seager Cuihua Li Y. Kushnir R. Seager C. Li Robust Features Of Atlantic |
spellingShingle |
Mingfang Ting Yochanan Kushnir Richard Seager Cuihua Li Y. Kushnir R. Seager C. Li Robust Features Of Atlantic Robust features of Atlantic multi‐decadal variability and its climate impacts |
author_facet |
Mingfang Ting Yochanan Kushnir Richard Seager Cuihua Li Y. Kushnir R. Seager C. Li Robust Features Of Atlantic |
author_sort |
Mingfang Ting |
title |
Robust features of Atlantic multi‐decadal variability and its climate impacts |
title_short |
Robust features of Atlantic multi‐decadal variability and its climate impacts |
title_full |
Robust features of Atlantic multi‐decadal variability and its climate impacts |
title_fullStr |
Robust features of Atlantic multi‐decadal variability and its climate impacts |
title_full_unstemmed |
Robust features of Atlantic multi‐decadal variability and its climate impacts |
title_sort |
robust features of atlantic multi‐decadal variability and its climate impacts |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.229.4136 http://www.ldeo.columbia.edu/res/div/ocp/drought/catskills/Ting_etal_2011.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://www.ldeo.columbia.edu/res/div/ocp/drought/catskills/Ting_etal_2011.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.229.4136 http://www.ldeo.columbia.edu/res/div/ocp/drought/catskills/Ting_etal_2011.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766132558793277440 |