| Changes of Air–sea Coupling in the North Atlantic over the 20th Century |
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| 作者姓名： | YANG Yun WU Lixin |
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| 作者单位： | Physical Oceanography Laboratory, Ocean University of China |
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| 基金项目： | supported by a National Natural Science Foundation of China (NSFC) Innovation Team Project (Grant No. 40921004);the Fundamental Research Funds for Central Universities (Grant No. 0900841261005) |
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| 摘 要： | Changes of air–sea coupling in the North Atlantic Ocean over the 20 th century are investigated using reanalysis data,climate model simulations, and observational data. It is found that the ocean-to-atmosphere feedback over the North Atlantic is significantly intensified in the second half of the 20 th century. This coupled feedback is characterized by the association between the summer North Atlantic Horseshoe(NAH) SST anomalies and the following winter North Atlantic Oscillation(NAO). The intensification is likely associated with the enhancement of the North Atlantic storm tracks as well as the NAH SST anomalies. Our study also reveals that most IPCC AR4 climate models fail to capture the observed NAO/NAH coupled feedback.
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| 关 键 词： | air–sea coupling climate change North Atlantic Ocean 20th Century |
Changes of air-sea coupling in the North Atlantic over the 20th century |
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| YANG Yun,WU Lixin.Changes of air-sea coupling in the North Atlantic over the 20th century[J].Advances in Atmospheric Sciences,2015,32(4):445-456. |
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| Authors: | Yun Yang Lixin Wu |
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| Affiliation: | Physical Oceanography Laboratory,Ocean University of China,Qingdao 266100 |
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| Abstract: | Changes of air-sea coupling in the North Atlantic Ocean over the 20th century are investigated using reanalysis data, climate model simulations, and observational data. It is found that the ocean-to-atmosphere feedback over the North Atlantic is significantly intensified in the second half of the 20th century. This coupled feedback is characterized by the association between the summer North Atlantic Horseshoe (NAH) SST anomalies and the following winter North Atlantic Oscillation (NAO). The intensification is likely associated with the enhancement of the North Atlantic storm tracks as well as the NAH SST anomalies. Our study also reveals that most IPCC AR4 climate models fail to capture the observed NAO/NAH coupled feedback. |
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| Keywords: | air-sea coupling climate change North Atlantic Ocean 20th Century |
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