| The Role of the Solar Cycle in the Relationship Between the North Atlantic Oscillation and Northern Hemisphere Surface Temperatures |
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| 作者姓名： | Laura DE LA TORRE Luis GIMENO Juan Antonio A\~NEL Raquel NIETO |
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| 作者单位： | Universidad de Vigo, Facultad de Ciencias de Ourense, 32004, Ourense, Spain |
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| 基金项目： | Acknowledgements. We would like to thank the helpful comments of the reviewers. |
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| 摘 要： | The North Atlantic Oscillation （NAO） is one of the leading modes of climate variability in the Northern Hemisphere. It has been shown that it clearly relates to changes in meteorological variables, such as surface temperature, at hemispherical scales. However, recent studies have revealed that the NAO spatial pattern also depends upon solar forcing. Therefore, its effects on meteorological variables must vary depending upon this factor. Moreover, it could be that the Sun affects climate through variability patterns, a hypothesis that is the focus of this study. We find that the relationship between the NAO/AO and hemispheric temperature varies depending upon solar activity. The results show a positive significant correlation only when solar activity is high. Also, the results support the idea that solar activity influences tropospheric climate fluctuations in the Northern Hemisphere via the fluctuations of the stratospheric polar vortex .
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| 关 键 词： | 太阳活动周期 北大西洋涛动 北半球 地面温度 相互关系 |
| 收稿时间： | 2005-11-07 |
| 修稿时间： | 2006-09-11 |
The Role of the Solar Cycle in the Relationship Between the North Atlantic Oscillation and Northern Hemisphere Surface Temperatures |
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| Laura DE LA TORRE,Luis GIMENO,Juan Antonio A\NEL,Raquel NIETO.The Role of the Solar Cycle in the Relationship Between the North Atlantic Oscillation and Northern Hemisphere Surface Temperatures[J].Advances in Atmospheric Sciences,2007,24(2):191-198. |
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| Authors: | Laura DE LA TORRE Luis GIMENO Juan Antonio A\NEL and Raquel NIETO |
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| Institution: | Universidad de Vigo, Facultad de Ciencias de Ourense, 32004, Ourense, Spain,Universidad de Vigo, Facultad de Ciencias de Ourense, 32004, Ourense, Spain,Universidad de Vigo, Facultad de Ciencias de Ourense, 32004, Ourense, Spain,Universidad de Vigo, Facultad de Ciencias de Ourense, 32004, Ourense, Spain |
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| Abstract: | The North Atlantic Oscillation (NAO) is one of the leading modes of climate variability in the Northern
Hemisphere. It has been shown that it clearly relates to changes in meteorological variables, such as surface temperature,
at hemispherical scales. However, recent studies have revealed that the NAO spatial pattern also depends upon solar
forcing. Therefore, its effects on meteorological variables must vary depending upon this factor. Moreover, it could be
that the Sun affects climate through variability patterns, a hypothesis that is the focus of this study. We find that the
relationship between the NAO/AO and hemispheric temperature varies depending upon solar activity. The results show a
positive significant correlation only when solar activity is high. Also, the results support the idea that solar activity
influences tropospheric climate fluctuations in the Northern Hemisphere via the fluctuations of the stratospheric polar
vortex. |
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| Keywords: | solar activity North Atlantic Oscillation Arctic Oscillation Northern Hemisphere surface temperature |
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