globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-015-2643-9
Scopus记录号: 2-s2.0-84957435637
论文题名:
NAO and PNA influences on winter temperature and precipitation over the eastern United States in CMIP5 GCMs
作者: Ning L.; Bradley R.S.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 46, 期:2017-03-04
起始页码: 1257
结束页码: 1276
语种: 英语
英文关键词: CMIP5 ; NAO ; PNA ; Regional climate ; Teleconnection
英文摘要: The historical and future relationships between two major patterns of large-scale climate variability, the North Atlantic Oscillation (NAO) and the Pacific/North America pattern (PNA), and the regional winter temperature and precipitation over the eastern United States were systemically evaluated by using 17 general circulation models (GCMs) from the Coupled Model Intercomparison Project phase 5. Empirical orthogonal function analysis was used to define the NAO and PNA. The observed spatial patterns of NAO and PNA can be reproduced by all the GCMs with slight differences in locations of the centers of action and their average magnitudes. For the correlations with regional winter temperature and precipitation over the eastern US, GCMs perform best in capturing the relationships between the NAO and winter temperature, and between the PNA and winter temperature and precipitation. The differences between the observed and simulated relationships are mainly due to displacements of the simulated NAO and PNA centers of action and differences in their magnitudes. In simulations of the future, both NAO and PNA magnitudes increase, with uncertainties related to the model response and emission scenarios. When assessing the influences of future NAO/PNA changes on regional winter temperature, it is found that the main factors are related to changes in the magnitude of the NAO Azores center and total NAO magnitude, and the longitude of the PNA center over northwestern North America, total PNA magnitude, and the magnitude of the PNA center over the southeastern US. © 2015, Springer-Verlag Berlin Heidelberg.
资助项目: NSFC, National Natural Science Foundation of China ; USGS, National Natural Science Foundation of China ; CAS, National Natural Science Foundation of China ; NOAA, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53833
Appears in Collections:过去全球变化的重建

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作者单位: Key Laboratory of Virtual Geographic Environment of Ministry of Education, School of Geography Science, Jiangsu Key Laboratory for Numerical Simulation of Large Scale Complex System, School of Mathematical Science, Nanjing Normal University, Nanjing, China; Department of Geosciences, Northeast Climate Science Center, Climate System Research Center, University of Massachusetts, Amherst, MA, United States; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, China

Recommended Citation:
Ning L.,Bradley R.S.. NAO and PNA influences on winter temperature and precipitation over the eastern United States in CMIP5 GCMs[J]. Climate Dynamics,2016-01-01,46(2017-03-04)
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