Dominant modes of geopotential height in the northern hemisphere in summer on interdecadal timescales

Yuxing Yang; Fei Huang; Hong Wang

doi:10.1007/s00343-013-2229-5

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Dominant modes of geopotential height in the northern hemisphere in summer on interdecadal timescales

OriginalPaper | Updated：2023-05-16

- Dominant modes of geopotential height in the northern hemisphere in summer on interdecadal timescales
- Dominant modes of geopotential height in the northern hemisphere in summer on interdecadal timescales
- 海洋湖沼学报（英文） 2013年31卷第5期页码：1120-1128
- Affiliations：
  
  1. Institute of Oceanology Chinese Academy of Science
  2. Physical Oceanography Laboratory and Key Laboratory of Ocean-Atmosphere Interaction and Climate in Universities of Shandong Ocean University of China
- Author bio：
- Funds：
  
  Supported by the National Basic Research Program of China (973 Program) (No. 2010CB951403, 2012CB955604, 2012CB417402, and 2010CB950402) and the National Natural Science Foundation of China (No. 41106018)
- DOI：10.1007/s00343-013-2229-5
  中图分类号：
- 网络首发：2013-09-07，
  
  纸质出版：2013
- Accepted：
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Dominant modes of geopotential height in the northern hemisphere in summer on interdecadal timescales[J]. 海洋湖沼学报（英文）, 2013,31(5):1120-1128.

Yang, Y., Huang, F. & Wang, H. Dominant modes of geopotential height in the northern hemisphere in summer on interdecadal timescales., Chin. J. Ocean. Limnol. 31, 1120–1128 (2013). https://doi.org/10.1007/s00343-013-2229-5
Dominant modes of geopotential height in the northern hemisphere in summer on interdecadal timescales[J]. 海洋湖沼学报（英文）, 2013,31(5):1120-1128. DOI： 10.1007/s00343-013-2229-5.

Yang, Y., Huang, F. & Wang, H. Dominant modes of geopotential height in the northern hemisphere in summer on interdecadal timescales., Chin. J. Ocean. Limnol. 31, 1120–1128 (2013). https://doi.org/10.1007/s00343-013-2229-5 DOI：

摘要

Abstract

Empirical orthogonal function (EOF) analysis is performed on the field of the northern hemisphere geopotential height at 200-hPa using a 54-year (1958–2011) record of summer data on an interdecadal time scale. The first dominant mode

which shows smooth semi-hemispheric variation with maximum action centers in the western hemisphere in the mid-latitudes over the eastern Pacific

North America

and the North Atlantic

is related to global warming. The second mode

which has a pronounced tropical-extratropical alternating pattern with active centers located over the eastern hemisphere from Western Europe across East Asia to the western Pacific

has a close relationship with the Arctic Oscillation. Further analysis results indicate that the two dominant modes show good correlation with the Arctic sea ice concentration (SIC)

with correlation coefficients between these two modes and the first two EOF modes of the Arctic SIC reaching 0.88 and 0.86

respectively.

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Keywords

references

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