Interpretation of sea surface wind interannual vector EOFs over the China seas

Zhao Xixi; Hou Yijun; Qi Peng

doi:10.1007/s00343-010-9253-5

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Interpretation of sea surface wind interannual vector EOFs over the China seas

OriginalPaper | Updated：2023-05-16

- Interpretation of sea surface wind interannual vector EOFs over the China seas
- Interpretation of sea surface wind interannual vector EOFs over the China seas
- 海洋湖沼学报（英文） 2010年28卷第2期页码：340-343
- Affiliations：
  
  1. Ocean University of China
  2. Institute of Oceanology Chinese Academy of Sciences
- Author bio：
- Funds：
  
  Supported by the Knowledge Innovation Program of Chinese Academy of Sciences (Nos. KZCX1-YW-12, KZCXZ-YW201) and National Natural Science Foundation of China (No. 90411013).
- DOI：10.1007/s00343-010-9253-5
  中图分类号：
- 网络首发：2010-03-20，
  
  纸质出版：2010
- Accepted：
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Interpretation of sea surface wind interannual vector EOFs over the China seas[J]. 海洋湖沼学报（英文）, 2010,28(2):340-343.

Zhao, X., Hou, Y. & Qi, P. Interpretation of sea surface wind interannual vector EOFs over the China seas., Chin. J. Ocean. Limnol. 28, 340–343 (2010). https://doi.org/10.1007/s00343-010-9253-5
Interpretation of sea surface wind interannual vector EOFs over the China seas[J]. 海洋湖沼学报（英文）, 2010,28(2):340-343. DOI： 10.1007/s00343-010-9253-5.

Zhao, X., Hou, Y. & Qi, P. Interpretation of sea surface wind interannual vector EOFs over the China seas., Chin. J. Ocean. Limnol. 28, 340–343 (2010). https://doi.org/10.1007/s00343-010-9253-5 DOI：

摘要

Abstract

Using interpolation and averaging methods

we analyzed the sea surface wind data obtained from December 1992 to November 2008 by the scatterometers ERS-1

ERS-2

and QuikSCAT in the area of 2°N–39 °N

105°E–130°E

and we reported the monthly mean distributions of the sea surface wind field. A vector empirical orthogonal function (VEOF) method was employed to study the data and three temporal and spatial patterns were obtained. The first interannual VEOF accounts for 26% of the interannual variance and displays the interannual variability of the East Asian monsoon. The second interannual VEOF accounts for 21% of the variance and reflects the response of China sea winds to El Niño events. The temporal mode of VEOF-2 is in good agreement with the curve of the Niño 3.4 index with a four-month lag. The spatial mode of VEOF-2 indicates that four months after an El Niño event

the southwesterly anomalous winds over the northern South China Sea

the East China Sea

the Yellow Sea

and the Bohai Sea can weaken the prevailing winds in winter

and can strengthen the prevailing winds in summer. The third interannual VEOF accounts for 10% of the variance and also reflects the influence of the ENSO events to China Sea winds. The temporal mode of VEOF-3 is similar to the curve of the Southern Oscillation Index. The spatial mode of VEOF-3 shows that the northeasterly anomalous winds over the South China Sea and the southern part of the East China Sea can weaken the prevailing winds

and southwesterly anomalous winds over the northern part of the East China Sea

the Yellow Sea

and the Bohai Sea can strengthen the prevailing winds when El Niño occurs in winter. If El Niño happens in summer

the reverse is true.

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Keywords

references

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Huang R H, Chen W, Yang B L et al. 2004. Recent advances in studies of the interaction between the East Asian winter and summer monsoons and ENSO cycle. Advances in Atmospheric Sciences, 21(3): 407–424.

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Zhao X X, Hou Y J, Qi P. 2007. Study on temporal and spatial characteristics of sea surface wind in China seas. High Technology Letters, 17(5): 523–528. (in Chinese with English abstract)

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