The identified 30-50-day variation in the subthermocline current east of Mindanao

Qingye WANG

doi:10.1007/s00343-020-0021-x

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The identified 30-50-day variation in the subthermocline current east of Mindanao

Physics | Updated：2023-04-27

- The identified 30-50-day variation in the subthermocline current east of Mindanao
- The identified 30-50-day variation in the subthermocline current east of Mindanao
- 海洋湖沼学报（英文） 2020年38卷第5期页码：1354-1367
- Affiliations：
  
  1.Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
  2.Qingdao National Laboratory for Marine Science and Technology, Qingdao 266000, China
  3.Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
- Author bio：
  
  WANG Qingye, wangqy@qdio.ac.cn
- Funds：
  
  the National Natural Science Foundation of China (NSFC)(41576014);the National Natural Science Foundation of China (NSFC)(41976011);the National Key Research and Development Program of China(2017YFA0604102);© Chinese Society for Oceanology and Limnology, Science Press, and Springer-Verlag Berlin Heidelberg 2020
- DOI：10.1007/s00343-020-0021-x
  中图分类号：
- 收稿：2020-01-15，
  
  录用：2020-2-12，
  
  网络首发：2020-04-16，
  
  纸质出版：2020-09
- Accepted：
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The identified 30-50-day variation in the subthermocline current east of Mindanao[J]. 海洋湖沼学报（英文）, 2020,38(5):1354-1367.

Qingye WANG. The identified 30-50-day variation in the subthermocline current east of Mindanao[J]. Journal of Oceanology and Limnology, 2020, 38(5): 1354-1367.
The identified 30-50-day variation in the subthermocline current east of Mindanao[J]. 海洋湖沼学报（英文）, 2020,38(5):1354-1367. DOI： 10.1007/s00343-020-0021-x.

Qingye WANG. The identified 30-50-day variation in the subthermocline current east of Mindanao[J]. Journal of Oceanology and Limnology, 2020, 38(5): 1354-1367. DOI： 10.1007/s00343-020-0021-x.

摘要

Abstract

Based on nearly 4 year-long moored velocity measurements at 8°N/127°E and a high-resolution ocean model output

a significant 30-50-day variation in the subthermocline current east of Mindanao was identified for the first time in addition to the 60-80-day variation reported in previous studies. The 30-50-day variation is an important component and it explains considerable variance same as that of the 60-80-day variation. The 30-50-day variation is vertically coherent in the subthermocline current. The standard deviations of the 30-50-day variation in zonal and meridional directions are of comparable

and is about 4.5-5 cm/s. Eddy-tracking analysis indicated that ocean eddies originating from the North Equatorial Current (10°N-11°N) contribute to the 30-50-day and the 60-80-day variations. The 30-50-day eddies propagate faster than the 60-80-day eddies.

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Keywords

references

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