Absolute geostrophic currents in global tropical oceans

Yang Lina; Yuan Dongliang

doi:10.1007/s00343-016-5092-3

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Absolute geostrophic currents in global tropical oceans

OriginalPaper | Updated：2023-05-16

- Absolute geostrophic currents in global tropical oceans
- Absolute geostrophic currents in global tropical oceans
- 海洋湖沼学报（英文） 2016年34卷第6期页码：1383-1393
- Affiliations：
  
  1. Institute of Oceanology Chinese Academy of Sciences
  2. University of Chinese Academy of Sciences
  3. Key Laboratory of Ocean Circulation and Waves Chinese Academy of Sciences
  4. Qingdao Collaborative Innovation Center of Marine Science and Technology
- Author bio：
- Funds：
  
  Supported by the National Basic Research Program of China (973 Program) (No. 2012CB956001), the CMA (No. GYHY201306018), the Chinese Academy of Sciences (CAS) (No. XDA11010301), the National Natural Science Foundation of China (Nos. 41176019, 41421005, U1406401), and the State Oceanic Administration (SOA) (No. GASI-03-01-01-05)
- DOI：10.1007/s00343-016-5092-3
  中图分类号：
- 网络首发：2016-03-11，
  
  纸质出版：2016
- Accepted：
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Absolute geostrophic currents in global tropical oceans[J]. 海洋湖沼学报（英文）, 2016,34(6):1383-1393.

Yang, L., Yuan, D. Absolute geostrophic currents in global tropical oceans., Chin. J. Ocean. Limnol. 34, 1383–1393 (2016). https://doi.org/10.1007/s00343-016-5092-3
Absolute geostrophic currents in global tropical oceans[J]. 海洋湖沼学报（英文）, 2016,34(6):1383-1393. DOI： 10.1007/s00343-016-5092-3.

Yang, L., Yuan, D. Absolute geostrophic currents in global tropical oceans., Chin. J. Ocean. Limnol. 34, 1383–1393 (2016). https://doi.org/10.1007/s00343-016-5092-3 DOI：

摘要

Abstract

A set of absolute geostrophic current (AGC) data for the period January 2004 to December 2012 are calculated using the P-vector method based on monthly gridded Argo profiles in the world tropical oceans. The AGCs agree well with altimeter geostrophic currents

Ocean Surface Current Analysis-Real time currents

and moored current-meter measurements at 10-m depth

based on which the classical Sverdrup circulation theory is evaluated. Calculations have shown that errors of wind stress calculation

AGC transport

and depth ranges of vertical integration cannot explain non-Sverdrup transport

which is mainly in the subtropical western ocean basins and equatorial currents near the Equator in each ocean basin (except the North Indian Ocean

where the circulation is dominated by monsoons). The identified non-Sverdrup transport is thereby robust and attributed to the joint effect of baroclinicity and relief of the bottom (JEBAR) and mesoscale eddy nonlinearity.

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references

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