Relationship between oceanic heat content and sea surface height on interannual time scale

Linlin Zhang; Che Sun; Dunxin Hu

doi:10.1007/s00343-012-1247-z

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Relationship between oceanic heat content and sea surface height on interannual time scale

Updated：2023-05-16

- Relationship between oceanic heat content and sea surface height on interannual time scale
- Journal of Oceanology and Limnology Vol. 30, Issue 6, Pages: 1026-1032(2012)
- Affiliations：
  
  1. Institute of Oceanology Chinese Academy of Sciences
  2. Key Laboratory of Ocean Circulation and Waves Chinese Academy of Sciences
- Author bio：
- Funds：
- DOI：10.1007/s00343-012-1247-z
  CLC：
- Online First：17 November 2012，
  
  Published：2012
- Accepted：
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Zhang, L., Sun, C. & Hu, D. Relationship between oceanic heat content and sea surface height on interannual time scale., Chin. J. Ocean. Limnol. 30, 1026–1032 (2012). https://doi.org/10.1007/s00343-012-1247-z
DOI：

Zhang, L., Sun, C. & Hu, D. Relationship between oceanic heat content and sea surface height on interannual time scale., Chin. J. Ocean. Limnol. 30, 1026–1032 (2012). https://doi.org/10.1007/s00343-012-1247-z DOI：

摘要

Abstract

The relationship between heat content and sea surface height (SSH) in the global ocean on the interannual time scale is examined with satellite altimeter measurements

historical hydrography

and model assimilation outputs. Results show that correlation between altimetric SSH and heat content in the upper 700 m calculated from Ishii data is geographically nonuniform. In the tropical ocean

heat content and SSH are strongly correlated and exhibit nearly the same interannual variations. In the polar ocean

their correlation is relatively weak. Further analysis with Simple Ocean Data Assimilation outputs shows that such nonuniform distribution is not from dynamical origin but from the limited integral depth selected to calculate heat content. The integral depth of 700 m is inadequate to capture variation of the deep main thermocline in the polar region. The halosteric effect also contributes to the nonuniform pattern of correlation

because saline contraction becomes significant in the polar ocean owing to low temperature.

关键词

Keywords

references

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