Evaluation of the China Ocean Reanalysis (CORA) in the South China Sea

Maoting FAN; Huizan WANG; Weimin ZHANG; Guijun HAN; Pinqiang WANG

doi:10.1007/s00343-019-9146-1

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Evaluation of the China Ocean Reanalysis (CORA) in the South China Sea

Special Section on Indo-Pac Project | Updated：2023-04-27

- Evaluation of the China Ocean Reanalysis (CORA) in the South China Sea
- Journal of Oceanology and Limnology Vol. 38, Issue 6, Pages: 1640-1653(2020)
- Affiliations：
  
  1.College of Meteorology and Oceanography, National University of Defense Technology, Changsha 410073, China
  2.Key Laboratory of Software Engineering for Complex Systems, National University of Defense Technology, Changsha 410073, China
  3.School of Marine Science and Technology, Tianjin University, Tianjin 300072, China
- Author bio：
  
  WANG Huizan, wanghuizan@126.com
- Funds：
- DOI：10.1007/s00343-019-9146-1
  CLC：
- Received：06 June 2019，
  
  Accepted：09 August 2019，
  
  Online First：19 September 2019，
  
  Published：2020-11
- Accepted：
Scan QR Code
Maoting FAN, Huizan WANG, Weimin ZHANG, et al. Evaluation of the China Ocean Reanalysis (CORA) in the South China Sea[J]. Journal of Oceanology and Limnology, 2020, 38(6): 1640-1653.
DOI：

Maoting FAN, Huizan WANG, Weimin ZHANG, et al. Evaluation of the China Ocean Reanalysis (CORA) in the South China Sea[J]. Journal of Oceanology and Limnology, 2020, 38(6): 1640-1653. DOI： 10.1007/s00343-019-9146-1.

摘要

Abstract

The daily regional reanalysis product of the China Ocean Reanalysis (CORA) product was released in website in 2018. Using in situ observational data including Argo profiling floats

drifters

and cruise data

the performance of CORA in the South China Sea in terms of temperature

salinity

current and mixed layer depths is evaluated based on timescale (seasonal and interannual) and spatial distribution characteristics. The CORA temperature

salinity

and mixed layer depth show certain seasonal and interannual variations. In 50-400 m depth in the SCS

the CORA temperature is colder in winter and warmer in summer and autumn. In 0-150 m in the SCS

the CORA salinity is higher in most time of the year. However

in the second half of the year

the salinity is slightly weaker in 100-150 m depth. In most years

the CORA mixed layer depths tend to be shallower

and in season

shallower in winter and deeper in summer. In spatial distribution

the closer the area is to the coast

the greater the CORA errors would be. The CORA temperature is colder in the western side and warmer in the eastern side

resulting in a weaker SCS western boundary current (SCSwbc). In most areas

the CORA mixed layer depths are shallower. In the area close to the coast

the CORA mixed layer depths change rapidly

and the deviations in the mixed layer depths are larger. In the central SCS

the CORA mixed layer depths change slowly

and the deviations in the mixed layer depths are also small.

关键词

Keywords

references

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