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SODA3: A New Ocean Climate Reanalysis

Carton, James A., Chepurin, Gennady A., Chen, Ligang·2018·Journal of Climate

Abstract

This paper describes version 3 of the Simple Ocean Data Assimilation (SODA3) ocean reanalysis with enhancements to model resolution, observation, and forcing datasets, and the addition of active sea ice. SODA3 relies on the ocean component of the NOAA/Geophysical Fluid Dynamics Laboratory CM2.5 coupled model with nominal ¼° resolution. A scheme has also been implemented to reduce bias in the surface fluxes. A 37-yr-long ocean reanalysis, SODA3.4.2, created using this new SODA3 system is compared to the previous generation of SODA (SODA2.2.4) as well as to the Hadley Centre EN4.1.1 no-model statistical objective analysis. The comparison is carried out in the tropics, the midlatitudes, and the Arctic and includes examinations of the meridional overturning circulation in the Atlantic. The comparison shows that SODA3.4.2 has reduced systematic errors to a level comparable to those of the no-model statistical objective analysis in the upper ocean. The accuracy of variability has been improved particularly poleward of the tropics, with the greatest improvements seen in the Arctic, accompanying a substantial reduction in surface net heat and freshwater flux bias. These improvements justify increasing use of ocean reanalysis for climate studies including the higher latitudes.

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Metadata

Authors
Carton, J. A., Chepurin, G. A., & Chen, L.
Venue
Journal of Climate
Published
2018-09
Volume
31
Issue
17
Pages
6967-6983
ISSN
  • 0894-8755 (ISSN-L)
  • 1520-0442
OpenAlex
W2804007973
Cited by
624
References
38
FWCI
31.68
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: SODA3: A New Ocean Climate Reanalysis. https://app.cochat.ai/papers/10.1175/jcli-d-18-0149.1
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Carton, J. A., Chepurin, G. A., & Chen, L. (2018). SODA3: A New Ocean Climate Reanalysis. Journal of Climate. https://doi.org/10.1175/jcli-d-18-0149.1

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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