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EN4: Quality controlled ocean temperature and salinity profiles and monthly objective analyses with uncertainty estimates

Good, Simon A., Martin, Matthew J., Rayner, Nick A.·2013·Journal of Geophysical Research: Oceans

Abstract

We present version 4 of the Met Office Hadley Centre “EN” series of data sets of global quality controlled ocean temperature and salinity profiles and monthly objective analyses, which covers the period 1900 to present. We briefly describe the EN4 data sources, processing, quality control procedures, and the method of generating the analyses. In particular, we highlight improvements relative to previous versions, which include a new duplicate profile removal procedure and the inclusion of three new quality control checks. We discuss in detail a novel method for providing uncertainty estimates for the objective analyses and improving the background error variance estimates used by the analysis system. These were calculated using an iterative method that is relatively robust to initial misspecification of background error variances. We also show how the method can be used to identify issues with the analyses such as those caused by misspecification of error variances and demonstrate the impact of changes in the observing system on the uncertainty in the analyses.

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Metadata

Authors
Good, S. A., Martin, M. J., & Rayner, N. A.
Venue
Journal of Geophysical Research: Oceans
Published
2013-12
Volume
118
Issue
12
Pages
6704-6716
ISSN
  • 2169-9275 (ISSN-L)
  • 2169-9291
OpenAlex
W1860063347
Cited by
1,861
References
1
FWCI
21.57
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: EN4: Quality controlled ocean temperature and salinity profiles and monthly objective analyses with uncertainty estimates. https://app.cochat.ai/papers/10.1002/2013jc009067
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Good, S. A., Martin, M. J., & Rayner, N. A. (2013). EN4: Quality controlled ocean temperature and salinity profiles and monthly objective analyses with uncertainty estimates. Journal of Geophysical Research: Oceans. https://doi.org/10.1002/2013jc009067

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