CORA, Coriolis Ocean Dataset for Reanalysis

Date 2019-09
Temporal extent 1950 -2019
Author(s) Szekely Tanguy1, Gourrion Jerome1, Pouliquen SylvieORCID2, Reverdin GillesORCID3
Affiliation(s) 1 : CNRS
2 : Ifremer
3 : LOCEAN
DOI 10.17882/46219
Publisher SEANOE
Abstract

The COriolis Ocean Dataset for Reanalysis (hereafter CORA) product is a global dataset of in situ temperature and salinity measurements. The version 5.0 of the product covers the period 1950-2016. The CORA observations comes from many different sources collected by Coriolis data centre in collaboration with the In Situ Thematic Centre of the Copernicus Marine Service (CMEMS INSTAC).  The observation integrated in the Cora product have been acquired both by autonomous platforms (Argo profilers, fixed moorings , gliders , drifters, sea mammals) , research or opportunity vessels (CTDs, XBTs, ferrybox). 

From the near real time CMEMS In Situ Thematic Centre product validated on a daily and weekly basis for forecasting purposes, a scientifically validated product is created. It s a "reference product" updated on a yearly basis since 2007. This product has been controlled using an objective analysis (statistical tests) method and a visual quality control (QC). This QC procedure has been developed with the main objective to improve the quality of the dataset to the level required by the climate application and the physical ocean re-analysis activities. It provides T and S weekly gridded fields and individual profiles both on their original level with QC flags and interpolated level. The measured parameters, depending on the data source, are : temperature, salinity. The reference level of measurements is immersion (in meters) or pressure (in decibars). 

The main new features of CORA 5.0 version is the incorporation of profiles and time series measured during  2015 and the addition of over 1 million historical profiles extracted from the EN.4 global T&S dataset, mostly from the period 1950s-1990s.

The main new features of CORA 5.1 version is the incorporation of profiles and time series measured during  2016.

The CORA dataset is a yearly updated product. As a consequence, the updated profiles in the Coriolis database and the current year profiles are validated to update the CORA dataset and released in May.

Licence CC-BY
Utilisation Data are published without any warranty, express or implied. The user assumes all risk arising from his/her use of data. Data are intended to be research-quality and include estimates of data quality and accuracy, but it is possible that these estimates or the data themselves contain errors. It is the sole responsibility of the user to assess if the data are appropriate for his/her use, and to interpret the data, data quality, and data accuracy accordingly. Authors welcome users to ask questions and report problems.
Acknowledgments This study has been conducted using E.U. Copernicus Marine Service Information.
User's manual

http://marine.copernicus.eu/documents/PUM/CMEMS-INS-PUM-013-001-b.pdf

Data

erddap

5.2 version (Free last version through Copernicus)

Data
File Size Format Processing Access Key
CORA V4.2 82 GB NC, NetCDF Quality controlled data Open access 45997
CORA V4.1 47 GB NC, NetCDF Quality controlled data Open access 45999
CORA V4.0 83 GB NC, NetCDF Quality controlled data Open access 46076
CORA V3.4 71 GB NC, NetCDF Quality controlled data Open access 46120
CORA V3.3 66 GB NC, NetCDF Quality controlled data Open access 46125
CORA V3.2 64 GB NC, NetCDF Quality controlled data Open access 46126
CORA V3.1 5 GB NC, NetCDF Quality controlled data Open access 46127
CORA V2.0 31 GB NC, NetCDF Quality controlled data Open access 46128
CORA V1.0 11 GB NC, NetCDF Quality controlled data Open access 46129
CORA V5.0 17 GB NC, NetCDF Processed data Open access 56697
CORA V5.1 (get a free version through Copernicus : see bellow) 15 GB NC, NetCDF Processed data Open access 56698
18 GB NC, NetCDF Processed data Access on demand until 2021-09-01 66698
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How to cite 

Szekely Tanguy, Gourrion Jerome, Pouliquen Sylvie, Reverdin Gilles (2019). CORA, Coriolis Ocean Dataset for Reanalysis. SEANOE. https://doi.org/10.17882/46219