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Please be warned that owing to an error the Argo greylist was not applied to these data.
Please note that only profile data are available at the current time.
Contact us if you have a requirement for analyses created using bias adjusted data.
These zip files each contain monthly files of the profile data with quality information.
Help with downloading
Use the links on the left to download the EN4 dataset a year at a time. Only available for download are files containing profiles.
If you require the whole dataset one way to do this is to use wget. To do this download the file below (and edit it if not all files are required).
wget -i EN.4.0.2_Profiles_g10v13_download_list.txt
Note: the above method was written for Linux systems but should also be applicable to other operating systems with wget installed.
The data files are stored in zip files. These can be unpacked using standard utilities such as unzip on Linux systems. Within the zip files are data files which are in NetCDF classic format (sometimes referred to as NetCDF3 files). The contents of these are summarised in the links below:
File naming convention
We use a standardised file naming convention. For the zip files the form is:
For the data files an expanded form is used:
The sections of the names are:
Citing the data
When using the data set in a paper, please quote the version number (EN4.0.2), the date the data were downloaded and cite the following:
Good, S. A., M. J. Martin and N. A. Rayner, 2013. EN4: quality controlled ocean temperature and salinity profiles and monthly objective analyses with uncertainty estimates, Journal of Geophysical Research: Oceans, 118, 6704-6716, doi:10.1002/2013JC009067
Where appropriate please also acknowledge the data sources used to create EN4.
The reference for the bias adjustments is:
Gouretski, V. and F. Reseghetti, 2010. On depth and temperature biases in bathythermograph data: Development of a new correction scheme based on analysis of a global ocean database, Deep-Sea Research I, 57, 812-833, doi:10.1016/j.dsr.2010.03.011
The expendable bathythermograph (XBT) bias adjustments that were used were downloaded from http://www.nodc.noaa.gov/OC5/XBT_BIAS/xbt_bias.html; the corrections are referred to as 'v13' in the filenames as the webpage from which the adjustments were obtained was last modified in April 2013.
This dataset is updated periodically. Please contact us to request an update.
Changes compared to EN.4.0.1
The main changes compared to the previous version of the dataset are:
Commercial and media enquiries
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