NOTICE (September 2017): Data previously stored at the CDIAC archive are being transitioned to the new, ESS-DIVE archive. This website provides access to the CDIAC data during the transition. If you have any questions regarding the new archive or the data transition, please contact

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Data Submission

For those wishing to contribute data to the CDIAC data collection, we encourage potential submitters to first review the excellent guide to recommended data practices provided by the ORNL DAAC, and then contact one of the CDIAC staff members to discuss further data submission plans. Data providers may submit data in a variety of ways including via email, direct deposit to a secure CDIAC File Transfer Protocol (FTP) server, on transfer media (e.g. CD-ROM), or by having CDIAC mirror a location at the investigator's institution.

We appreciate your willingness to share scientific data with a wider scientific audience and trust in CDIAC to properly advertise, promote, and disseminate your data.