Transition of ocean carbon data management from CDIAC-Oceans to NOAA/NCEI

[Please check out this page periodically for updated information about the transition and NCEI's ocean carbon data managment project.]


Data management activities at the ocean component of the Carbon Dioxide Information Analysis Center (CDIAC-Oceans) at the Oak Ridge National Laboratory (ORNL) will be stopped by December 31, 2016 due to discontinuation of funding from the Department of Energy (DOE). Data, numerical data packages (NDPs), data synthesis product pages, and utilities (such as CO2SYS) at CDIAC-Oceans will continue to be accessible through ORNL until September 30, 2017 when the entire CDIAC will fully cease operations.

Plan forward:

Alex Kozyr has started working at NCEI as a NOAA Affliate Staff member supporting global ocean carbon data management similar to what has been offered by CDIAC-Oceans starting from February 6, 2017. CDIAC-Oceans' data and services will be transferred to NOAA's National Centers for Environmental Information (NCEI) with a target completion date of September 30, 2017. NCEI will adopt a framework that not only is capable of managing rich metadata information for ocean carbon data but also can be integrated into the rest of NCEI's broader ocean acidification data management system.

Name of NCEI's ocean carbon data management project:

The name "CDIAC-Oceans" will be dropped. The NCEI project that is responsible for hosting and providing access for ocean carbon data will be called Ocean CArbon Data System (OCADS). The web address of the project is

Transition details:

All CDIAC-Oceans data sets, including bottle, underway, coastal, time series and moorings, have been archived at NCEI. They are still searchable by EXPOCODEs and Cruise IDs, along with other search keywords. CDIAC-Oceans's original metadata pages are being converted to NCEI's OADS metadata format (example) right now. Their data download links will be updated to point to NCEI's archives. The rest of NCEI's web pages, including numerical data packages (NDPs), utility pages such as those for CO2SYS, clickable maps, etc. are adopted by NCEI except that their header and footer will be changed to NCEI's. We are investigating the possibilities of maintaining the popular search engine, Web Accessible Visualization and Extraction System (WAVES), for data products such as GLODAP, CARINA, PACIFICA, GLODAPv2 and LDEO Database or replacing it with something similar (for example PMEL's SOCAT Data Viewer or WODselect interface).

New data submission interface:

We are working with NOAA's Pacific Marine Environmental Laboratory (PMEL) to develop a user-friendly metadata entry interface to allow data providers to input their metadata and upload their data files. The new system is scheduled to be functional by the end of FY2018. Until then, a submission interface leveraging Excel spreadsheets for metadata input will be used. The web address of the new data submission interface is After December 15, 2016, all ocean carbon data submissions shall be sent to NCEI directly.

New data access interface:

The Mercury based CDIAC-Oceans data discovery system will be discontinued. The new data discovery system will be based on NCEI's Geoportal. The web address of the new data discovery portal will be: Once a data set is transferred to NCEI, the DOIs and EXPOCODEs that are issued by CDIAC-Oceans can continue to be used as search keywords to locate a data set from NCEI.

For questions:

If you have any questions about the transition or want to learn more about how to submit or access ocean carbon data, please freel free to contact one of us:

Alex Kozyr (ORNL/CDIAC)
Phone: (865) 216-4499

Liqing Jiang (NOAA/NCEI)
Phone:(301) 713-4858

Thank you for your patience during the transition! While some changes may take time to get used to, we hope to provide even better service by putting ocean carbon data into a long-term archive and standardizing major metadata elements. Our goal is to build an ocean carbon data service that is driven by the users and at the same time meets all of the U.S. government's data management requirements. We look forward to working with you for your future ocean carbon data management needs.

Last updated: August 9, 2017.