Climatological distributions of δ13C of dissolved inorganic carbon in the Global Oceans

The climatology provides mapped data of δ13C in the preindustrial and the modern global ocean, as well as of the full 13C Suess effect over the industrial period. The distributions were constructed as described in Eide et al. [2017a] and Eide et al. [2017b]. The data are openly available but these two papers have to be cited whenever and wherever these data are used:

Eide, M., A. Olsen, U. Ninnemann, and T. Eldevik (2017a), A Global Estimate of the Full Oceanic 13C Suess Effect Since the Preindustrial, Global Biogeochem. Cycles, doi:10.1002/2016GB005472.

Eide, M., A. Olsen, U. Ninnemann, and T. Johannessen (2017b), A Global Ocean Climatology of Preindustrial and Modern Ocean δ13C, Global Biogeochem. Cycles, doi:10.1002/2016GB005473.

The climatology was developed using data that was collected mostly during the 1990s, and the modern ocean δ13C and the full 13C Suess effect estimates should be considered to represent this time period.  

The data are provided as two files, both on a 1˚×1˚ grid. One provides all data for the global ocean at 24 depth levels, starting from 200 m. The other provides a full depth grid of the 13C Suess effect, on 33 depth levels. Estimates for the upper 200 m preindustrial and modern oceans δ13C distributions could not be generated as there are insufficient data to describe the upper ocean δ13C seasonal cycle globally; see Eide et al. [2017a] and Eide et al. [2017b] for further details.

The climatology can be downloaded here.


The preindustrial δ13C distribution (‰) at selected locations in the Atlantic Ocean; (a) at 200 m depth in the North Atlantic, (b) along 45˚W in the North Atlantic, (c) at 200 m depth in the South Atlantic, and (d) along 30˚W in the South Atlantic.




Concept and Design:

MedienIngenieure Bremen

Development and CMS:

mpme Webdesign Bremen