ESSD Earth System Science Data ESSD Earth Syst. Sci. Data 1866-3516 Copernicus Publications Göttingen, Germany 10.5194/essd-5-295-2013 Global database of surface ocean particulate organic carbon export fluxes diagnosed from the <sup>234</sup>Th technique Le Moigne F. A. C. 1 Henson S. A. 1 Sanders R. J. 1 Madsen E. 2 Ocean Biogeochemistry and Ecosystems, National Oceanography Centre, Southampton, UK formerly at: School of Applied Sciences, Cranfield University, Cranfield, UK 12 08 2013 5 2 295 304 Copyright: © 2013 F. A. C. Le Moigne et al. 2013 This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/3.0/ This article is available from https://essd.copernicus.org/articles/5/295/2013/essd-5-295-2013.html The full text article is available as a PDF file from https://essd.copernicus.org/articles/5/295/2013/essd-5-295-2013.pdf

The oceanic biological carbon pump is an important factor in the global carbon cycle. Organic carbon is exported from the surface ocean mainly in the form of settling particles derived from plankton production in the upper layers of the ocean. The large variability in current estimates of the global strength of the biological carbon pump emphasises that our knowledge of a major planetary carbon flux remains poorly constrained. We present a database of 723 estimates of organic carbon export from the surface ocean derived from the <sup>234</sup>Th technique. The dataset is archived on the data repository PANGEA® (<a href="http://www.pangea.de"target="_blank">www.pangea.de</a>) under <a href="http://dx.doi.org/10.1594/PANGAEA.809717"target="_blank">doi:10.1594/PANGAEA.809717</a>. Data were collected from tables in papers published between 1985 and early 2013. We also present sampling dates, publication dates and sampling areas. Most of the open ocean provinces are represented by multiple measurements. However, the western Pacific, the Atlantic Arctic, South Pacific and the southern Indian Ocean are not well represented. There is a variety of integration depths ranging from surface to 300 m. Globally the fluxes ranged from 0 to 1500 mg C m<sup>−2</sup> d<sup>−1</sup>.

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