Articles | Volume 12, issue 2
Earth Syst. Sci. Data, 12, 1267–1285, 2020
https://doi.org/10.5194/essd-12-1267-2020
Earth Syst. Sci. Data, 12, 1267–1285, 2020
https://doi.org/10.5194/essd-12-1267-2020

Data description paper 09 Jun 2020

Data description paper | 09 Jun 2020

Global database of ratios of particulate organic carbon to thorium-234 in the ocean: improving estimates of the biological carbon pump

Viena Puigcorbé et al.

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Cited articles

Alkalay, R., Zlatkin, O., Katz, T., Herut, B., Halicz, L., Berman-Frank, I., and Weinstein, Y.: Carbon export and drivers in the southeastern Levantine Basin, Deep-Sea Res. Pt. II, 171, 104713, doi10.1016/j.dsr2.2019.104713, 2020. 
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Amiel, D., Cochran, J. K., and Hirschberg, D. J.: 234Th∕238U disequilibrium as an indicator of the seasonal export flux of particulate organic carbon in the North Water, Deep-Sea Res. Pt. II, 49, 5191–5209, 2002. 
Anand, S. S., Rengarajan, R., Sarma, V. V. S. S., Sudheer, A. K., Bhushan, R., and Singh, S. K.: Spatial variability of upper ocean POC export in the Bay of Bengal and the Indian Ocean determined using particle-reactive 234Th, J. Geophys. Res.-Oceans, 122, 3753–3770, https://doi.org/10.1002/2016JC012639, 2017. 
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Short summary
The biological carbon pump is a mechanism by which the oceans capture atmospheric carbon dioxide thanks to microscopic marine algae. Quantifying its strength and efficiency is crucial to understand the global carbon budget and be able to forecast its trends. The radioactive pair 234Th : 238U has been extensively used for that purpose. This is a global compilation of carbon-to-234Th ratios (needed to convert the 234Th fluxes to carbon fluxes) that will contribute to improve our modeling efforts.