Articles | Volume 14, issue 6
Earth Syst. Sci. Data, 14, 2639–2679, 2022
https://doi.org/10.5194/essd-14-2639-2022
Earth Syst. Sci. Data, 14, 2639–2679, 2022
https://doi.org/10.5194/essd-14-2639-2022
Data description paper
09 Jun 2022
Data description paper | 09 Jun 2022

Revisiting five decades of 234Th data: a comprehensive global oceanic compilation

Elena Ceballos-Romero 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, https://doi.org/10.1016/j.dsr2.2019.104713, 2020. 
Amiel, D. and Cochran, J. K.: Terrestrial and marine POC fluxes derived from234Th distributions and δ13C measurements on the Mackenzie Shelf, J. Geophys. Res.-Ocean., 113, C03S06, https://doi.org/10.1029/2007JC004260, 2008. 
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, https://doi.org/10.1016/S0967-0645(02)00185-6, 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.-Ocean., 122, 3753–3770, https://doi.org/10.1002/2016JC012639, 2017a. 
Anand, S. S., Rengarajan, R., Shenoy, D., Gauns, M., and Naqvi, S. W. A.: POC export fluxes in the Arabian Sea and the Bay of Bengal: A simultaneous 234Th/238U and 210Po/210Pb study, Mar. Chem., 19820th January, 70–87, https://doi.org/10.1016/j.marchem.2017.11.005, 2017b. 
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Short summary
Thorium-234 is widely used for studying the removal rate of material on sinking particles from the upper ocean and for determining the downward flux of carbon. In this study, we present a compilation of the 50 years of 234Th measurements in the ocean and provide a broad overview of the character of the datasets. This provides a valuable resource useful to better understand and quantify how the contemporary oceanic carbon uptake functions and how it will change in future.