A global scavenging and circulation ocean model of thorium-230 and protactinium-231 with improved particle dynamics (NEMO–ProThorP 0.1)

van Hulten, Marco; Dutay, Jean-Claude; Roy-Barman, Matthieu

doi:https://doi.org/10.5194/gmd-11-3537-2018

Articles | Volume 11, issue 9

https://doi.org/10.5194/gmd-11-3537-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Nucleus for European Modelling of the Ocean - NEMO

https://doi.org/10.5194/gmd-11-3537-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 11, issue 9

Model description paper

|

31 Aug 2018

Model description paper |

| 31 Aug 2018

A global scavenging and circulation ocean model of thorium-230 and protactinium-231 with improved particle dynamics (NEMO–ProThorP 0.1)

Marco van Hulten, Jean-Claude Dutay, and Matthieu Roy-Barman

Supplement

https://doi.org/10.5194/gmd-11-3537-2018-supplement

Data sets

Output from a global scavenging and circulation ocean model of thorium-230 and protactinium-231 (ProThorP 0.1). Marco M. P. van Hulten, Jean-Claude Dutay, and Matthieu Roy-Barman https://doi.org/10.1594/PANGAEA.887261

Model code and software

Ocean model of Protactinium, Thorium and Particles (ProThorP) Marco M. P. van Hulten, Jean-Claude Dutay, and Matthieu Roy-Barman https://doi.org/10.5281/zenodo.1009064

Short summary

We present an ocean model of the natural radioactive isotopes thorium-230 and protactinium-231. These isotopes are often used to investigate past ocean circulation and particle transport. They are removed by particles produced by plankton and from uplifted desert dust that is deposited into the ocean. We approach observed dissolved and adsorbed Th-230 and Pa-231 activities. The Pa-231 / Th-230 sedimentation ratio is reproduced as well; this quantity can be used as a proxy for ocean circulation.