Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 15, issue 5
Articles | Volume 15, issue 5
https://doi.org/10.5194/gmd-15-2013-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-15-2013-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 5
Model description paper
 | 
10 Mar 2022
Model description paper |  | 10 Mar 2022

Global simulation of dissolved 231Pa and 230Th in the ocean and the sedimentary 231Pa∕230Th ratios with the ocean general circulation model COCO ver4.0

Yusuke Sasaki, Hidetaka Kobayashi, and Akira Oka

Supplement

https://doi.org/10.5194/gmd-15-2013-2022-supplement

Data sets

Data for the figures of Sasaki et al. entitled "An investigation into the processes controlling the global distribution of dissolved 231Pa and 230Th in the ocean and the sedimentary 231Pa/230Th ratios by using an ocean general circulation model COCO ver4.0 Yusuke Sasaki, Hidetaka Kobayashi, and Akira Oka https://doi.org/10.5281/zenodo.4600287

Model code and software

Core code of MIROC-ES2L, Geoscientific Model Development Rumi Ohgaito, Akitomo Yamamoto, Tomohiro Hajima, Ryouta O'ishi, Manabu Abe, Hiroaki Tatebe, Ayako Abe-Ouchi, and Michio Kawamiya https://doi.org/10.5281/zenodo.3893386

Code of Sasaki et al. entitled "An investigation into the processes controlling the global distribution of dissolved 231Pa and 230Th in the ocean and the sedimentary 231Pa/230Th ratios by using an ocean general circulation model COCO ver4.0." Yusuke Sasaki, Hidetaka Kobayashi, and Akira Oka https://doi.org/10.5281/zenodo.4655883

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Short summary
For realistically simulating the recently observed distributions of dissolved 230Th and 231Pa in the ocean, we highlight the importance of the removal process of 231Pa and 230Th at the seafloor (bottom scavenging) and the dependence of scavenging efficiency on particle concentration. We show that consideration of these two processes can well reproduce not only the oceanic distribution of 231Pa and 230Th but also the sedimentary 231Pa/230Th ratios.
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