Advances in Geosciences
Advances in Geosciences
ADGEO
Articles | Volume 65
Articles | Volume 65
https://doi.org/10.5194/adgeo-65-45-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/adgeo-65-45-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 65
12 Nov 2024
 | 12 Nov 2024

DecTree: a physics-based geochemical surrogate for surface complexation of uranium on clay

Marco De Lucia

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Short summary
This paper presents a surrogate modelling approach applied to a geochemical system of uranium sorption on clay, relevant for the safety assessment of nuclear waste repositories. The surrogate uses knowledge about the underlying process to recursively partition the dataset into regions of reduced dimensionality. It achieves high accuracy with a competitive prediction throughput, and is a promising method to speedup  computationally demanding coupled reactive transport models.
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