Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 14, issue 11
Articles | Volume 14, issue 11
https://doi.org/10.5194/gmd-14-7155-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-14-7155-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 11
Model description paper
 | 
25 Nov 2021
Model description paper |  | 25 Nov 2021

OMEN-SED(-RCM) (v1.1): a pseudo-reactive continuum representation of organic matter degradation dynamics for OMEN-SED

Philip Pika, Dominik Hülse, and Sandra Arndt

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Latest update: 24 Oct 2025
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Short summary
OMEN-SED is a model for early diagenesis in marine sediments simulating organic matter (OM) degradation and nutrient dynamics. We replaced the original description with a more realistic one accounting for the widely observed decrease in OM reactivity. The new model reproduces pore water profiles and sediment–water interface fluxes across different environments. This functionality extends the model’s applicability to a broad range of environments and timescales while requiring fewer parameters.
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