Articles | Volume 16, issue 10
https://doi.org/10.5194/tc-16-4141-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-16-4141-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Oct 2022
Research article |
| 10 Oct 2022
| 10 Oct 2022
Evaluating simplifications of subsurface process representations for field-scale permafrost hydrology models
Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
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Short summary
Representing water at constant density, neglecting cryosuction, and neglecting heat advection are three commonly applied but not validated simplifications in permafrost models to reduce computation complexity at field scale. We investigated this problem numerically by Advanced Terrestrial Simulator and found that neglecting cryosuction can cause significant bias (10%–60%), constant density primarily affects predicting water saturation, and ignoring heat advection has the least impact.
Representing water at constant density, neglecting cryosuction, and neglecting heat advection...
