Articles | Volume 16, issue 10
https://doi.org/10.5194/tc-16-4141-2022
https://doi.org/10.5194/tc-16-4141-2022
Research article
 | 
10 Oct 2022
Research article |  | 10 Oct 2022

Evaluating simplifications of subsurface process representations for field-scale permafrost hydrology models

Bo Gao and Ethan T. Coon

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Latest update: 15 Apr 2024
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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.