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Boulder +
United States +
Irina +
University of Colorado, INSTAAR +
Overeem +
80309 +
Colorado +
Project manager +
No but possible +
No but possible +
No but possible +
No but possible +
Single Processor +
Creation date"Creation date" is a predefined property that corresponds to the date of the first revision of a subject and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
21:03:23, 9 October 2025 +
https://zenodo.org/records/17673881 +
V1.0.0 +
No +
The model requires daily mean river water discharge, meteorological data, channel geometry, and thermal and mechanical characteristics of permafrost and river water. +
The model simulates ablation based on a fl … The model simulates ablation based on a fluvial heat transfer that is inhibited by latent heat in the bank. </br>The fluvial heat transfer coefficient depends on flow shear velocity and thermal properties of river water, including temperature. Flow shear velocity is modeled as a function of river water depth and roughness of gravel on bank toes. The heat required to melt interstitial pore ice is based on thermal properties of bank material; these include permafrost volumetric ice content and surface temperature, ice melting temperature, heat capacity, density, and latent heat in ice. this is based on the work by Costard et al., (2003) and others.</br></br>The model simulates collapse by removing overhanging bank blocks rom the bank profile when a torque-based threshold is exceeded. The model tracks bank morphology and checks is the threshold is reached at each timestep. For this component, parameters include permafrost tensile strength and density and the distance between troughs in the floodplain. This is based on the model by Barnhart et al. (2013).ed on the model by Barnhart et al. (2013). +
The bank erosion model works best when the vertical spacing on the bank profile is on the order of centimeters for a 1-meter bank profile. +
This model is limited to ice-rich permafrost exposures, where soil is at least 40% ice by volume and inorganic particles tend to be finer than sand. +
Bank profile and simulated erosion rates +
This model simulates how flowing river wat … This model simulates how flowing river water thaws interstitial pore ice in permafrost soils exposed on banks. This process - ablation - frees fine sediment that is otherwise cemented by ice, allowing for its entrainment and downstream transport. The model also simulates the episodic collapse of upper bank overhanging blocks that are undercut by ablation. This model is applicable to banks of permafrost rivers, but can be adapted to other settings.ers, but can be adapted to other settings. +
The water temperature model is limited to … The water temperature model is limited to a 3-hour timestep when using daily mean discharge data and meteorological data with 15-minute resolution. If the bank erosion model is run with constant water temperature, then timesteps can be larger or smaller. To allow for realistic geometry of overhanging blocks, the model should be run with hourly to daily timesteps.uld be run with hourly to daily timesteps. +
Active +
2,025 +
The PermafrostBankErosionModel is a Python … The PermafrostBankErosionModel is a Python-based simulation module for modeling bank erosion in permafrost rivers, where thermal and mechanical processes interact seasonally. The model simulates river bank ablation and collapse under fluvial and thermal forcing.ollapse under fluvial and thermal forcing. +
Josie +
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ASCII +
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Permafrost Bank Erosion Model +
thermal +, mechanical +, environments +, python-based simulation module +, processes interact seasonally +, mechanical processes interact +, modeling bank erosion +, python-based simulation +, interact seasonally +, simulation module +, module for modeling +, erosion in permafrost +, mechanical processes +, processes interact +, modeling bank +, bank erosion +, permafrost rivers +, simulates river bank +, riverbank erosion +, permafrost +, ablation +, collapse + and permafrostbankerosionmodel +
As code +
Tool +
https://github.com/josiearcuri/PermafrostBankErosionModel/tree/main/docs/build/html +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
17:28:22, 21 November 2025 +
The PermafrostBankErosionModel is a model simulating thermal–mechanical riverbank erosion in permafrost environments. +
ASCII +
80309 +
false +
false +
GPL v3 +
Python +
2 minutes +
Through web repository +
https://github.com/josiearcuri/PermafrostBankErosionModel +
Reach-Scale +
2022 +
Model developer +
