A Process-Based Model for Arctic Coastal Erosion Driven by Thermodenudation and Thermoabrasion Combined and including Nearshore Morphodynamics
Various models have recently been developed to describe Arctic coastal erosion. Current process-based models simulate multiple physical processes and combine them interactively to resemble the unique mechanism of Arctic coastal erosion. One limitation of such models is the difficulty of including hy...
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Multidisciplinary Digital Publishing Institute
2022
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Online Access: | https://doi.org/10.3390/jmse10111602 |
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ftmdpi:oai:mdpi.com:/2077-1312/10/11/1602/ 2023-08-20T04:03:26+02:00 A Process-Based Model for Arctic Coastal Erosion Driven by Thermodenudation and Thermoabrasion Combined and including Nearshore Morphodynamics Mohammad Akhsanul Islam Raed Lubbad agris 2022-10-31 application/pdf https://doi.org/10.3390/jmse10111602 EN eng Multidisciplinary Digital Publishing Institute Coastal Engineering https://dx.doi.org/10.3390/jmse10111602 https://creativecommons.org/licenses/by/4.0/ Journal of Marine Science and Engineering; Volume 10; Issue 11; Pages: 1602 thermodenudation thermoabrasion probabilistic model permafrost storm surge niche growth bluff collapse Text 2022 ftmdpi https://doi.org/10.3390/jmse10111602 2023-08-01T07:07:31Z Various models have recently been developed to describe Arctic coastal erosion. Current process-based models simulate multiple physical processes and combine them interactively to resemble the unique mechanism of Arctic coastal erosion. One limitation of such models is the difficulty of including hydrodynamic forces. The available coastal erosion models developed for warmer climates cannot be applied to Arctic coastal erosion, where permafrost is a significant environmental parameter. This paper explains a methodology that allows us to use the models designed for warmer climates to simulate Arctic coastal erosion. The open-source software XBeach is employed to simulate the waves, sediment transport and morphological changes. We developed different submodules for the processes unique to Arctic coasts, such as thawing–freezing, slumping, wave-cut niche, bluff failure, etc. The submodules are coupled with XBeach to enable concurrent simulation of the two mechanisms of Arctic coastal erosion, namely thermodenudation and thermoabrasion. Some of the model’s input parameters are calibrated using field measurements from the Arctic coast of Kara Sea, Russia. The model is then validated by another set of mutually exclusive field measurements under different morphological conditions from the study area. The sensitivity analysis of the model indicates that nearshore waves are an important driver of erosion, and the inclusion of nearshore hydrodynamics and sediment transport are essential for accurately modelling the erosion mechanism. Text Arctic Kara Sea permafrost MDPI Open Access Publishing Arctic Kara Sea Journal of Marine Science and Engineering 10 11 1602 |
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Open Polar |
collection |
MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
thermodenudation thermoabrasion probabilistic model permafrost storm surge niche growth bluff collapse |
spellingShingle |
thermodenudation thermoabrasion probabilistic model permafrost storm surge niche growth bluff collapse Mohammad Akhsanul Islam Raed Lubbad A Process-Based Model for Arctic Coastal Erosion Driven by Thermodenudation and Thermoabrasion Combined and including Nearshore Morphodynamics |
topic_facet |
thermodenudation thermoabrasion probabilistic model permafrost storm surge niche growth bluff collapse |
description |
Various models have recently been developed to describe Arctic coastal erosion. Current process-based models simulate multiple physical processes and combine them interactively to resemble the unique mechanism of Arctic coastal erosion. One limitation of such models is the difficulty of including hydrodynamic forces. The available coastal erosion models developed for warmer climates cannot be applied to Arctic coastal erosion, where permafrost is a significant environmental parameter. This paper explains a methodology that allows us to use the models designed for warmer climates to simulate Arctic coastal erosion. The open-source software XBeach is employed to simulate the waves, sediment transport and morphological changes. We developed different submodules for the processes unique to Arctic coasts, such as thawing–freezing, slumping, wave-cut niche, bluff failure, etc. The submodules are coupled with XBeach to enable concurrent simulation of the two mechanisms of Arctic coastal erosion, namely thermodenudation and thermoabrasion. Some of the model’s input parameters are calibrated using field measurements from the Arctic coast of Kara Sea, Russia. The model is then validated by another set of mutually exclusive field measurements under different morphological conditions from the study area. The sensitivity analysis of the model indicates that nearshore waves are an important driver of erosion, and the inclusion of nearshore hydrodynamics and sediment transport are essential for accurately modelling the erosion mechanism. |
format |
Text |
author |
Mohammad Akhsanul Islam Raed Lubbad |
author_facet |
Mohammad Akhsanul Islam Raed Lubbad |
author_sort |
Mohammad Akhsanul Islam |
title |
A Process-Based Model for Arctic Coastal Erosion Driven by Thermodenudation and Thermoabrasion Combined and including Nearshore Morphodynamics |
title_short |
A Process-Based Model for Arctic Coastal Erosion Driven by Thermodenudation and Thermoabrasion Combined and including Nearshore Morphodynamics |
title_full |
A Process-Based Model for Arctic Coastal Erosion Driven by Thermodenudation and Thermoabrasion Combined and including Nearshore Morphodynamics |
title_fullStr |
A Process-Based Model for Arctic Coastal Erosion Driven by Thermodenudation and Thermoabrasion Combined and including Nearshore Morphodynamics |
title_full_unstemmed |
A Process-Based Model for Arctic Coastal Erosion Driven by Thermodenudation and Thermoabrasion Combined and including Nearshore Morphodynamics |
title_sort |
process-based model for arctic coastal erosion driven by thermodenudation and thermoabrasion combined and including nearshore morphodynamics |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/jmse10111602 |
op_coverage |
agris |
geographic |
Arctic Kara Sea |
geographic_facet |
Arctic Kara Sea |
genre |
Arctic Kara Sea permafrost |
genre_facet |
Arctic Kara Sea permafrost |
op_source |
Journal of Marine Science and Engineering; Volume 10; Issue 11; Pages: 1602 |
op_relation |
Coastal Engineering https://dx.doi.org/10.3390/jmse10111602 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/jmse10111602 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
10 |
container_issue |
11 |
container_start_page |
1602 |
_version_ |
1774713795026878464 |