A tiling approach to model the landscape dynamics of polygonal tundra
Polygonal tundra and ice-rich permafrost landscapes are widespread across the Arctic and prone to rapid transitions due to ground subsidence, thermokarst or thermoerosion. Such small-scale processes are typically not resolved in large-scale Earth System models. Our goal with this study was to develo...
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ftawi:oai:epic.awi.de:47497 2023-05-15T15:04:15+02:00 A tiling approach to model the landscape dynamics of polygonal tundra Nitzbon, Jan Westermann, S. Langer, Moritz Martin, L. C. P. Grosse, Guido Boike, Julia 2018-06-28 https://epic.awi.de/id/eprint/47497/ https://hdl.handle.net/10013/epic.dcfb5572-dda7-46c9-85f9-2e6ec6b28063 unknown Nitzbon, J. orcid:0000-0001-7205-6298 , Westermann, S. , Langer, M. orcid:0000-0002-2704-3655 , Martin, L. C. P. , Grosse, G. orcid:0000-0001-5895-2141 and Boike, J. orcid:0000-0002-5875-2112 (2018) A tiling approach to model the landscape dynamics of polygonal tundra , 5th European Conference on Permafrost, Chamonix-Mont-Blanc, France, 23 June 2018 - 1 July 2018 . hdl:10013/epic.dcfb5572-dda7-46c9-85f9-2e6ec6b28063 EPIC35th European Conference on Permafrost, Chamonix-Mont-Blanc, France, 2018-06-23-2018-07-01 Conference notRev 2018 ftawi 2021-12-24T15:43:57Z Polygonal tundra and ice-rich permafrost landscapes are widespread across the Arctic and prone to rapid transitions due to ground subsidence, thermokarst or thermoerosion. Such small-scale processes are typically not resolved in large-scale Earth System models. Our goal with this study was to develop a scalable modeling approach that is capable of simulating the degradation of ice-wedges and the corresponding geomorphological transition from low- to high-centered polygons. For this, we employed the land surface model CryoGrid3 and advanced it by a hydrological infiltration scheme. We simulated the lateral exchange of heat, water, and snow between polygon centers, rims and troughs by coupling multiple realizations. We proved our modeling approach to be capable of describing the evolution of ice-wedge polygons and analyzed the hydrological and climatic conditions, which are favorable for their degradation. With this, we contributed to the understanding of landscape transitions in ice-rich permafrost regions and their representation in large-scale models. Conference Object Arctic Ice permafrost Thermokarst Tundra wedge* Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Polygonal tundra and ice-rich permafrost landscapes are widespread across the Arctic and prone to rapid transitions due to ground subsidence, thermokarst or thermoerosion. Such small-scale processes are typically not resolved in large-scale Earth System models. Our goal with this study was to develop a scalable modeling approach that is capable of simulating the degradation of ice-wedges and the corresponding geomorphological transition from low- to high-centered polygons. For this, we employed the land surface model CryoGrid3 and advanced it by a hydrological infiltration scheme. We simulated the lateral exchange of heat, water, and snow between polygon centers, rims and troughs by coupling multiple realizations. We proved our modeling approach to be capable of describing the evolution of ice-wedge polygons and analyzed the hydrological and climatic conditions, which are favorable for their degradation. With this, we contributed to the understanding of landscape transitions in ice-rich permafrost regions and their representation in large-scale models. |
format |
Conference Object |
author |
Nitzbon, Jan Westermann, S. Langer, Moritz Martin, L. C. P. Grosse, Guido Boike, Julia |
spellingShingle |
Nitzbon, Jan Westermann, S. Langer, Moritz Martin, L. C. P. Grosse, Guido Boike, Julia A tiling approach to model the landscape dynamics of polygonal tundra |
author_facet |
Nitzbon, Jan Westermann, S. Langer, Moritz Martin, L. C. P. Grosse, Guido Boike, Julia |
author_sort |
Nitzbon, Jan |
title |
A tiling approach to model the landscape dynamics of polygonal tundra |
title_short |
A tiling approach to model the landscape dynamics of polygonal tundra |
title_full |
A tiling approach to model the landscape dynamics of polygonal tundra |
title_fullStr |
A tiling approach to model the landscape dynamics of polygonal tundra |
title_full_unstemmed |
A tiling approach to model the landscape dynamics of polygonal tundra |
title_sort |
tiling approach to model the landscape dynamics of polygonal tundra |
publishDate |
2018 |
url |
https://epic.awi.de/id/eprint/47497/ https://hdl.handle.net/10013/epic.dcfb5572-dda7-46c9-85f9-2e6ec6b28063 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice permafrost Thermokarst Tundra wedge* |
genre_facet |
Arctic Ice permafrost Thermokarst Tundra wedge* |
op_source |
EPIC35th European Conference on Permafrost, Chamonix-Mont-Blanc, France, 2018-06-23-2018-07-01 |
op_relation |
Nitzbon, J. orcid:0000-0001-7205-6298 , Westermann, S. , Langer, M. orcid:0000-0002-2704-3655 , Martin, L. C. P. , Grosse, G. orcid:0000-0001-5895-2141 and Boike, J. orcid:0000-0002-5875-2112 (2018) A tiling approach to model the landscape dynamics of polygonal tundra , 5th European Conference on Permafrost, Chamonix-Mont-Blanc, France, 23 June 2018 - 1 July 2018 . hdl:10013/epic.dcfb5572-dda7-46c9-85f9-2e6ec6b28063 |
_version_ |
1766336055498244096 |