Simulating the infrastructure related degradation of ice-wedge polygonal tundra along a gravel road in Prudhoe Bay, Alaska
Due to permafrost degradation, triggered by climate warming and human activities, infrastructure in the Arctic is at particularly high risk. Linear infrastructure such as roads or railway lines can influence the evolution of polygonal tundra and enhance degradation due to changes in the hydrological...
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ftawi:oai:epic.awi.de:49127 2023-05-15T15:06:15+02:00 Simulating the infrastructure related degradation of ice-wedge polygonal tundra along a gravel road in Prudhoe Bay, Alaska Oehme, Alexander 2019-02-06 application/pdf https://epic.awi.de/id/eprint/49127/ https://epic.awi.de/id/eprint/49127/1/Bachelor_Thesis_Alexander_Oehme.pdf https://hdl.handle.net/10013/epic.f24630a1-c84c-4683-9aca-34f90b6ab903 https://hdl.handle.net/ unknown https://epic.awi.de/id/eprint/49127/1/Bachelor_Thesis_Alexander_Oehme.pdf https://hdl.handle.net/ Oehme, A. (2019) Simulating the infrastructure related degradation of ice-wedge polygonal tundra along a gravel road in Prudhoe Bay, Alaska , Bachelor thesis, Humboldt University Berlin. hdl:10013/epic.f24630a1-c84c-4683-9aca-34f90b6ab903 EPIC324 p. Thesis notRev 2019 ftawi 2021-12-24T15:44:31Z Due to permafrost degradation, triggered by climate warming and human activities, infrastructure in the Arctic is at particularly high risk. Linear infrastructure such as roads or railway lines can influence the evolution of polygonal tundra and enhance degradation due to changes in the hydrological conditions. In this study, the CryoGrid 3 land surface model is used to simulate the impact of different hydrological conditions triggered by a gravel road. In addition, a sensitivity analysis is performed to better understand the influence of different snow properties on the simulations. The results show that a reduced water runoff leads to a higher soil subsidence due to melting ice wedges, whereas the timing of the degradation is strongly controlled by the snow density. A more accurate determination of soil temperatures and better knowledge of stratigraphy and snow conditions could increase the accuracy of future simulations. Furthermore,factors such as snowdrifts and road dust are not taken into account yet, but might be important to consider in future studies. This will help to better understand the complex underlying processes that affect the evolution of polygonal tundra under the influence of infrastructure and changing climate conditions. Thesis Arctic Ice permafrost Prudhoe Bay Tundra wedge* Alaska Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Due to permafrost degradation, triggered by climate warming and human activities, infrastructure in the Arctic is at particularly high risk. Linear infrastructure such as roads or railway lines can influence the evolution of polygonal tundra and enhance degradation due to changes in the hydrological conditions. In this study, the CryoGrid 3 land surface model is used to simulate the impact of different hydrological conditions triggered by a gravel road. In addition, a sensitivity analysis is performed to better understand the influence of different snow properties on the simulations. The results show that a reduced water runoff leads to a higher soil subsidence due to melting ice wedges, whereas the timing of the degradation is strongly controlled by the snow density. A more accurate determination of soil temperatures and better knowledge of stratigraphy and snow conditions could increase the accuracy of future simulations. Furthermore,factors such as snowdrifts and road dust are not taken into account yet, but might be important to consider in future studies. This will help to better understand the complex underlying processes that affect the evolution of polygonal tundra under the influence of infrastructure and changing climate conditions. |
format |
Thesis |
author |
Oehme, Alexander |
spellingShingle |
Oehme, Alexander Simulating the infrastructure related degradation of ice-wedge polygonal tundra along a gravel road in Prudhoe Bay, Alaska |
author_facet |
Oehme, Alexander |
author_sort |
Oehme, Alexander |
title |
Simulating the infrastructure related degradation of ice-wedge polygonal tundra along a gravel road in Prudhoe Bay, Alaska |
title_short |
Simulating the infrastructure related degradation of ice-wedge polygonal tundra along a gravel road in Prudhoe Bay, Alaska |
title_full |
Simulating the infrastructure related degradation of ice-wedge polygonal tundra along a gravel road in Prudhoe Bay, Alaska |
title_fullStr |
Simulating the infrastructure related degradation of ice-wedge polygonal tundra along a gravel road in Prudhoe Bay, Alaska |
title_full_unstemmed |
Simulating the infrastructure related degradation of ice-wedge polygonal tundra along a gravel road in Prudhoe Bay, Alaska |
title_sort |
simulating the infrastructure related degradation of ice-wedge polygonal tundra along a gravel road in prudhoe bay, alaska |
publishDate |
2019 |
url |
https://epic.awi.de/id/eprint/49127/ https://epic.awi.de/id/eprint/49127/1/Bachelor_Thesis_Alexander_Oehme.pdf https://hdl.handle.net/10013/epic.f24630a1-c84c-4683-9aca-34f90b6ab903 https://hdl.handle.net/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice permafrost Prudhoe Bay Tundra wedge* Alaska |
genre_facet |
Arctic Ice permafrost Prudhoe Bay Tundra wedge* Alaska |
op_source |
EPIC324 p. |
op_relation |
https://epic.awi.de/id/eprint/49127/1/Bachelor_Thesis_Alexander_Oehme.pdf https://hdl.handle.net/ Oehme, A. (2019) Simulating the infrastructure related degradation of ice-wedge polygonal tundra along a gravel road in Prudhoe Bay, Alaska , Bachelor thesis, Humboldt University Berlin. hdl:10013/epic.f24630a1-c84c-4683-9aca-34f90b6ab903 |
_version_ |
1766337886610784256 |