Simulation of Freeze-Thaw and Melting of Buried Ice in Longbasaba Moraine Dam in the Central Himalayas Between 1959 and 2100 Using COMSOL Multiphysics
Permafrost degradation increases the likelihood of glacial lake outburst floods on the Tibetan Plateau. Analyses of the freeze-thaw conditions in moraine dams and associated impacts on dam stability contribute toward reducing natural hazard risks. We used the heat transfer module of COMSOL Multiphys...
Published in: | Journal of Geophysical Research: Earth Surface |
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Language: | English |
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AMER GEOPHYSICAL UNION
2023
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Online Access: | http://ir.imde.ac.cn/handle/131551/57481 https://doi.org/10.1029/2022JF006848 |
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ftchinacadscimhe:oai:ir.imde.ac.cn:131551/57481 2023-12-03T10:08:24+01:00 Simulation of Freeze-Thaw and Melting of Buried Ice in Longbasaba Moraine Dam in the Central Himalayas Between 1959 and 2100 Using COMSOL Multiphysics Wang, Jia Wang, Xin Zhang, Yanlin Ran, Weijie Zhang, Yong Wei, Junfeng Liu, Qiao Lei, Dongyu 2023-03-01 http://ir.imde.ac.cn/handle/131551/57481 https://doi.org/10.1029/2022JF006848 英语 eng AMER GEOPHYSICAL UNION JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE http://ir.imde.ac.cn/handle/131551/57481 doi:10.1029/2022JF006848 soil temperature simulation moraine dam buried ice melting freeze-thaw process LAKE OUTBURST FLOOD ACTIVE LAYER PERMAFROST DISTRIBUTION DEGRADING PERMAFROST PROGLACIAL LAKES GLACIAL LAKES VOLUME EMBANKMENT TRANSPORT BREACH Geology Geosciences Multidisciplinary 期刊论文 2023 ftchinacadscimhe https://doi.org/10.1029/2022JF006848 2023-11-03T01:17:40Z Permafrost degradation increases the likelihood of glacial lake outburst floods on the Tibetan Plateau. Analyses of the freeze-thaw conditions in moraine dams and associated impacts on dam stability contribute toward reducing natural hazard risks. We used the heat transfer module of COMSOL Multiphysics to simulate the soil temperature field in the Longbasaba moraine dam, which is on the northern slope of central Himalaya. There is close agreement between the simulated and observed soil temperature values. Root mean squared errors (the square root of the mean of the square of all of the error) are below 1.30? and mean bias errors vary from -0.10 to -0.52? for the different soil layers. Between 1959 and 2020, active layer thickness increased at a mean annual rate of 0.024 m a(-1). Under the Coupled Model Intercomparison Project Phase 6 scenarios, the buried ice inside the moraine dam is clearly melting. The maximum-buried ice thaw depth is currently 3.4 m and at the end of the 21st century is projected to be 9.53, 16.69, and 21.83 m under SSP1-2.6, SSP2-4.5, and SSP5-8.5, which indicates a continuous decrease in moraine dam stability. Report Active layer thickness Ice permafrost IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) Glacial Lake ENVELOPE(-129.463,-129.463,58.259,58.259) Journal of Geophysical Research: Earth Surface 128 3 |
institution |
Open Polar |
collection |
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) |
op_collection_id |
ftchinacadscimhe |
language |
English |
topic |
soil temperature simulation moraine dam buried ice melting freeze-thaw process LAKE OUTBURST FLOOD ACTIVE LAYER PERMAFROST DISTRIBUTION DEGRADING PERMAFROST PROGLACIAL LAKES GLACIAL LAKES VOLUME EMBANKMENT TRANSPORT BREACH Geology Geosciences Multidisciplinary |
spellingShingle |
soil temperature simulation moraine dam buried ice melting freeze-thaw process LAKE OUTBURST FLOOD ACTIVE LAYER PERMAFROST DISTRIBUTION DEGRADING PERMAFROST PROGLACIAL LAKES GLACIAL LAKES VOLUME EMBANKMENT TRANSPORT BREACH Geology Geosciences Multidisciplinary Wang, Jia Wang, Xin Zhang, Yanlin Ran, Weijie Zhang, Yong Wei, Junfeng Liu, Qiao Lei, Dongyu Simulation of Freeze-Thaw and Melting of Buried Ice in Longbasaba Moraine Dam in the Central Himalayas Between 1959 and 2100 Using COMSOL Multiphysics |
topic_facet |
soil temperature simulation moraine dam buried ice melting freeze-thaw process LAKE OUTBURST FLOOD ACTIVE LAYER PERMAFROST DISTRIBUTION DEGRADING PERMAFROST PROGLACIAL LAKES GLACIAL LAKES VOLUME EMBANKMENT TRANSPORT BREACH Geology Geosciences Multidisciplinary |
description |
Permafrost degradation increases the likelihood of glacial lake outburst floods on the Tibetan Plateau. Analyses of the freeze-thaw conditions in moraine dams and associated impacts on dam stability contribute toward reducing natural hazard risks. We used the heat transfer module of COMSOL Multiphysics to simulate the soil temperature field in the Longbasaba moraine dam, which is on the northern slope of central Himalaya. There is close agreement between the simulated and observed soil temperature values. Root mean squared errors (the square root of the mean of the square of all of the error) are below 1.30? and mean bias errors vary from -0.10 to -0.52? for the different soil layers. Between 1959 and 2020, active layer thickness increased at a mean annual rate of 0.024 m a(-1). Under the Coupled Model Intercomparison Project Phase 6 scenarios, the buried ice inside the moraine dam is clearly melting. The maximum-buried ice thaw depth is currently 3.4 m and at the end of the 21st century is projected to be 9.53, 16.69, and 21.83 m under SSP1-2.6, SSP2-4.5, and SSP5-8.5, which indicates a continuous decrease in moraine dam stability. |
format |
Report |
author |
Wang, Jia Wang, Xin Zhang, Yanlin Ran, Weijie Zhang, Yong Wei, Junfeng Liu, Qiao Lei, Dongyu |
author_facet |
Wang, Jia Wang, Xin Zhang, Yanlin Ran, Weijie Zhang, Yong Wei, Junfeng Liu, Qiao Lei, Dongyu |
author_sort |
Wang, Jia |
title |
Simulation of Freeze-Thaw and Melting of Buried Ice in Longbasaba Moraine Dam in the Central Himalayas Between 1959 and 2100 Using COMSOL Multiphysics |
title_short |
Simulation of Freeze-Thaw and Melting of Buried Ice in Longbasaba Moraine Dam in the Central Himalayas Between 1959 and 2100 Using COMSOL Multiphysics |
title_full |
Simulation of Freeze-Thaw and Melting of Buried Ice in Longbasaba Moraine Dam in the Central Himalayas Between 1959 and 2100 Using COMSOL Multiphysics |
title_fullStr |
Simulation of Freeze-Thaw and Melting of Buried Ice in Longbasaba Moraine Dam in the Central Himalayas Between 1959 and 2100 Using COMSOL Multiphysics |
title_full_unstemmed |
Simulation of Freeze-Thaw and Melting of Buried Ice in Longbasaba Moraine Dam in the Central Himalayas Between 1959 and 2100 Using COMSOL Multiphysics |
title_sort |
simulation of freeze-thaw and melting of buried ice in longbasaba moraine dam in the central himalayas between 1959 and 2100 using comsol multiphysics |
publisher |
AMER GEOPHYSICAL UNION |
publishDate |
2023 |
url |
http://ir.imde.ac.cn/handle/131551/57481 https://doi.org/10.1029/2022JF006848 |
long_lat |
ENVELOPE(-129.463,-129.463,58.259,58.259) |
geographic |
Glacial Lake |
geographic_facet |
Glacial Lake |
genre |
Active layer thickness Ice permafrost |
genre_facet |
Active layer thickness Ice permafrost |
op_relation |
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE http://ir.imde.ac.cn/handle/131551/57481 doi:10.1029/2022JF006848 |
op_doi |
https://doi.org/10.1029/2022JF006848 |
container_title |
Journal of Geophysical Research: Earth Surface |
container_volume |
128 |
container_issue |
3 |
_version_ |
1784272590405107712 |