Surface energy balance of sub‐Arctic roads with varying snow regimes and properties in permafrost regions
Abstract Surface energy balance (SEB) strongly influences the thermal state of permafrost, cryohydrological processes, and infrastructure stability. Road construction and snow accumulation affect the energy balance of underlying permafrost. Herein, we use an experimental road section of the Alaska H...
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crwiley:10.1002/ppp.2129 2024-06-23T07:50:32+00:00 Surface energy balance of sub‐Arctic roads with varying snow regimes and properties in permafrost regions Chen, Lin Voss, Clifford I. Fortier, Daniel McKenzie, Jeffrey M. Transport Canada 2021 http://dx.doi.org/10.1002/ppp.2129 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2129 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ppp.2129 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 32, issue 4, page 681-701 ISSN 1045-6740 1099-1530 journal-article 2021 crwiley https://doi.org/10.1002/ppp.2129 2024-06-04T06:48:27Z Abstract Surface energy balance (SEB) strongly influences the thermal state of permafrost, cryohydrological processes, and infrastructure stability. Road construction and snow accumulation affect the energy balance of underlying permafrost. Herein, we use an experimental road section of the Alaska Highway to develop a SEB model to quantify the surface energy components and ground surface temperature (GST) for different land cover types with varying snow regimes and properties. Simulated and measured ground temperatures are in good agreement, and our results show that the quantity of heat entering the embankment center and slope is mainly controlled by net radiation, and less by the sensible heat flux. In spring, lateral heat flux from the embankment center leads to earlier disappearance of snowpack on the embankment slope. In winter, the insulation created by the snow cover on the embankment slope reduces heat loss by a factor of three compared with the embankment center where the snow is plowed. The surface temperature offsets are 5.0°C and 7.8°C for the embankment center and slope, respectively. Furthermore, the heat flux released on the embankment slope exponentially decreases with increasing snow depth, and linearly decreases with earlier snow cover in fall and shorter snow‐covered period in spring. Article in Journal/Newspaper Arctic permafrost Permafrost and Periglacial Processes Alaska Wiley Online Library Arctic Permafrost and Periglacial Processes 32 4 681 701 |
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Wiley Online Library |
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English |
description |
Abstract Surface energy balance (SEB) strongly influences the thermal state of permafrost, cryohydrological processes, and infrastructure stability. Road construction and snow accumulation affect the energy balance of underlying permafrost. Herein, we use an experimental road section of the Alaska Highway to develop a SEB model to quantify the surface energy components and ground surface temperature (GST) for different land cover types with varying snow regimes and properties. Simulated and measured ground temperatures are in good agreement, and our results show that the quantity of heat entering the embankment center and slope is mainly controlled by net radiation, and less by the sensible heat flux. In spring, lateral heat flux from the embankment center leads to earlier disappearance of snowpack on the embankment slope. In winter, the insulation created by the snow cover on the embankment slope reduces heat loss by a factor of three compared with the embankment center where the snow is plowed. The surface temperature offsets are 5.0°C and 7.8°C for the embankment center and slope, respectively. Furthermore, the heat flux released on the embankment slope exponentially decreases with increasing snow depth, and linearly decreases with earlier snow cover in fall and shorter snow‐covered period in spring. |
author2 |
Transport Canada |
format |
Article in Journal/Newspaper |
author |
Chen, Lin Voss, Clifford I. Fortier, Daniel McKenzie, Jeffrey M. |
spellingShingle |
Chen, Lin Voss, Clifford I. Fortier, Daniel McKenzie, Jeffrey M. Surface energy balance of sub‐Arctic roads with varying snow regimes and properties in permafrost regions |
author_facet |
Chen, Lin Voss, Clifford I. Fortier, Daniel McKenzie, Jeffrey M. |
author_sort |
Chen, Lin |
title |
Surface energy balance of sub‐Arctic roads with varying snow regimes and properties in permafrost regions |
title_short |
Surface energy balance of sub‐Arctic roads with varying snow regimes and properties in permafrost regions |
title_full |
Surface energy balance of sub‐Arctic roads with varying snow regimes and properties in permafrost regions |
title_fullStr |
Surface energy balance of sub‐Arctic roads with varying snow regimes and properties in permafrost regions |
title_full_unstemmed |
Surface energy balance of sub‐Arctic roads with varying snow regimes and properties in permafrost regions |
title_sort |
surface energy balance of sub‐arctic roads with varying snow regimes and properties in permafrost regions |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1002/ppp.2129 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2129 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ppp.2129 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Permafrost and Periglacial Processes Alaska |
genre_facet |
Arctic permafrost Permafrost and Periglacial Processes Alaska |
op_source |
Permafrost and Periglacial Processes volume 32, issue 4, page 681-701 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.2129 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
32 |
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4 |
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681 |
op_container_end_page |
701 |
_version_ |
1802641436383903744 |