Utilizing vegetation indices as a proxy to characterize the stability of a railway embankment in a permafrost region
Degrading permafrost conditions around the world are posing stability issues for infrastructure constructed on them. Railway lines have exceptionally low tolerances for differential settlements associated with permafrost degradation due to the potential for train derailments. Railway owners with tra...
Main Authors: | , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
Digital Commons @ Michigan Tech
2016
|
Subjects: | |
Online Access: | https://digitalcommons.mtu.edu/michigantech-p/988 https://digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=1988&context=michigantech-p |
id |
ftmichigantuniv:oai:digitalcommons.mtu.edu:michigantech-p-1988 |
---|---|
record_format |
openpolar |
spelling |
ftmichigantuniv:oai:digitalcommons.mtu.edu:michigantech-p-1988 2023-05-15T16:35:29+02:00 Utilizing vegetation indices as a proxy to characterize the stability of a railway embankment in a permafrost region Addison, Priscilla Lautala, Pasi T. Oommen, Thomas 2016-11-10T08:00:00Z application/pdf https://digitalcommons.mtu.edu/michigantech-p/988 https://digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=1988&context=michigantech-p unknown Digital Commons @ Michigan Tech https://digitalcommons.mtu.edu/michigantech-p/988 https://digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=1988&context=michigantech-p http://creativecommons.org/licenses/by/4.0/ CC-BY Michigan Tech Publications Site characterization permafrost remote sensing track geometry electrical resistivity degradation susceptibility NDVI Center for Data Sciences Department of Geological and Mining Engineering and Sciences Computer Sciences Geological Engineering Mining Engineering text 2016 ftmichigantuniv 2022-01-23T10:39:06Z Degrading permafrost conditions around the world are posing stability issues for infrastructure constructed on them. Railway lines have exceptionally low tolerances for differential settlements associated with permafrost degradation due to the potential for train derailments. Railway owners with tracks in permafrost regions therefore make it a priority to identify potential settlement locations so that proper maintenance or embankment stabilization measures can be applied to ensure smooth and safe operations. The extensive discontinuous permafrost zone along the Hudson Bay Railway (HBR) in Northern Manitoba, Canada, has been experiencing accelerated deterioration, resulting in differential settlements that necessitate continuous annual maintenance to avoid slow orders and operational interruptions. This paper seeks to characterize the different permafrost degradation susceptibilities present at the study site. Track geometry exceptions were compared against remotely sensed vegetation indices to establish a relationship between track quality and vegetation density. This relationship was used as a proxy for subsurface condition verified by electrical resistivity tomography. The established relationship was then used to develop a three-level degradation susceptibility chart to indicate low, moderate and high susceptibility regions. The defined susceptibility regions can be used to better allocate the limited maintenance resources and also help inform potentially long-term stabilization measures for the severely affected sections. Text Hudson Bay permafrost Michigan Technological University: Digital Commons @ Michigan Tech Canada Hudson Hudson Bay |
institution |
Open Polar |
collection |
Michigan Technological University: Digital Commons @ Michigan Tech |
op_collection_id |
ftmichigantuniv |
language |
unknown |
topic |
Site characterization permafrost remote sensing track geometry electrical resistivity degradation susceptibility NDVI Center for Data Sciences Department of Geological and Mining Engineering and Sciences Computer Sciences Geological Engineering Mining Engineering |
spellingShingle |
Site characterization permafrost remote sensing track geometry electrical resistivity degradation susceptibility NDVI Center for Data Sciences Department of Geological and Mining Engineering and Sciences Computer Sciences Geological Engineering Mining Engineering Addison, Priscilla Lautala, Pasi T. Oommen, Thomas Utilizing vegetation indices as a proxy to characterize the stability of a railway embankment in a permafrost region |
topic_facet |
Site characterization permafrost remote sensing track geometry electrical resistivity degradation susceptibility NDVI Center for Data Sciences Department of Geological and Mining Engineering and Sciences Computer Sciences Geological Engineering Mining Engineering |
description |
Degrading permafrost conditions around the world are posing stability issues for infrastructure constructed on them. Railway lines have exceptionally low tolerances for differential settlements associated with permafrost degradation due to the potential for train derailments. Railway owners with tracks in permafrost regions therefore make it a priority to identify potential settlement locations so that proper maintenance or embankment stabilization measures can be applied to ensure smooth and safe operations. The extensive discontinuous permafrost zone along the Hudson Bay Railway (HBR) in Northern Manitoba, Canada, has been experiencing accelerated deterioration, resulting in differential settlements that necessitate continuous annual maintenance to avoid slow orders and operational interruptions. This paper seeks to characterize the different permafrost degradation susceptibilities present at the study site. Track geometry exceptions were compared against remotely sensed vegetation indices to establish a relationship between track quality and vegetation density. This relationship was used as a proxy for subsurface condition verified by electrical resistivity tomography. The established relationship was then used to develop a three-level degradation susceptibility chart to indicate low, moderate and high susceptibility regions. The defined susceptibility regions can be used to better allocate the limited maintenance resources and also help inform potentially long-term stabilization measures for the severely affected sections. |
format |
Text |
author |
Addison, Priscilla Lautala, Pasi T. Oommen, Thomas |
author_facet |
Addison, Priscilla Lautala, Pasi T. Oommen, Thomas |
author_sort |
Addison, Priscilla |
title |
Utilizing vegetation indices as a proxy to characterize the stability of a railway embankment in a permafrost region |
title_short |
Utilizing vegetation indices as a proxy to characterize the stability of a railway embankment in a permafrost region |
title_full |
Utilizing vegetation indices as a proxy to characterize the stability of a railway embankment in a permafrost region |
title_fullStr |
Utilizing vegetation indices as a proxy to characterize the stability of a railway embankment in a permafrost region |
title_full_unstemmed |
Utilizing vegetation indices as a proxy to characterize the stability of a railway embankment in a permafrost region |
title_sort |
utilizing vegetation indices as a proxy to characterize the stability of a railway embankment in a permafrost region |
publisher |
Digital Commons @ Michigan Tech |
publishDate |
2016 |
url |
https://digitalcommons.mtu.edu/michigantech-p/988 https://digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=1988&context=michigantech-p |
geographic |
Canada Hudson Hudson Bay |
geographic_facet |
Canada Hudson Hudson Bay |
genre |
Hudson Bay permafrost |
genre_facet |
Hudson Bay permafrost |
op_source |
Michigan Tech Publications |
op_relation |
https://digitalcommons.mtu.edu/michigantech-p/988 https://digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=1988&context=michigantech-p |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
_version_ |
1766025712937992192 |