Monitoring surface changes in discontinuous permafrost terrain using small baseline SAR interferometry, object-based classification, and geological features: a case study from Mayo, Yukon Territory, Canada
Permafrost-induced deformation of ground features is threating infrastructure in northern communities. An understanding of permafrost distribution is therefore critical for sustainable adaptation planning and infrastructure maintenance. Considering the large area underlain by permafrost in the Yukon...
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Taylor & Francis Group
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ftdoajarticles:oai:doaj.org/article:828eaddf59944bc2a7955fed49e13175 2023-10-09T21:53:27+02:00 Monitoring surface changes in discontinuous permafrost terrain using small baseline SAR interferometry, object-based classification, and geological features: a case study from Mayo, Yukon Territory, Canada Fariba Mohammadimanesh Bahram Salehi Masoud Mahdianpari Jerry English Joseph Chamberland Pierre-Jean Alasset 2019-05-01T00:00:00Z https://doi.org/10.1080/15481603.2018.1513444 https://doaj.org/article/828eaddf59944bc2a7955fed49e13175 EN eng Taylor & Francis Group http://dx.doi.org/10.1080/15481603.2018.1513444 https://doaj.org/toc/1548-1603 https://doaj.org/toc/1943-7226 1548-1603 1943-7226 doi:10.1080/15481603.2018.1513444 https://doaj.org/article/828eaddf59944bc2a7955fed49e13175 GIScience & Remote Sensing, Vol 56, Iss 4, Pp 485-510 (2019) permafrost interferometric sar small baseline subset radarsat-2 random forest classification geology Mathematical geography. Cartography GA1-1776 Environmental sciences GE1-350 article 2019 ftdoajarticles https://doi.org/10.1080/15481603.2018.1513444 2023-09-24T00:36:59Z Permafrost-induced deformation of ground features is threating infrastructure in northern communities. An understanding of permafrost distribution is therefore critical for sustainable adaptation planning and infrastructure maintenance. Considering the large area underlain by permafrost in the Yukon Territory, there is a need for baseline information to characterize the permafrost in this region. In this study, the Differential Interferometric Synthetic Aperture Radar (DInSAR) technique was used to identify areas of ground movement likely caused by changes in permafrost. The DInSAR technique was applied to a series of repeat-pass C-band RADARSAT-2 observations collected in 2015 over the Village of Mayo, in central Yukon Territory, Canada. The conventional DInSAR technique demonstrated that ground deformation could be detected in this area, but the resulting deformation maps contained errors due to a loss of coherence from changes in vegetation and atmospheric phase delay. To address these limitations, the Small BAseline Subset (SBAS) InSAR technique was applied to reduce phase error, thus improving the deformation maps. To understand the relationship between the deformation maps and land cover types, an object-based Random Forest classification was developed to classify the study area into different land cover types. Integration of the InSAR results and the classification map revealed that the built-up class (e.g., airport) was affected by subsidence on the order of −2 to −4 cm. The spatial extent of the surface displacement map obtained using the SBAS InSAR technique was then correlated with the surficial geology map. This revealed that much of the main infrastructure in the Village of Mayo is underlain by interbedded glaciofluvial and glaciolacustrine sediments, the latter of which caused the most damage to human made structures. This study provides a method for permafrost monitoring that builds upon the synergistic use of the SBAS InSAR technique, object-based image analysis, and surficial geology data. Article in Journal/Newspaper Mayo permafrost Yukon Directory of Open Access Journals: DOAJ Articles Canada Yukon GIScience & Remote Sensing 56 4 485 510 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
permafrost interferometric sar small baseline subset radarsat-2 random forest classification geology Mathematical geography. Cartography GA1-1776 Environmental sciences GE1-350 |
spellingShingle |
permafrost interferometric sar small baseline subset radarsat-2 random forest classification geology Mathematical geography. Cartography GA1-1776 Environmental sciences GE1-350 Fariba Mohammadimanesh Bahram Salehi Masoud Mahdianpari Jerry English Joseph Chamberland Pierre-Jean Alasset Monitoring surface changes in discontinuous permafrost terrain using small baseline SAR interferometry, object-based classification, and geological features: a case study from Mayo, Yukon Territory, Canada |
topic_facet |
permafrost interferometric sar small baseline subset radarsat-2 random forest classification geology Mathematical geography. Cartography GA1-1776 Environmental sciences GE1-350 |
description |
Permafrost-induced deformation of ground features is threating infrastructure in northern communities. An understanding of permafrost distribution is therefore critical for sustainable adaptation planning and infrastructure maintenance. Considering the large area underlain by permafrost in the Yukon Territory, there is a need for baseline information to characterize the permafrost in this region. In this study, the Differential Interferometric Synthetic Aperture Radar (DInSAR) technique was used to identify areas of ground movement likely caused by changes in permafrost. The DInSAR technique was applied to a series of repeat-pass C-band RADARSAT-2 observations collected in 2015 over the Village of Mayo, in central Yukon Territory, Canada. The conventional DInSAR technique demonstrated that ground deformation could be detected in this area, but the resulting deformation maps contained errors due to a loss of coherence from changes in vegetation and atmospheric phase delay. To address these limitations, the Small BAseline Subset (SBAS) InSAR technique was applied to reduce phase error, thus improving the deformation maps. To understand the relationship between the deformation maps and land cover types, an object-based Random Forest classification was developed to classify the study area into different land cover types. Integration of the InSAR results and the classification map revealed that the built-up class (e.g., airport) was affected by subsidence on the order of −2 to −4 cm. The spatial extent of the surface displacement map obtained using the SBAS InSAR technique was then correlated with the surficial geology map. This revealed that much of the main infrastructure in the Village of Mayo is underlain by interbedded glaciofluvial and glaciolacustrine sediments, the latter of which caused the most damage to human made structures. This study provides a method for permafrost monitoring that builds upon the synergistic use of the SBAS InSAR technique, object-based image analysis, and surficial geology data. |
format |
Article in Journal/Newspaper |
author |
Fariba Mohammadimanesh Bahram Salehi Masoud Mahdianpari Jerry English Joseph Chamberland Pierre-Jean Alasset |
author_facet |
Fariba Mohammadimanesh Bahram Salehi Masoud Mahdianpari Jerry English Joseph Chamberland Pierre-Jean Alasset |
author_sort |
Fariba Mohammadimanesh |
title |
Monitoring surface changes in discontinuous permafrost terrain using small baseline SAR interferometry, object-based classification, and geological features: a case study from Mayo, Yukon Territory, Canada |
title_short |
Monitoring surface changes in discontinuous permafrost terrain using small baseline SAR interferometry, object-based classification, and geological features: a case study from Mayo, Yukon Territory, Canada |
title_full |
Monitoring surface changes in discontinuous permafrost terrain using small baseline SAR interferometry, object-based classification, and geological features: a case study from Mayo, Yukon Territory, Canada |
title_fullStr |
Monitoring surface changes in discontinuous permafrost terrain using small baseline SAR interferometry, object-based classification, and geological features: a case study from Mayo, Yukon Territory, Canada |
title_full_unstemmed |
Monitoring surface changes in discontinuous permafrost terrain using small baseline SAR interferometry, object-based classification, and geological features: a case study from Mayo, Yukon Territory, Canada |
title_sort |
monitoring surface changes in discontinuous permafrost terrain using small baseline sar interferometry, object-based classification, and geological features: a case study from mayo, yukon territory, canada |
publisher |
Taylor & Francis Group |
publishDate |
2019 |
url |
https://doi.org/10.1080/15481603.2018.1513444 https://doaj.org/article/828eaddf59944bc2a7955fed49e13175 |
geographic |
Canada Yukon |
geographic_facet |
Canada Yukon |
genre |
Mayo permafrost Yukon |
genre_facet |
Mayo permafrost Yukon |
op_source |
GIScience & Remote Sensing, Vol 56, Iss 4, Pp 485-510 (2019) |
op_relation |
http://dx.doi.org/10.1080/15481603.2018.1513444 https://doaj.org/toc/1548-1603 https://doaj.org/toc/1943-7226 1548-1603 1943-7226 doi:10.1080/15481603.2018.1513444 https://doaj.org/article/828eaddf59944bc2a7955fed49e13175 |
op_doi |
https://doi.org/10.1080/15481603.2018.1513444 |
container_title |
GIScience & Remote Sensing |
container_volume |
56 |
container_issue |
4 |
container_start_page |
485 |
op_container_end_page |
510 |
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1779316717165477888 |