Monitoring of subarctic shrub vegetation characteristics using terraSAR-X and RADARSAT-2 data.
Due to its sensitivity to the vertical structure of vegetation, SAR remote sensing has the potential to become a useful tool to map changes in shrub vegetation in subarctic environments. In this paper we evaluate the sensitivity of RADARSAT-2 and TerraSAR-X data to subarctic shrub vegetation. Backsc...
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2014
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Online Access: | https://espace.inrs.ca/id/eprint/4818/ https://espace.inrs.ca/id/eprint/4818/1/S3026.pdf |
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ftinrsquebec:oai:espace.inrs.ca:4818 2023-05-15T18:27:48+02:00 Monitoring of subarctic shrub vegetation characteristics using terraSAR-X and RADARSAT-2 data. Duguay, Yannick Bernier, Monique Lévesque, Esther Tremblay, Benoît 2014 application/pdf https://espace.inrs.ca/id/eprint/4818/ https://espace.inrs.ca/id/eprint/4818/1/S3026.pdf en eng https://espace.inrs.ca/id/eprint/4818/1/S3026.pdf Duguay, Yannick, Bernier, Monique, Lévesque, Esther et Tremblay, Benoît (2014). Monitoring of subarctic shrub vegetation characteristics using terraSAR-X and RADARSAT-2 data. In: IEEE International Geoscience and Remote Sensing Symposium - IGARSS 2014, 13-18 juillet 2014, Québec, Canada. SAR Shrub Subarctic RADARSAT-2 TerraSAR-X Document issu d'une conférence ou d'un atelier Non évalué par les pairs 2014 ftinrsquebec 2023-02-10T11:43:14Z Due to its sensitivity to the vertical structure of vegetation, SAR remote sensing has the potential to become a useful tool to map changes in shrub vegetation in subarctic environments. In this paper we evaluate the sensitivity of RADARSAT-2 and TerraSAR-X data to subarctic shrub vegetation. Backscattering was compared with field measurements of shrub height and regression analyses were performed to estimate the sensitivity of SAR signal to shrub height. An unsupervised Wishart classification was also performed on the RADARSAT-2 images to evaluate the separability between shrubs and other elements of the environment. RADARSAT-2 proved to be the most sensitive to shrub height with R² values reaching 0.64 for σ0 HV for fall acquisitions and losing little sensitivity during the winter. The unsupervised classification provided good separability between shrub dominated areas and other land cover types and was able to distinguish high shrubs from low shrubs. Other/Unknown Material Subarctic Institut national de la recherche scientifique, Québec: Espace INRS |
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Open Polar |
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Institut national de la recherche scientifique, Québec: Espace INRS |
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ftinrsquebec |
language |
English |
topic |
SAR Shrub Subarctic RADARSAT-2 TerraSAR-X |
spellingShingle |
SAR Shrub Subarctic RADARSAT-2 TerraSAR-X Duguay, Yannick Bernier, Monique Lévesque, Esther Tremblay, Benoît Monitoring of subarctic shrub vegetation characteristics using terraSAR-X and RADARSAT-2 data. |
topic_facet |
SAR Shrub Subarctic RADARSAT-2 TerraSAR-X |
description |
Due to its sensitivity to the vertical structure of vegetation, SAR remote sensing has the potential to become a useful tool to map changes in shrub vegetation in subarctic environments. In this paper we evaluate the sensitivity of RADARSAT-2 and TerraSAR-X data to subarctic shrub vegetation. Backscattering was compared with field measurements of shrub height and regression analyses were performed to estimate the sensitivity of SAR signal to shrub height. An unsupervised Wishart classification was also performed on the RADARSAT-2 images to evaluate the separability between shrubs and other elements of the environment. RADARSAT-2 proved to be the most sensitive to shrub height with R² values reaching 0.64 for σ0 HV for fall acquisitions and losing little sensitivity during the winter. The unsupervised classification provided good separability between shrub dominated areas and other land cover types and was able to distinguish high shrubs from low shrubs. |
format |
Other/Unknown Material |
author |
Duguay, Yannick Bernier, Monique Lévesque, Esther Tremblay, Benoît |
author_facet |
Duguay, Yannick Bernier, Monique Lévesque, Esther Tremblay, Benoît |
author_sort |
Duguay, Yannick |
title |
Monitoring of subarctic shrub vegetation characteristics using terraSAR-X and RADARSAT-2 data. |
title_short |
Monitoring of subarctic shrub vegetation characteristics using terraSAR-X and RADARSAT-2 data. |
title_full |
Monitoring of subarctic shrub vegetation characteristics using terraSAR-X and RADARSAT-2 data. |
title_fullStr |
Monitoring of subarctic shrub vegetation characteristics using terraSAR-X and RADARSAT-2 data. |
title_full_unstemmed |
Monitoring of subarctic shrub vegetation characteristics using terraSAR-X and RADARSAT-2 data. |
title_sort |
monitoring of subarctic shrub vegetation characteristics using terrasar-x and radarsat-2 data. |
publishDate |
2014 |
url |
https://espace.inrs.ca/id/eprint/4818/ https://espace.inrs.ca/id/eprint/4818/1/S3026.pdf |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
https://espace.inrs.ca/id/eprint/4818/1/S3026.pdf Duguay, Yannick, Bernier, Monique, Lévesque, Esther et Tremblay, Benoît (2014). Monitoring of subarctic shrub vegetation characteristics using terraSAR-X and RADARSAT-2 data. In: IEEE International Geoscience and Remote Sensing Symposium - IGARSS 2014, 13-18 juillet 2014, Québec, Canada. |
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1766209987500048384 |