Potential of C and X Band SAR for Shrub Growth Monitoring in Sub-Arctic Environments.
The Arctic and sub-Arctic environments have seen a rapid growth of shrub vegetation at the expense of the Arctic tundra in recent decades. In order to develop better tools to assess and understand this phenomenon, the sensitivity of multi-polarized SAR backscattering at C and X band to shrub density...
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Online Access: | https://espace.inrs.ca/id/eprint/3843/ https://espace.inrs.ca/id/eprint/3843/1/P2755.pdf https://doi.org/10.3390/rs70709410 |
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ftinrsquebec:oai:espace.inrs.ca:3843 2023-05-15T14:25:56+02:00 Potential of C and X Band SAR for Shrub Growth Monitoring in Sub-Arctic Environments. Duguay, Yannick Bernier, Monique Lévesque, Esther Tremblay, Benoît 2015 application/pdf https://espace.inrs.ca/id/eprint/3843/ https://espace.inrs.ca/id/eprint/3843/1/P2755.pdf https://doi.org/10.3390/rs70709410 en eng https://espace.inrs.ca/id/eprint/3843/1/P2755.pdf Duguay, Yannick, Bernier, Monique, Lévesque, Esther et Tremblay, Benoît (2015). Potential of C and X Band SAR for Shrub Growth Monitoring in Sub-Arctic Environments. Remote Sensing , vol. 7 , nº 7. p. 9410-9430. DOI:10.3390/rs70709410 <https://doi.org/10.3390/rs70709410>. doi:10.3390/rs70709410 ub vegetation sub-Arctic environments SAR RADARSAT-2 TerraSAR-X Article Évalué par les pairs 2015 ftinrsquebec https://doi.org/10.3390/rs70709410 2023-02-10T11:42:42Z The Arctic and sub-Arctic environments have seen a rapid growth of shrub vegetation at the expense of the Arctic tundra in recent decades. In order to develop better tools to assess and understand this phenomenon, the sensitivity of multi-polarized SAR backscattering at C and X band to shrub density and height is studied under various conditions. RADARSAT-2 and TerraSAR-X images were acquired from November 2011 to March 2012 over the Umiujaq community in northern Quebec (56.55°N, 76.55°W) and compared to in situ measurements of shrub vegetation density and height collected during the summer of 2009. The results show that σ0 is sensitive to changes in shrub coverage up to 20% and is sensitive to changes in shrub height up to around 1 m. The cross-polarized backscattering (σ⁰ HV ) displays the best sensitivity to both shrub height and density, and RADARSAT-2 is more sensitive to shrub height, as TerraSAR-X tends to saturate more rapidly with increasing volume scattering from the shrub branches. These results demonstrate that SAR data could provide essential information, not only on Remote Sens. 2015, 7 9411 the spatial expansion of shrub vegetation, but also on its vertical growth, especially at early stages of colonization. Article in Journal/Newspaper Arctic Arctic Tundra Umiujaq Institut national de la recherche scientifique, Québec: Espace INRS Arctic Umiujaq ENVELOPE(-76.549,-76.549,56.553,56.553) Remote Sensing 7 7 9410 9430 |
institution |
Open Polar |
collection |
Institut national de la recherche scientifique, Québec: Espace INRS |
op_collection_id |
ftinrsquebec |
language |
English |
topic |
ub vegetation sub-Arctic environments SAR RADARSAT-2 TerraSAR-X |
spellingShingle |
ub vegetation sub-Arctic environments SAR RADARSAT-2 TerraSAR-X Duguay, Yannick Bernier, Monique Lévesque, Esther Tremblay, Benoît Potential of C and X Band SAR for Shrub Growth Monitoring in Sub-Arctic Environments. |
topic_facet |
ub vegetation sub-Arctic environments SAR RADARSAT-2 TerraSAR-X |
description |
The Arctic and sub-Arctic environments have seen a rapid growth of shrub vegetation at the expense of the Arctic tundra in recent decades. In order to develop better tools to assess and understand this phenomenon, the sensitivity of multi-polarized SAR backscattering at C and X band to shrub density and height is studied under various conditions. RADARSAT-2 and TerraSAR-X images were acquired from November 2011 to March 2012 over the Umiujaq community in northern Quebec (56.55°N, 76.55°W) and compared to in situ measurements of shrub vegetation density and height collected during the summer of 2009. The results show that σ0 is sensitive to changes in shrub coverage up to 20% and is sensitive to changes in shrub height up to around 1 m. The cross-polarized backscattering (σ⁰ HV ) displays the best sensitivity to both shrub height and density, and RADARSAT-2 is more sensitive to shrub height, as TerraSAR-X tends to saturate more rapidly with increasing volume scattering from the shrub branches. These results demonstrate that SAR data could provide essential information, not only on Remote Sens. 2015, 7 9411 the spatial expansion of shrub vegetation, but also on its vertical growth, especially at early stages of colonization. |
format |
Article in Journal/Newspaper |
author |
Duguay, Yannick Bernier, Monique Lévesque, Esther Tremblay, Benoît |
author_facet |
Duguay, Yannick Bernier, Monique Lévesque, Esther Tremblay, Benoît |
author_sort |
Duguay, Yannick |
title |
Potential of C and X Band SAR for Shrub Growth Monitoring in Sub-Arctic Environments. |
title_short |
Potential of C and X Band SAR for Shrub Growth Monitoring in Sub-Arctic Environments. |
title_full |
Potential of C and X Band SAR for Shrub Growth Monitoring in Sub-Arctic Environments. |
title_fullStr |
Potential of C and X Band SAR for Shrub Growth Monitoring in Sub-Arctic Environments. |
title_full_unstemmed |
Potential of C and X Band SAR for Shrub Growth Monitoring in Sub-Arctic Environments. |
title_sort |
potential of c and x band sar for shrub growth monitoring in sub-arctic environments. |
publishDate |
2015 |
url |
https://espace.inrs.ca/id/eprint/3843/ https://espace.inrs.ca/id/eprint/3843/1/P2755.pdf https://doi.org/10.3390/rs70709410 |
long_lat |
ENVELOPE(-76.549,-76.549,56.553,56.553) |
geographic |
Arctic Umiujaq |
geographic_facet |
Arctic Umiujaq |
genre |
Arctic Arctic Tundra Umiujaq |
genre_facet |
Arctic Arctic Tundra Umiujaq |
op_relation |
https://espace.inrs.ca/id/eprint/3843/1/P2755.pdf Duguay, Yannick, Bernier, Monique, Lévesque, Esther et Tremblay, Benoît (2015). Potential of C and X Band SAR for Shrub Growth Monitoring in Sub-Arctic Environments. Remote Sensing , vol. 7 , nº 7. p. 9410-9430. DOI:10.3390/rs70709410 <https://doi.org/10.3390/rs70709410>. doi:10.3390/rs70709410 |
op_doi |
https://doi.org/10.3390/rs70709410 |
container_title |
Remote Sensing |
container_volume |
7 |
container_issue |
7 |
container_start_page |
9410 |
op_container_end_page |
9430 |
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1766298425556467712 |