Scattering Characteristics of X-, C- and L-Band PolSAR Data Examined for the Tundra Environment of the Tuktoyaktuk Peninsula, Canada
In this study, polarimetric Synthetic Aperture Radar (PolSAR) data at X-, C- and L-Bands, acquired by the satellites: TerraSAR-X (2011), Radarsat-2 (2011), ALOS (2010) and ALOS-2 (2016), were used to characterize the tundra land cover of a test site located close to the town of Tuktoyaktuk, NWT, Can...
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ftdoajarticles:oai:doaj.org/article:9394dd6d1b5f4ac69cbfb4166f556bd4 2023-05-15T15:16:27+02:00 Scattering Characteristics of X-, C- and L-Band PolSAR Data Examined for the Tundra Environment of the Tuktoyaktuk Peninsula, Canada Tobias Ullmann Sarah N. Banks Andreas Schmitt Thomas Jagdhuber 2017-06-01T00:00:00Z https://doi.org/10.3390/app7060595 https://doaj.org/article/9394dd6d1b5f4ac69cbfb4166f556bd4 EN eng MDPI AG http://www.mdpi.com/2076-3417/7/6/595 https://doaj.org/toc/2076-3417 2076-3417 doi:10.3390/app7060595 https://doaj.org/article/9394dd6d1b5f4ac69cbfb4166f556bd4 Applied Sciences, Vol 7, Iss 6, p 595 (2017) PolSAR dual polarimetry quad polarimetry decomposition TerraSAR-X Radarsat-2 ALOS ALOS-2 tundra arctic Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 article 2017 ftdoajarticles https://doi.org/10.3390/app7060595 2022-12-31T14:54:00Z In this study, polarimetric Synthetic Aperture Radar (PolSAR) data at X-, C- and L-Bands, acquired by the satellites: TerraSAR-X (2011), Radarsat-2 (2011), ALOS (2010) and ALOS-2 (2016), were used to characterize the tundra land cover of a test site located close to the town of Tuktoyaktuk, NWT, Canada. Using available in situ ground data collected in 2010 and 2012, we investigate PolSAR scattering characteristics of common tundra land cover classes at X-, C- and L-Bands. Several decomposition features of quad-, co-, and cross-polarized data were compared, the correlation between them was investigated, and the class separability offered by their different feature spaces was analyzed. Certain PolSAR features at each wavelength were sensitive to the land cover and exhibited distinct scattering characteristics. Use of shorter wavelength imagery (X and C) was beneficial for the characterization of wetland and tundra vegetation, while L-Band data highlighted differences of the bare ground classes better. The Kennaugh Matrix decomposition applied in this study provided a unified framework to store, process, and analyze all data consistently, and the matrix offered a favorable feature space for class separation. Of all elements of the quad-polarized Kennaugh Matrix, the intensity based elements K0, K1, K2, K3 and K4 were found to be most valuable for class discrimination. These elements contributed to better class separation as indicated by an increase of the separability metrics squared Jefferys Matusita Distance and Transformed Divergence. The increase in separability was up to 57% for Radarsat-2 and up to 18% for ALOS-2 data. Article in Journal/Newspaper Arctic Tundra Directory of Open Access Journals: DOAJ Articles Arctic Canada Tuktoyaktuk ENVELOPE(-133.006,-133.006,69.425,69.425) Tuktoyaktuk Peninsula ENVELOPE(-131.339,-131.339,69.750,69.750) Applied Sciences 7 6 595 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
PolSAR dual polarimetry quad polarimetry decomposition TerraSAR-X Radarsat-2 ALOS ALOS-2 tundra arctic Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
PolSAR dual polarimetry quad polarimetry decomposition TerraSAR-X Radarsat-2 ALOS ALOS-2 tundra arctic Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Tobias Ullmann Sarah N. Banks Andreas Schmitt Thomas Jagdhuber Scattering Characteristics of X-, C- and L-Band PolSAR Data Examined for the Tundra Environment of the Tuktoyaktuk Peninsula, Canada |
topic_facet |
PolSAR dual polarimetry quad polarimetry decomposition TerraSAR-X Radarsat-2 ALOS ALOS-2 tundra arctic Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 |
description |
In this study, polarimetric Synthetic Aperture Radar (PolSAR) data at X-, C- and L-Bands, acquired by the satellites: TerraSAR-X (2011), Radarsat-2 (2011), ALOS (2010) and ALOS-2 (2016), were used to characterize the tundra land cover of a test site located close to the town of Tuktoyaktuk, NWT, Canada. Using available in situ ground data collected in 2010 and 2012, we investigate PolSAR scattering characteristics of common tundra land cover classes at X-, C- and L-Bands. Several decomposition features of quad-, co-, and cross-polarized data were compared, the correlation between them was investigated, and the class separability offered by their different feature spaces was analyzed. Certain PolSAR features at each wavelength were sensitive to the land cover and exhibited distinct scattering characteristics. Use of shorter wavelength imagery (X and C) was beneficial for the characterization of wetland and tundra vegetation, while L-Band data highlighted differences of the bare ground classes better. The Kennaugh Matrix decomposition applied in this study provided a unified framework to store, process, and analyze all data consistently, and the matrix offered a favorable feature space for class separation. Of all elements of the quad-polarized Kennaugh Matrix, the intensity based elements K0, K1, K2, K3 and K4 were found to be most valuable for class discrimination. These elements contributed to better class separation as indicated by an increase of the separability metrics squared Jefferys Matusita Distance and Transformed Divergence. The increase in separability was up to 57% for Radarsat-2 and up to 18% for ALOS-2 data. |
format |
Article in Journal/Newspaper |
author |
Tobias Ullmann Sarah N. Banks Andreas Schmitt Thomas Jagdhuber |
author_facet |
Tobias Ullmann Sarah N. Banks Andreas Schmitt Thomas Jagdhuber |
author_sort |
Tobias Ullmann Sarah N. Banks |
title |
Scattering Characteristics of X-, C- and L-Band PolSAR Data Examined for the Tundra Environment of the Tuktoyaktuk Peninsula, Canada |
title_short |
Scattering Characteristics of X-, C- and L-Band PolSAR Data Examined for the Tundra Environment of the Tuktoyaktuk Peninsula, Canada |
title_full |
Scattering Characteristics of X-, C- and L-Band PolSAR Data Examined for the Tundra Environment of the Tuktoyaktuk Peninsula, Canada |
title_fullStr |
Scattering Characteristics of X-, C- and L-Band PolSAR Data Examined for the Tundra Environment of the Tuktoyaktuk Peninsula, Canada |
title_full_unstemmed |
Scattering Characteristics of X-, C- and L-Band PolSAR Data Examined for the Tundra Environment of the Tuktoyaktuk Peninsula, Canada |
title_sort |
scattering characteristics of x-, c- and l-band polsar data examined for the tundra environment of the tuktoyaktuk peninsula, canada |
publisher |
MDPI AG |
publishDate |
2017 |
url |
https://doi.org/10.3390/app7060595 https://doaj.org/article/9394dd6d1b5f4ac69cbfb4166f556bd4 |
long_lat |
ENVELOPE(-133.006,-133.006,69.425,69.425) ENVELOPE(-131.339,-131.339,69.750,69.750) |
geographic |
Arctic Canada Tuktoyaktuk Tuktoyaktuk Peninsula |
geographic_facet |
Arctic Canada Tuktoyaktuk Tuktoyaktuk Peninsula |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
Applied Sciences, Vol 7, Iss 6, p 595 (2017) |
op_relation |
http://www.mdpi.com/2076-3417/7/6/595 https://doaj.org/toc/2076-3417 2076-3417 doi:10.3390/app7060595 https://doaj.org/article/9394dd6d1b5f4ac69cbfb4166f556bd4 |
op_doi |
https://doi.org/10.3390/app7060595 |
container_title |
Applied Sciences |
container_volume |
7 |
container_issue |
6 |
container_start_page |
595 |
_version_ |
1766346742252437504 |