Comparison of ice/water classification in Fram Strait from C- A nd L-band SAR imagery
In this paper an algorithm for ice/water classification of C- A nd L-band dual polarization synthetic aperture radar data is presented. A comparison of the two different frequencies is made in order to investigate the potential to improve classification results with multi-frequency data. The algorit...
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Online Access: | https://doi.org/10.1017/aog.2018.7 https://research.chalmers.se/en/publication/0818bf50-cdeb-4fef-8bde-906c2022c2c7 |
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ftchalmersuniv:oai:research.chalmers.se:504649 2023-05-15T16:18:07+02:00 Comparison of ice/water classification in Fram Strait from C- A nd L-band SAR imagery Aldenhoff, Wiebke Heuzé, Céline Eriksson, Leif 2018 text https://doi.org/10.1017/aog.2018.7 https://research.chalmers.se/en/publication/0818bf50-cdeb-4fef-8bde-906c2022c2c7 unknown http://dx.doi.org/10.1017/aog.2018.7 https://research.chalmers.se/en/publication/0818bf50-cdeb-4fef-8bde-906c2022c2c7 Remote Sensing Geophysics Geosciences Multidisciplinary polar and subpolar oceans sea ice ice and climate 2018 ftchalmersuniv https://doi.org/10.1017/aog.2018.7 2022-12-11T07:11:10Z In this paper an algorithm for ice/water classification of C- A nd L-band dual polarization synthetic aperture radar data is presented. A comparison of the two different frequencies is made in order to investigate the potential to improve classification results with multi-frequency data. The algorithm is based on backscatter intensities in co- A nd cross-polarization and autocorrelation as a texture feature. The mapping between image features and ice/water classification is made with a neural network. Accurate ice/water maps for both frequencies are produced by the algorithm and the results of two frequencies generally agree very well. Differences are found in the marginal ice zone, where the time difference between acquisitions causes motion of the ice pack. C-band reliably reproduces the outline of the ice edge, while L-band has its strengths for thin ice/calm water areas within the icepack. The classification shows good agreement with ice/water maps derived from met.no ice-charts and radiometer data from AMSR-2. Variations are found in the marginal ice zone where the generalization of the ice charts and lower accuracy of ice concentration from radiometer data introduce deviations. Usage of high-resolution dual frequency data could be beneficial for improving ice cover information for navigation and modelling. Other/Unknown Material Fram Strait ice pack Sea ice Chalmers University of Technology: Chalmers research Annals of Glaciology 59 76pt2 112 123 |
institution |
Open Polar |
collection |
Chalmers University of Technology: Chalmers research |
op_collection_id |
ftchalmersuniv |
language |
unknown |
topic |
Remote Sensing Geophysics Geosciences Multidisciplinary polar and subpolar oceans sea ice ice and climate |
spellingShingle |
Remote Sensing Geophysics Geosciences Multidisciplinary polar and subpolar oceans sea ice ice and climate Aldenhoff, Wiebke Heuzé, Céline Eriksson, Leif Comparison of ice/water classification in Fram Strait from C- A nd L-band SAR imagery |
topic_facet |
Remote Sensing Geophysics Geosciences Multidisciplinary polar and subpolar oceans sea ice ice and climate |
description |
In this paper an algorithm for ice/water classification of C- A nd L-band dual polarization synthetic aperture radar data is presented. A comparison of the two different frequencies is made in order to investigate the potential to improve classification results with multi-frequency data. The algorithm is based on backscatter intensities in co- A nd cross-polarization and autocorrelation as a texture feature. The mapping between image features and ice/water classification is made with a neural network. Accurate ice/water maps for both frequencies are produced by the algorithm and the results of two frequencies generally agree very well. Differences are found in the marginal ice zone, where the time difference between acquisitions causes motion of the ice pack. C-band reliably reproduces the outline of the ice edge, while L-band has its strengths for thin ice/calm water areas within the icepack. The classification shows good agreement with ice/water maps derived from met.no ice-charts and radiometer data from AMSR-2. Variations are found in the marginal ice zone where the generalization of the ice charts and lower accuracy of ice concentration from radiometer data introduce deviations. Usage of high-resolution dual frequency data could be beneficial for improving ice cover information for navigation and modelling. |
author |
Aldenhoff, Wiebke Heuzé, Céline Eriksson, Leif |
author_facet |
Aldenhoff, Wiebke Heuzé, Céline Eriksson, Leif |
author_sort |
Aldenhoff, Wiebke |
title |
Comparison of ice/water classification in Fram Strait from C- A nd L-band SAR imagery |
title_short |
Comparison of ice/water classification in Fram Strait from C- A nd L-band SAR imagery |
title_full |
Comparison of ice/water classification in Fram Strait from C- A nd L-band SAR imagery |
title_fullStr |
Comparison of ice/water classification in Fram Strait from C- A nd L-band SAR imagery |
title_full_unstemmed |
Comparison of ice/water classification in Fram Strait from C- A nd L-band SAR imagery |
title_sort |
comparison of ice/water classification in fram strait from c- a nd l-band sar imagery |
publishDate |
2018 |
url |
https://doi.org/10.1017/aog.2018.7 https://research.chalmers.se/en/publication/0818bf50-cdeb-4fef-8bde-906c2022c2c7 |
genre |
Fram Strait ice pack Sea ice |
genre_facet |
Fram Strait ice pack Sea ice |
op_relation |
http://dx.doi.org/10.1017/aog.2018.7 https://research.chalmers.se/en/publication/0818bf50-cdeb-4fef-8bde-906c2022c2c7 |
op_doi |
https://doi.org/10.1017/aog.2018.7 |
container_title |
Annals of Glaciology |
container_volume |
59 |
container_issue |
76pt2 |
container_start_page |
112 |
op_container_end_page |
123 |
_version_ |
1766004243291963392 |