Late summer sea ice segmentation with multi-polarisation SAR features in C- and X-band
Published version. Source at http://doi.org/10.5194/tcd-9-4539-2015 . In this study we investigate the potential of sea ice segmentation by C- and X-band multi-polarisation synthetic aperture radar (SAR) features during late summer. Five high-resolution satellite SAR scenes were recorded in the Fram...
Main Authors: | , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
The European Geosciences Union
2015
|
Subjects: | |
Online Access: | https://hdl.handle.net/10037/9073 https://doi.org/10.5194/tcd-9-4539-2015 |
id |
ftunivtroemsoe:oai:munin.uit.no:10037/9073 |
---|---|
record_format |
openpolar |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/9073 2023-05-15T16:18:07+02:00 Late summer sea ice segmentation with multi-polarisation SAR features in C- and X-band Fors, Ane Schwenke Brekke, Camilla Doulgeris, Anthony Paul Eltoft, Torbjørn Renner, Angelika Gerland, Sebastian 2015-09-01 https://hdl.handle.net/10037/9073 https://doi.org/10.5194/tcd-9-4539-2015 eng eng The European Geosciences Union The Cryosphere Discussions 2015, 9:4539-4581 FRIDAID 1321379 doi:10.5194/tcd-9-4539-2015 1994-0440 https://hdl.handle.net/10037/9073 URN:NBN:no-uit_munin_8638 openAccess VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430 Journal article Tidsskriftartikkel Peer reviewed 2015 ftunivtroemsoe https://doi.org/10.5194/tcd-9-4539-2015 2021-06-25T17:54:32Z Published version. Source at http://doi.org/10.5194/tcd-9-4539-2015 . In this study we investigate the potential of sea ice segmentation by C- and X-band multi-polarisation synthetic aperture radar (SAR) features during late summer. Five high-resolution satellite SAR scenes were recorded in the Fram Strait covering iceberg- fast first-year and old sea ice during a week with air temperatures varying around zero degrees Celsius. In situ data consisting of sea ice thickness, surface roughness and aerial photographs were collected during a helicopter flight at the site. Six polarimetric SAR features were extracted for each of the scenes. The ability of the individual SAR features to discriminate between sea ice types and their temporally consistency were examined. All SAR features were found to add value to sea ice type discrimination. Relative kurtosis, geometric brightness, cross-polarisation ratio and co-polarisation correlation angle were found to be temporally consistent in the investigated period, while co-polarisation ratio and co-polarisation correlation magnitude were found to be temporally inconsistent. An automatic feature-based segmentation algorithm was tested both for a full SAR feature set, and for a reduced SAR feature set limited to temporally consistent features. In general, the algorithm produces a good late summer sea ice segmentation. Excluding temporally inconsistent SAR features improved the segmentation at air temperatures above zero degrees Celsius. Article in Journal/Newspaper Fram Strait Sea ice The Cryosphere The Cryosphere Discussions University of Tromsø: Munin Open Research Archive |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430 |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430 Fors, Ane Schwenke Brekke, Camilla Doulgeris, Anthony Paul Eltoft, Torbjørn Renner, Angelika Gerland, Sebastian Late summer sea ice segmentation with multi-polarisation SAR features in C- and X-band |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430 |
description |
Published version. Source at http://doi.org/10.5194/tcd-9-4539-2015 . In this study we investigate the potential of sea ice segmentation by C- and X-band multi-polarisation synthetic aperture radar (SAR) features during late summer. Five high-resolution satellite SAR scenes were recorded in the Fram Strait covering iceberg- fast first-year and old sea ice during a week with air temperatures varying around zero degrees Celsius. In situ data consisting of sea ice thickness, surface roughness and aerial photographs were collected during a helicopter flight at the site. Six polarimetric SAR features were extracted for each of the scenes. The ability of the individual SAR features to discriminate between sea ice types and their temporally consistency were examined. All SAR features were found to add value to sea ice type discrimination. Relative kurtosis, geometric brightness, cross-polarisation ratio and co-polarisation correlation angle were found to be temporally consistent in the investigated period, while co-polarisation ratio and co-polarisation correlation magnitude were found to be temporally inconsistent. An automatic feature-based segmentation algorithm was tested both for a full SAR feature set, and for a reduced SAR feature set limited to temporally consistent features. In general, the algorithm produces a good late summer sea ice segmentation. Excluding temporally inconsistent SAR features improved the segmentation at air temperatures above zero degrees Celsius. |
format |
Article in Journal/Newspaper |
author |
Fors, Ane Schwenke Brekke, Camilla Doulgeris, Anthony Paul Eltoft, Torbjørn Renner, Angelika Gerland, Sebastian |
author_facet |
Fors, Ane Schwenke Brekke, Camilla Doulgeris, Anthony Paul Eltoft, Torbjørn Renner, Angelika Gerland, Sebastian |
author_sort |
Fors, Ane Schwenke |
title |
Late summer sea ice segmentation with multi-polarisation SAR features in C- and X-band |
title_short |
Late summer sea ice segmentation with multi-polarisation SAR features in C- and X-band |
title_full |
Late summer sea ice segmentation with multi-polarisation SAR features in C- and X-band |
title_fullStr |
Late summer sea ice segmentation with multi-polarisation SAR features in C- and X-band |
title_full_unstemmed |
Late summer sea ice segmentation with multi-polarisation SAR features in C- and X-band |
title_sort |
late summer sea ice segmentation with multi-polarisation sar features in c- and x-band |
publisher |
The European Geosciences Union |
publishDate |
2015 |
url |
https://hdl.handle.net/10037/9073 https://doi.org/10.5194/tcd-9-4539-2015 |
genre |
Fram Strait Sea ice The Cryosphere The Cryosphere Discussions |
genre_facet |
Fram Strait Sea ice The Cryosphere The Cryosphere Discussions |
op_relation |
The Cryosphere Discussions 2015, 9:4539-4581 FRIDAID 1321379 doi:10.5194/tcd-9-4539-2015 1994-0440 https://hdl.handle.net/10037/9073 URN:NBN:no-uit_munin_8638 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.5194/tcd-9-4539-2015 |
_version_ |
1766004245658599424 |