Is Radar Phase Information Useful for Sea Ice Detection in the Marginal Ice Zone?
With continuing sea ice reductions in the Arctic, dynamic physical and ecological processes have more active roles compared to the ice-locked, isolated Arctic Ocean of previous decades. To better understand these changes, observations of high-resolution sea ice conditions are needed. Remote sensing...
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ftdoajarticles:oai:doaj.org/article:a534f5d44dee4fccb01dd356495cc0f5 2023-05-15T14:52:33+02:00 Is Radar Phase Information Useful for Sea Ice Detection in the Marginal Ice Zone? Fuhong Ding Hui Shen William Perrie Yijun He 2020-06-01T00:00:00Z https://doi.org/10.3390/rs12111847 https://doaj.org/article/a534f5d44dee4fccb01dd356495cc0f5 EN eng MDPI AG https://www.mdpi.com/2072-4292/12/11/1847 https://doaj.org/toc/2072-4292 doi:10.3390/rs12111847 2072-4292 https://doaj.org/article/a534f5d44dee4fccb01dd356495cc0f5 Remote Sensing, Vol 12, Iss 1847, p 1847 (2020) phase difference polarimetry SAR sea ice Science Q article 2020 ftdoajarticles https://doi.org/10.3390/rs12111847 2022-12-31T10:41:13Z With continuing sea ice reductions in the Arctic, dynamic physical and ecological processes have more active roles compared to the ice-locked, isolated Arctic Ocean of previous decades. To better understand these changes, observations of high-resolution sea ice conditions are needed. Remote sensing is a useful tool for observations in the harsh Arctic environment. For unsupervised ice detection, we demonstrate the promising value of radar phase difference from polarimetric radar measurements in this study, based on full polarimetric complex RADARSAT-2 SAR images in the marginal ice zone. It is demonstrated that the phase difference from co-polarized and cross-polarized synthetic aperture radar (SAR) images show promising capability for high resolution sea ice discrimination from open water. In particular, the phase difference shows superior potential for the detection of frazil ice compared to the traditional methodology based on the radar intensity ratio. The relationship between phase difference and radar incidence angle is also analyzed, as well as the potential influence of high sea state. The new methodology provides an additional tool for ice detection. In order to make the best use of this tool, directions for further studies are discussed for operational ice detection and possible ice classification. Article in Journal/Newspaper Arctic Arctic Ocean Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Remote Sensing 12 11 1847 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
phase difference polarimetry SAR sea ice Science Q |
spellingShingle |
phase difference polarimetry SAR sea ice Science Q Fuhong Ding Hui Shen William Perrie Yijun He Is Radar Phase Information Useful for Sea Ice Detection in the Marginal Ice Zone? |
topic_facet |
phase difference polarimetry SAR sea ice Science Q |
description |
With continuing sea ice reductions in the Arctic, dynamic physical and ecological processes have more active roles compared to the ice-locked, isolated Arctic Ocean of previous decades. To better understand these changes, observations of high-resolution sea ice conditions are needed. Remote sensing is a useful tool for observations in the harsh Arctic environment. For unsupervised ice detection, we demonstrate the promising value of radar phase difference from polarimetric radar measurements in this study, based on full polarimetric complex RADARSAT-2 SAR images in the marginal ice zone. It is demonstrated that the phase difference from co-polarized and cross-polarized synthetic aperture radar (SAR) images show promising capability for high resolution sea ice discrimination from open water. In particular, the phase difference shows superior potential for the detection of frazil ice compared to the traditional methodology based on the radar intensity ratio. The relationship between phase difference and radar incidence angle is also analyzed, as well as the potential influence of high sea state. The new methodology provides an additional tool for ice detection. In order to make the best use of this tool, directions for further studies are discussed for operational ice detection and possible ice classification. |
format |
Article in Journal/Newspaper |
author |
Fuhong Ding Hui Shen William Perrie Yijun He |
author_facet |
Fuhong Ding Hui Shen William Perrie Yijun He |
author_sort |
Fuhong Ding |
title |
Is Radar Phase Information Useful for Sea Ice Detection in the Marginal Ice Zone? |
title_short |
Is Radar Phase Information Useful for Sea Ice Detection in the Marginal Ice Zone? |
title_full |
Is Radar Phase Information Useful for Sea Ice Detection in the Marginal Ice Zone? |
title_fullStr |
Is Radar Phase Information Useful for Sea Ice Detection in the Marginal Ice Zone? |
title_full_unstemmed |
Is Radar Phase Information Useful for Sea Ice Detection in the Marginal Ice Zone? |
title_sort |
is radar phase information useful for sea ice detection in the marginal ice zone? |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/rs12111847 https://doaj.org/article/a534f5d44dee4fccb01dd356495cc0f5 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Ocean Sea ice |
op_source |
Remote Sensing, Vol 12, Iss 1847, p 1847 (2020) |
op_relation |
https://www.mdpi.com/2072-4292/12/11/1847 https://doaj.org/toc/2072-4292 doi:10.3390/rs12111847 2072-4292 https://doaj.org/article/a534f5d44dee4fccb01dd356495cc0f5 |
op_doi |
https://doi.org/10.3390/rs12111847 |
container_title |
Remote Sensing |
container_volume |
12 |
container_issue |
11 |
container_start_page |
1847 |
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1766323783343276032 |