3D SAR Speckle Offset Tracking Potential for Monitoring Landfast Ice Growth and Displacement
This study investigates the growth and displacement of landfast ice along the shoreline of the Mackenzie Delta in Northwest Territories, Canada, by synthetic aperture radar (SAR) speckle offset tracking (SPO). Three-dimensional (3D) offsets were reconstructed from Sentinel-1 ascending and descending...
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ftmdpi:oai:mdpi.com:/2072-4292/13/11/2168/ 2023-08-20T04:07:54+02:00 3D SAR Speckle Offset Tracking Potential for Monitoring Landfast Ice Growth and Displacement Byung-Hun Choe Sergey Samsonov Jungkyo Jung agris 2021-06-01 application/pdf https://doi.org/10.3390/rs13112168 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/rs13112168 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 13; Issue 11; Pages: 2168 SAR speckle offset tracking 3D time-series analysis landfast ice growth Mackenzie Delta Sentinel-1 Text 2021 ftmdpi https://doi.org/10.3390/rs13112168 2023-08-01T01:51:37Z This study investigates the growth and displacement of landfast ice along the shoreline of the Mackenzie Delta in Northwest Territories, Canada, by synthetic aperture radar (SAR) speckle offset tracking (SPO). Three-dimensional (3D) offsets were reconstructed from Sentinel-1 ascending and descending SAR images acquired on the same dates during the November 2017–April 2018 and October 2018–May 2019 annual cycles. The analysis revealed both horizontal and vertical offsets. The annual horizontal offsets of up to ~8 m are interpreted as landfast ice displacements caused by wind and ocean currents. The annual vertical offsets of approximately −1 to −2 m were observed from landfast ice, which are likely due to longer radar penetration up to the ice–water interface with increasing landfast ice thickness. Numerical ice thickness model estimates supported the conclusion that the cumulative vertical negative offsets correspond to the growth of freshwater ice. Time-series analysis showed that the significant growth and displacement of landfast ice in the Mackenzie Delta occurred between November and January during the 2017–2018 and 2018–2019 cycles. Text Mackenzie Delta Northwest Territories MDPI Open Access Publishing Northwest Territories Canada Mackenzie Delta ENVELOPE(-136.672,-136.672,68.833,68.833) Remote Sensing 13 11 2168 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
SAR speckle offset tracking 3D time-series analysis landfast ice growth Mackenzie Delta Sentinel-1 |
spellingShingle |
SAR speckle offset tracking 3D time-series analysis landfast ice growth Mackenzie Delta Sentinel-1 Byung-Hun Choe Sergey Samsonov Jungkyo Jung 3D SAR Speckle Offset Tracking Potential for Monitoring Landfast Ice Growth and Displacement |
topic_facet |
SAR speckle offset tracking 3D time-series analysis landfast ice growth Mackenzie Delta Sentinel-1 |
description |
This study investigates the growth and displacement of landfast ice along the shoreline of the Mackenzie Delta in Northwest Territories, Canada, by synthetic aperture radar (SAR) speckle offset tracking (SPO). Three-dimensional (3D) offsets were reconstructed from Sentinel-1 ascending and descending SAR images acquired on the same dates during the November 2017–April 2018 and October 2018–May 2019 annual cycles. The analysis revealed both horizontal and vertical offsets. The annual horizontal offsets of up to ~8 m are interpreted as landfast ice displacements caused by wind and ocean currents. The annual vertical offsets of approximately −1 to −2 m were observed from landfast ice, which are likely due to longer radar penetration up to the ice–water interface with increasing landfast ice thickness. Numerical ice thickness model estimates supported the conclusion that the cumulative vertical negative offsets correspond to the growth of freshwater ice. Time-series analysis showed that the significant growth and displacement of landfast ice in the Mackenzie Delta occurred between November and January during the 2017–2018 and 2018–2019 cycles. |
format |
Text |
author |
Byung-Hun Choe Sergey Samsonov Jungkyo Jung |
author_facet |
Byung-Hun Choe Sergey Samsonov Jungkyo Jung |
author_sort |
Byung-Hun Choe |
title |
3D SAR Speckle Offset Tracking Potential for Monitoring Landfast Ice Growth and Displacement |
title_short |
3D SAR Speckle Offset Tracking Potential for Monitoring Landfast Ice Growth and Displacement |
title_full |
3D SAR Speckle Offset Tracking Potential for Monitoring Landfast Ice Growth and Displacement |
title_fullStr |
3D SAR Speckle Offset Tracking Potential for Monitoring Landfast Ice Growth and Displacement |
title_full_unstemmed |
3D SAR Speckle Offset Tracking Potential for Monitoring Landfast Ice Growth and Displacement |
title_sort |
3d sar speckle offset tracking potential for monitoring landfast ice growth and displacement |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/rs13112168 |
op_coverage |
agris |
long_lat |
ENVELOPE(-136.672,-136.672,68.833,68.833) |
geographic |
Northwest Territories Canada Mackenzie Delta |
geographic_facet |
Northwest Territories Canada Mackenzie Delta |
genre |
Mackenzie Delta Northwest Territories |
genre_facet |
Mackenzie Delta Northwest Territories |
op_source |
Remote Sensing; Volume 13; Issue 11; Pages: 2168 |
op_relation |
https://dx.doi.org/10.3390/rs13112168 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs13112168 |
container_title |
Remote Sensing |
container_volume |
13 |
container_issue |
11 |
container_start_page |
2168 |
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1774719859665403904 |