{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:02:24Z","timestamp":1760234544197,"version":"build-2065373602"},"reference-count":56,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>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\u2013April 2018 and October 2018\u2013May 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 \u22121 to \u22122 m were observed from landfast ice, which are likely due to longer radar penetration up to the ice\u2013water 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\u20132018 and 2018\u20132019 cycles.<\/jats:p>","DOI":"10.3390\/rs13112168","type":"journal-article","created":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T23:07:03Z","timestamp":1622588823000},"page":"2168","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["3D SAR Speckle Offset Tracking Potential for Monitoring Landfast Ice Growth and Displacement"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3285-7151","authenticated-orcid":false,"given":"Byung-Hun","family":"Choe","sequence":"first","affiliation":[{"name":"Canada Centre for Mapping and Earth Observation (CCMEO), Natural Resources Canada, Ottawa, ON K1S 5K2, Canada"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6798-4847","authenticated-orcid":false,"given":"Sergey","family":"Samsonov","sequence":"additional","affiliation":[{"name":"Canada Centre for Mapping and Earth Observation (CCMEO), Natural Resources Canada, Ottawa, ON K1S 5K2, Canada"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6037-8839","authenticated-orcid":false,"given":"Jungkyo","family":"Jung","sequence":"additional","affiliation":[{"name":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA"}]}],"member":"1968","published-online":{"date-parts":[[2021,6,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"105005","DOI":"10.1088\/1748-9326\/aae3ec","article-title":"Arctic sea ice thickness, volume, and multiyear ice coverage: Losses and coupled variability (1958\u20132018)","volume":"13","author":"Kwok","year":"2018","journal-title":"Environ. 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