{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,20]],"date-time":"2026-02-20T09:48:02Z","timestamp":1771580882132,"version":"3.50.1"},"reference-count":43,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2021,10,6]],"date-time":"2021-10-06T00:00:00Z","timestamp":1633478400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Resources Canada\u2019s Office of Energy Research and Development","award":["GSC-19-103"],"award-info":[{"award-number":["GSC-19-103"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Landslides are the most common natural hazard in British Columbia. The province has recorded the largest number of historical landslide fatalities in Canada, and damage to infrastructure comes at a great cost. In order to understand the potential impacts of landslides, radar remote sensing has become a cost-effective method for detecting downslope movements. This study investigates downslope movements in the Southern Interior of British Columbia, Canada, with Sentinel-1 and RADARSAT Constellation Mission (RCM) interferometric synthetic aperture radar (InSAR) data. The 2-dimensional time-series analysis with Sentinel-1 ascending and descending InSAR pairs from October 2017 to June 2021 observed distinct earthflow movements of up to ~15 cm\/year in the east\u2013west direction. The Grinder Creek, Red Mountain, Yalakom River, and Retaskit Creek earthflows previously documented are still active, with east\u2013west movements of ~30 cm over the past four years. New RCM data acquired from June 2020 to September 2020 with a 4-day revisit capability were compared to 12-day Sentinel-1 InSAR pairs. The 4-day RCM InSAR pairs at higher spatial resolution showed better performance by detecting relatively small-sized slope movements within a few hundred meters, which were not clearly observed by Sentinel-1. The temporal variabilities observed from the RCM InSAR showed great potential for observing detailed slope movements within a narrower time window.<\/jats:p>","DOI":"10.3390\/rs13193999","type":"journal-article","created":{"date-parts":[[2021,10,8]],"date-time":"2021-10-08T21:26:20Z","timestamp":1633728380000},"page":"3999","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Sentinel-1 and RADARSAT Constellation Mission InSAR Assessment of Slope Movements in the Southern Interior of British Columbia, Canada"],"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"}]},{"given":"Andr\u00e9e","family":"Blais-Stevens","sequence":"additional","affiliation":[{"name":"Geological Survey of Canada (GSC), Natural Resources Canada, Ottawa, ON K1A 0E8, Canada"}]},{"given":"Sergey","family":"Samsonov","sequence":"additional","affiliation":[{"name":"Canada Centre for Mapping and Earth Observation (CCMEO), Natural Resources Canada, Ottawa, ON K1S 5K2, Canada"}]},{"given":"Jonathan","family":"Dudley","sequence":"additional","affiliation":[{"name":"Canada Centre for Mapping and Earth Observation (CCMEO), Natural Resources Canada, Ottawa, ON K1S 5K2, Canada"}]}],"member":"1968","published-online":{"date-parts":[[2021,10,6]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Blais-Stevens, A. 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