Combining TerraSAR-X and time-lapse photography for seasonal sea ice monitoring: the case of Deception Bay, Nunavik
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Published:2020-05-26
Issue:5
Volume:14
Page:1595-1609
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ISSN:1994-0424
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Container-title:The Cryosphere
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language:en
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Short-container-title:The Cryosphere
Author:
Dufour-Beauséjour Sophie, Wendleder Anna, Gauthier YvesORCID, Bernier MoniqueORCID, Poulin Jimmy, Gilbert Véronique, Tuniq Juupi, Rouleau Amélie, Roth Achim
Abstract
Abstract. This article presents a case study for the combined use of TerraSAR-X and time-lapse photography time series in order to monitor seasonal sea ice processes in Nunavik's Deception Bay. This area is at the confluence of land use by local Inuit, ice-breaking transport by the mining industry, and climate change. Indeed, Inuit have reported greater interannual variability in seasonal sea ice conditions, including later freeze-up and earlier breakup. Time series covering 2015 to 2018 were acquired for each data source: TerraSAR-X images were acquired every 11 d, and photographs were acquired hourly during the day. We used the combination of the two time series to document spatiotemporal aspects of freeze-up and breakup processes. We also report new X-band backscattering values over newly formed sea ice types. The TerraSAR-X time series further show potential for melt and pond onset.
Funder
Polar Knowledge Canada
Publisher
Copernicus GmbH
Subject
Earth-Surface Processes,Water Science and Technology
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