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River ice jams are a prime source of flood risk in cold regions. In April 2020, an ice jam developed on the Athabasca River in Canada – leading to the flooding of Fort McMurray. Satellite data provided by the European Union’s Copernicus Sentinels, are lending a hand to monitor river ice conditions.
This false-colour image was captured by the Copernicus Sentinel-2 mission and shows the extent of the flooding. This composite image contains images acquired on 28 April (majority of image, bottom right) and 29 April 2020 (top left). White lines in the image indicate the normal extent of the river channel.
Ice jams can occur at any time in winter, but the ones that take place during spring’s river ice breakup tend to be the most common and destructive. The flooding in Fort McMurray displaced some 13 000 people and damaged 1200 properties.
The independent Dutch institute for applied research, Deltares, are working together with the River Ice Team of Alberta Environment and Parks and, with scientific support from Natural Resources Canada, to set-up operational access to near real-time satellite data, and develop and implement methods to detect and classify river ice.
Read full story: Copernicus Sentinels help classify river ice