{"id":6990,"date":"2024-07-23T08:52:37","date_gmt":"2024-07-23T13:52:37","guid":{"rendered":"https:\/\/permafrostnet.ca\/?p=6990"},"modified":"2026-09-30T10:53:42","modified_gmt":"2026-09-30T15:53:42","slug":"seminar-videos-ice-wedges-of-the-hudson-bay-lowlands-and-precise-change-detection-with-airborne-insar-optical-photogrammetry-in-active-permafrost-regions","status":"publish","type":"post","link":"https:\/\/permafrostnet.ca\/fr\/news\/seminar-videos-ice-wedges-of-the-hudson-bay-lowlands-and-precise-change-detection-with-airborne-insar-optical-photogrammetry-in-active-permafrost-regions\/","title":{"rendered":"Seminar Videos – Ice-Wedges of the Hudson Bay Lowlands and Precise Change Detection with Airborne InSAR & Optical Photogrammetry in Active Permafrost Regions."},"content":{"rendered":"

The NSERC PermafrostNet seminar videos – Ice-Wedge Volume, Distribution, and Development in the Barrens of the Hudson Bay Lowlands, Northern Manitoba<\/a><\/em> et Precise Change Detection with Airborne InSAR and Optical Photogrammetry data in permafrost regions<\/a><\/em> are now available.<\/p>\n\n\n\n

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Tabatha Rahman<\/strong><\/a> presented\u00a0Ice-Wedge Volume, Distribution, and Development in the Barrens of the Hudson Bay Lowlands, Northern Manitoba<\/em>.<\/p>\n\n\n\n

Extensive ice-wedge polygon networks are found in the \u2018Barrens\u2019 of northern Manitoba, a 50,000 km2<\/sup> zone of continuous permafrost tundra that emerged from the Tyrrell Sea less than 5,500 years ago. Tabatha will present empirical results of ice-wedge volume and tri-dimensional distribution, and will focus on the environmental conditions associated with the growth and degradation of ice wedges in this uplifted permafrost peatland. Knowledge of wedge-ice morphology and development is essential for the prediction and mitigation of risks associated with anticipated permafrost thaw in the Barrens.<\/p>\n\n\n\n

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