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Articles by D.L. Forbes
Mechanisms, volumetric assessment, and prognosis for rapid coastal erosion of Tuktoyaktuk Island, an important natural barrier for the harbour and community
Shoreline projections As of 2018, the width of the island was reduced to 36 and 39 m at its two most narrow points (eastern and middle portions of the upland tundra terrace, respectively). This raises the question about how long it will be before the island is breached and divided, creating an opening and potential exposure for the harbour.
Subsidence drives habitat loss in a large permafrost delta, Mackenzie River outlet to the Beaufort Sea, western Arctic Canada
Risks of inundation and habitat conversion Using the observed residual consolidation subsidence, combined with modest thaw subsidence, and sedimentation rates of 2–4 mm/year, we have demonstrated the potential for inundation under projected rising sea levels, using a high-resolution digital elevation model for a representative area on the outer delta. Employing the gridded projections of James et al.
Postglacial sea-level lowstand on Cumberland Peninsula, Baffin Island, Nunavut
Authors: B. Cowan beth.j.cowan@gmail.com, J. Carter, D.L. Forbes, and T.
Postglacial sea-level lowstand on Cumberland Peninsula, Baffin Island, Nunavut
Depositional history and chronology The discovery and bathymetric mapping of submerged shore features confirms the Holocene submergence and transgression of eastern Cumberland Peninsula; however, these landforms cannot provide sea-level index points for the RSL history of the region without depositional ages. Delta formation is related to sediment supply and meltwater discharge from valley glaciers and therefore can be related to the deglacial chronology.
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